Automotive Emission Control. INSTITUTION Mid-America Vocational Curriculumconsortium

Total Page:16

File Type:pdf, Size:1020Kb

Automotive Emission Control. INSTITUTION Mid-America Vocational Curriculumconsortium DOCUMENT RESUME I ED 219 645 CE 033 502 1 AUTHOR , Lee, Billy DA; And Others) TITLE Automotive Emission Control. INSTITUTION Mid-America Vocational CurriculumConsortium, Stillwater, Okla. PUB DATE 79 NOTE 315p.; For a related document seeED 132 391. AVAILABLE FROMMid-America Vocational CutriculumConsortium. 1515 West Sixth Avenue, Stillwater, OK74074. EDR RICE N711_Plus Postage. PC Not Available from EDRS. Air Pollution; AAuto Mechanics; Behavioral Objectives; Competency Based Education; Criterion Referenced Tests; *Engines; Equipment; Hand tools; *Learning Activities; Postsecondary-Education; Secondary Education; Technical Occupations; Transparencies; *Unitsof Study; Vocational Education . IDENTIFIERS *Automotive Fuel Systems; *Emission Control ABSTRACT, . This publication contains instruttional materials for- both teachers and students ,for a course autdinotive emission . control. Instructional materials in thi publication are written in' _terms of student performance usiqg measuCieble,objectives. Thscourse includes 16 units. Each'instructional unit ihcludessome or all of ., theBasic components-of a unit of instruction: performance objectives, suggested activities for tepcber and students, informatibn sheets, aisignment sheets, job sheets., transparency 'masters, tests, and ansiers to the tests. Unitsare liberally illustrated and are planned for more than one lessonor class period of instruction. Information for the teacher'includesan instructional analysis of automotive emission.control, anda list of tools and eqUipment needed. Topics covered'in.the 16 unitsare the tollowing: introduction to automotive emission controlvinternal combustion engine pollutants; oitigin of,internal-combustion engine pollutants; heated air induction systems; evaporative emissione control system; engine modification; carburetor modifications; ignition timing System; spark advance controls; eXhaust crossover system; exhaust gaX recirculation system; positive crankcase ventilation system; air injectkonIsystem; catalytic converter systems; electronic controls; 'aPd totting. (KC) ' r 4 * Reproductions supplied by EDRS are the best thatcan be made * . * ' from the original document. * *******************************t*************************************** fi AUTOMOTIVE EftiSSION CONTROL by Billy D Lee ,nd Ronald Ragazzi Revised by Don Eshelby Developed by the Mid-America Vocational Curriculum Consortium, Inc. 4 , Board of Directors Pat Lindley, Texastitiairman David Merrill, South DakOta, Vice Chairman Shirley Mannion, Arizona Pgggy Patrick, Arkansas Rober.t Perry, Colorado Dean Prochaska, Kansas David Poston, Louisiana Amon Herd, Missouri Merle Rudebusch, Nebraska a us DepserrmENT O toucimos - Alan Korgan, New M.dxico NATIONAL INSTITUTE OEEDUCATION EDUCTIONAL RESOURCES INFORMATION Larry Barnhardt, North.Dakota "PERMISSION TOREPRODUCi THIS CENTER (ERIC, MATEBIAL IN NJ Thesocurnont has been reoroddced Bob 'Patton, Oklahoma MICROFItHE ONLY HAS BEEN GRANTED horn !hp oomon or o.qnizabon Ann Benson, Executive Director BY 000tomOnq 4 . Wow hamlet bay., bornmach. to irnrooye ,jo1979 , ,orodur bon (1,1,11,tY PovIta clf v.v. 04 ocontonotatodsn dug docu moot do not noressont reproaont offrosI NIE . TO THE EDOCATIONAL RE4OURCES putition471poky INFORMATION 'CENTER(ERIC)." To' ., De" 4 48. Copyright1979. Micl-America Vocational Curriculum'Consortfum, Inc Printed byl State Department of Vocational and Tes9,15ical Education Stil4vvater, Oklahoma 7'4074 ee 4 4 0 TA6 LE OF CONTENTS Unit 1 Introduction to AutomuyVe Emission,Cont'rOl AEC 1 Unit 11 Internal Combustion Engine Pollutants AEC 13 Unit 141 Origin of Internal Combustion Engine Pollytants , AEC.3s1- - . .Unit IV Heated Air Induction Systems 4 :AEC.49, Unit VEvaporative Emissibns Control , AEG 79 _ . UritVI Engine Modification AEC 107 4 Unit VIICarburetor Modifications 4Am, 135. .... .. ....4 . Unit VIII IgnitionTiming Sy;tem Al C 156 . 4 Unit IX Spary Advance COntfols . .: 1/4-' --"'....'I.,.AEC. 181 \ .. mk ' , Unit X Exhaust CrossoVerAystem.-\.' .. AEC201 .' . Unit XI Exhaust Gas Recirciatiori Sy'sterti , .AEC'217 J # Unit XIIPositive"Crankcase ViEntl*i.on System 4 -AEt241 ; , A Oft Unit XIII Air Injection Systei-A a AEC 261 )t. Unit XIV Catalytic Converte:r SyStem,s E C act 4' ;- etz-- r , \ Unit XV Electronic Coritrols . I. 4 '- AtG 33r r Unit'XY1 Testing io 4 AEC'357 S. fe, ; C .1"* S.01. 4. .4 ?. PREFACE r. For many years those responsible for teaching automoxive emisticA control have ' felta need for instructional materials touse in this area. A ieam of teachers, industry representa- tives,. and gra* and industrial education staffmembers accepted this challenge and have . produced marAials which will meet the needs.pt many- tyr)es of courses where studentsare . expected- to become proficient in Vie-area of autornottke emission contrbl. The MAVCC Automotive Emission Cgorol publicaiionis designed to supplement the existing auto rnechtnics ihstructional materials currentlyused by scrgool system personnel. mi- Every effort has been made to make.thispublication basic, readable, and by allmeans .... usable. Three vital parts of instruction havebeen intentionally omitted from this puRication: . motivation, personaliotion, agd localization:-These areas are left to the individual instruetors . ancl the instructors should capitalize ,.on them.'Only.. thin will this ppblication really become c a vital part pf the reaching-learning process.. r . .. %. 44 - - . , . In addition, we woulci.appreeiateyour help. We check for contertt cluality,"spelling, and 'r e . ..: --....*.,, typographical error's many times in the developmentof a manual. If is still possible, however; * ..-... ...- . - . " t'for an errorto show up in a publication. .. *r *.; .. .- . ..., . ._ . ..-- . e _ ,..., -. - .If, in rthe 'use of-this publication, you shotildfigd sornethirlg-questionakiKee wotik . 7 apprcciate ou bringing it to our attentioll A, copy of the jaage or paws i.t; tlifest 1 9 n wi)11 . ...,-.. y.orir suligestions for correeton would\certaiialy help', . .- .." us whpn Am reiise anti update-materials. .. _ . !. .3; . ._.A, ..- . ...'... ,,Wilte lryirig-lo:provide ,.. 4k- .., . you iivitff the best possible Curriculum raterials and,wiltcer . -.. tainly..`ap'preciate ,. your help ill. detecticig arsai where poskible corrections iiréneeded to... .' 7..., . Ir ..01reyr..:;. .1 maintain,the qualiteiyou want 9nd deserve. .* ; - : . % . 't. .. 0 .. , , ..' ' . %. ' .. .. i 4 . a 41' . -'r ... ; . 4. 4. .. ... s :6 Y . I ' ! r i .1.-0. if . --0 : s . A s s- s . 6 i1: . : . ^ «. J. '... : .. f *. - , . ,.'''* d Ann densbn, . V , ..,. ...., , .`. .. -.. xecutsve Difector ..' ; . , Mid-America Vocational Cuti4-blum . I- - .....- 04 . r , .., -Consorithiurn, Inc. , Z : 7 fr a a A a. , -FOREWORD ca. t a . Ni. , . The-ttlid-America Vocatlonal Curriculum ConIortiym,(MAVCC) was organized for .the purpose of developing instructional materialfor the, twelveJnember statei. Priorities. for developing.MAVCC materialare determined annually based on the needs as identiAed by all mernber states. One of the priorities identinedwas autmotive ernissioncontror This.. \ publidation'is designed to provide the needed instrktionalmaterial to supplement auto _ . mechailic programs. 9 , , - , .- 4, . The success of this publication is due, in largepart, to theApabitilies of the gersorinel who worked with its development. The technical attei- haiseveral years of industry as weft,----- .- . .as tebehing experience. Assistihg him in his 'efforts were representativerailieattto Mechanic. - - . 'profession who brought 4th`.them techniRl eRpertise . .. ,, atitrth& experience related .to the- t cressroom and to the trade, Toass.ure eatthe materials wotird parallel the.industr4 envirta-._ -. merit and lie accepted ,es a transportSble bgsic teachingto1N, 'organiiations ond indukor \- "represetitatives-mie-involyedI in the developrhentatphases of the manual. &ipreciatio11-16 e , . _. extended to therryftir their Zaluittle Contributions. I A ^I.* . .. to the marrialk. .. - -: . ... _ .. : . " , . - ... - - . ... - - . - p... This pu6lication is glesignell t6 aviSt teachers it' improving, I, ..- - . inttrubtion:. As tbese Rub-*.. - ... :.:lications are used, Tt`ie hOlied th4t the stueientrpedolmanQe will : . irnprov.e arid-that students-. will be bettei-:able-io.,,aSkuit4e i role ih.fheir chpsen-octupati6P, automobile repair." ..° . o 4. .4".. ... 4. t .t 4.4 .. " . * .' ... a , ..22-0: , lnyryCtic.inalMatelials in this publication'areewitteniniterrnW-Stu.dent peeatmande - 4 Using fneasuiable sabjecfivesf,This-isan innoVatlye ap2ro;ch toZreactling, that Acteiits and- .I -.:. amnelats.the teachli'mg/lear'hini'process. Criteriep.,referencedeyakkation instrumeptt_ are providell .for uniform measurement of student TiFogresi-In idcilitiori to evaluating ,retall . - infoirrn-ation,-teac"h,er . e- - are Acoorageel-, 't,4 evalua" otherlartii includingprocess and . ....., . .s.- 4 . pcoduct as intlicated at the' end of eacip instruc4ior1al uhit. "--- - , ..: ....,,.. _ / . ai , . 3 ; " o' .. 6111,,,,: ' . 'I --'. 4.,,it.4he simetelefief of the MAVCC personneJ and .thosememLbterswhoserved,on the '-actvliorroMmitteethat Ihis publication' wIliltlów thestudents to.become better-prepared and moce effective *others of the Work force. Pat Lindley, Chairman Board of Directors Mid-America Vocational Curriculum Consortium 4 V . 4/-.. -1-.' a .. -f O. ACKNOWLEDEMJTS % 6,6 0 Apf5reciatiori is exTended .4 . e "' 4 II to. those iQdividuals whd,'contributed "their'time and talents. -4--.ifolfie`revision_of
Recommended publications
  • Bluecat™ 300 Brochure
    Your LSI engine emission control just got easier! The BlueCAT™ 300 is a Retrofit Emissions Control System which has been verified by the California Air Resources Board (CARB) for installation on uncontrolled gaseous-fueled Large Spark-Ignition (LSI) engines. BlueCAT™ 300 systems control exhaust emissions and noise from industrial forklift trucks, floor care machinery, aerial lifts, ground support equipment, and other spark-ignition rich-burn (stoichiometric) engines. Nett Technologies’ BlueCAT™ 300 practically eliminates all of the major exhaust pollutants: Carbon Monoxide (CO) and Oxides of Nitrogen (NOx) emissions are reduced by over 90% and Hydrocarbons (HC) by over 80%. BlueCAT™ 300 three-way catalytic converters consist of a high-performance emissions control catalyst and an advanced electronic Air/Fuel Ratio Controller. The devices work together to optimize engine operation, fuel economy and control emissions. The controller also reduces fuel consumption and increases engine life. Nett's BlueCAT™ 300 catalytic muffler replaces the OEM muffler simplifying installation and saving time. The emission control catalyst is built into the muffler and its size is selected based on the displacement of the engine. Thousands of direct-fit designs are available for all makes/models of forklifts and other equipment. The BlueCAT™ 300 catalytic muffler matches or surpasses the noise attenuation performance of the original muffler with the addition of superior emissions reduction performance. NIA ARB OR IF L ™ A C BlueCAT VERIFIED 300 LSI-2 Rule 3-Way Catalyst scan and learn Sold and supported globally, Nett Technologies Inc., develops and manufactures proprietary catalytic solutions that use the latest in diesel oxidation catalyst (DOC), diesel particulate filter (DPF), selective catalytic reduction (SCR), engine electronics, stationary engine silencer, exhaust system and exhaust gas dilution technologies.
    [Show full text]
  • Honda Gx 390 Tech Manual
    GX240 GX270 GX340 GX390 UT2/RT2 Technical Manual ©2010 American Honda Motor Co., Inc. PTR54179 All Rights Reserved GX240 • GX270 • GX340 • GX390 (UT2/RT2) Technical Manual Preface This manual covers engine selection, engine installation design and engine installation testing, so the combination of a Honda engine and your equipment will make the best possible product. Please feel free to contact your Honda Engine Distributor at any time for additional technical information or to discuss your engine application needs. All information contained in this manual is based on the latest product information available at the time of printing. We reserve the right to make changes at anytime without notice. No part of this publication may be reproduced, or transmitted, in any form or by any means, electronic, mechanical photocopying, recording or otherwise, without the prior written permission of the publisher. This includes text, figures and tables. Contents Design Features .......................................................... 2 Starting Performance ...........................................16 Emission Regulations ................................................. 2 Installation Considerations ........................................17 Recommended Power Range ..................................... 3 Maintenance Points Accessibility ........................17 Maximum Operation ............................................... 3 Dimensional Drawings ...............................................19 Continuous Operation ...........................................
    [Show full text]
  • MGA Supercharger System Installation Instructions for 1955 to 1962 MGA
    MGA Supercharger System Installation Instructions For 1955 to 1962 MGA PART # 150-040 440 Rutherford St. P.O. Box 847 Goleta, CA 93117 1-800-667-7872 • FAX 805-692-2525 • www.mossmotors.com Please read and understand these valve between the barbed fitting and the instructions completely before you brake booster (closer to the booster) with begin the installation. the check valve arrow pointing toward the supercharger manifold. A few notes before you begin: Hose clamps: Re-use hose clamps, or Engine condition - Your car should have purchase new ones where necessary. Use a fresh tune up, including new spark plug new hose clamps on all fuel connections. wires, points, and a new distributor cap and rotor. Spark plugs are included in the If you have installed vacuum boosted supercharger system. brakes - you MUST install a check valve (Moss Part # 150-071) in the vacuum How superchargers work — line. This will prevent pressurized air from Superchargers compress the air/fuel mix- reaching the brake booster system and ture, filling cylinders with a greater charge damaging it. To install, remove the larger than when normally aspirated. Normally of the 3 plugs in the back of the super- aspirated engines produce vacuum, read charger manifold and install a barbed in inches of mercury, superchargers and fitting using teflon tape on the threads. turbochargers produce boost, read in posi- Using 3/8 in vacuum line, install the check tive pounds per square inch. 150-040 -1- Revised 1/11 Installation Instructions Boost capacity is determined by supercharger rod, jet, and slide have been altered to run prop- RPM which is, of course, affected by pulley size erly and safely on a wide range of supercharged, (the smaller the supercharger pulley, the faster unmodified engines.
    [Show full text]
  • Outboard Protection
    Get Premium Outboard Protection. For True Peace of Mind. Passport Premier offers comprehensive, long-term engine package protection for your new or pre-owned vessel. Even entire engine assemblies are replaced if necessary. So you can enjoy your time on the water, knowing you are covered against costly repairs for years to come. Passport Premier lets you head out with confidence: • Long-term coverage on over 120 major engine parts • Covers overheating, even detonation, lots more • Repair reimbursement includes parts and labor • Locking in now offers assurance against inflation • Protection cost can be rolled into your boat financing • All benefits are transferable for higher resale value With expert service at any manufacturer authorized facility and plan management by Brunswick, a top U.S. boat and engine seller, it’s coverage you can truly count on. Comprehensive Extended Protection Benefits Non-Defective Engine Breakdown Claim Payment Benefits Service Assist Engine Sensor Failures Carbonized Rings Lubricants Hoses On-water towing Pick Up/delivery Thermostat Failures Heat Collapsed Rings Coolants Engine Tuning Hoist/lift-out Lake Test Overheating* Scored Pistons Belts Taxes Haul Out Sea Trial Preignition Scored Cylinders Spark Plugs Shop Supplies Dockside repair call Detonation Heat Cracked Heads Clamps Haul Out Burnt Valves Warped Heads Filters Transfer Provision Bent Valves Heat Cracked Block Tuliped Valves All service contract plan benefits transferable on new boats – *Any overheating conditions created by raw water pump and/or impeller
    [Show full text]
  • Evaporative Emission Control Technologies for Gasoline Powered Vehicles
    Evaporative Emission Control Technologies for Gasoline Powered Vehicles December 2010 Manufacturers of Emission Controls Association 2020 N. 14th St. * Suite 220 * Arlington, VA 22201 www.meca.org www.dieselretrofit.org TABLE OF CONTENTS Executive Summary ........................................................................................................................ 1 1.0 Introduction ............................................................................................................................... 3 2.0 Current Evaporative Emissions Regulations in the U.S. .......................................................... 5 2.1 ARB’s Proposed LEV III Evaporative Emissions Requirements ................................. 7 2.2 Test Methods for Measuring Evaporative Emissions ................................................... 9 3.0 Technologies to Control Evaporative Emissions .................................................................... 10 3.1 Permeation Controls.................................................................................................... 11 3.2 Carbon Canisters ......................................................................................................... 12 3.3 Activated Carbon ........................................................................................................ 14 3.4 Air Intake Systems (AIS) ............................................................................................ 16 3.5 On-Board Refueling Vapor Recovery .......................................................................
    [Show full text]
  • Research Article Development of an Integrated Cooling System Controller for Hybrid Electric Vehicles
    Hindawi Journal of Electrical and Computer Engineering Volume 2017, Article ID 2605460, 9 pages https://doi.org/10.1155/2017/2605460 Research Article Development of an Integrated Cooling System Controller for Hybrid Electric Vehicles Chong Wang,1 Qun Sun,1 and Limin Xu2 1 School of Mechanical and Automotive Engineering, Liaocheng University, Liaocheng, China 2School of International Education, Liaocheng University, Liaocheng, China Correspondence should be addressed to Chong Wang; [email protected] Received 14 January 2017; Accepted 15 March 2017; Published 10 April 2017 Academic Editor: Ephraim Suhir Copyright © 2017 Chong Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. A hybrid electrical bus employs both a turbo diesel engine and an electric motor to drive the vehicle in different speed-torque scenarios. The cooling system for such a vehicle is particularly power costing because it needs to dissipate heat from not only the engine, but also the intercooler and the motor. An electronic control unit (ECU) has been designed with a single chip computer, temperature sensors, DC motor drive circuit, and optimized control algorithm to manage the speeds of several fans for efficient cooling using a nonlinear fan speed adjustment strategy. Experiments suggested that the continuous operating performance of the ECU is robust and capable of saving 15% of the total electricity comparing with ordinary fan speed control method. 1. Introduction according to water temperature. Some recent studies paid more attention to the nonlinear engine and radiator ther- A hybrid electrical vehicle (HEV) employs both a turbo diesel mocharacteristics and the corresponding nonlinear PWM engine and an electric motor to drive the vehicle in different control techniques [6–9], which so far has not yielded mass speed-torquescenarios.Aneffectivethermomanagement produced equipment.
    [Show full text]
  • GENERAL INSTRUCTIONS for ALL THROTTLE PLATE KITS Installation Instructions
    GENERAL INSTRUCTIONS FOR ALL THROTTLE PLATE KITS Installation Instructions WARNING! These instructions must be read and fully understood before installation. If this manual is not fully understood, installation should not be attempted. GENERAL: These are basic general instructions to remove and install the throttle plates in any two or four barrel Holley carburetors. Since a four barrel carburetor was used in this instruction sheet, the same basic removal and installation steps apply to two barrels also. IMPORTANT NOTE: Before starting the actual work, go through a “dry” run with the throttle body and the instruction sheet. This will help you familiarize yourself and gain confidence with all the procedures. TOOLS AND MATERIAL REQUIRED FOR INSTALLATION Phillips screwdriver Standard screwdriver Vise Soft wood blocks Duct tape Fine/medium file Loctite Grade 290 “Duck Billed” tip vise grips Carburetor stand (or suitable holding fixture) Access to compressed air REMOVAL OF THROTTLE BODY: 1. Place carburetor on its side to remove the throttle body screws. On vacuum secondary four barrels, it will be necessary to remove the “C” clip which holds the vacuum diaphragm stem onto the secondary throttle shaft. See Figure 1. 2. Place all screws, clips, and links to the side for later installation. FIGURE 1 FIGURE 2 Page 1 FIGURE 3 Front Side of Primary Throttle Bores shown FIGURE 4 REMOVAL OF OLD THROTTLE PLATES 1. Place the throttle body on a carburetor stand. See Figure 2. RECOMMENDATION: When servicing a carburetor off the vehicle it is recommended to place it in a suitable holding fixture. This helps prevent damage to the machined surfaces of the throttle body.
    [Show full text]
  • Review Paper on Vehicle Diagnosis with Electronic Control Unit
    Volume 3, Issue 2, February – 2018 International Journal of Innovative Science and Research Technology ISSN No:-2456 –2165 Review Paper on Vehicle Diagnosis with Electronic Control Unit Rucha Pupala Jalaj Shukla Mechanical, Sinhgad Institute of Technology and Science Mechanical, Sinhgad Institute of Technology and Science Pune, India Pune, India Abstract—An Automobile vehicle is prone to various faults stringency of exhaust gas legislation, the electronically due to more complex integration of electro-mechanical controlled system has been widely used in engines for components. Due to the increasing stringency of emission performance optimization of the engine as well as vehicle norms improved and advanced electronic systems have propelled by the engine[1].The faults in the automotive engine been widely used. When different faults occur it is very may lead to increased emissions and more fuel consumption difficult for a technician who does not have sufficient with engine damage. These affects can be prevented if faults knowledge to detect and repair the electronic control are detected and treated in timely manner. A number of fault system. However such services in the after sales network monitoring and diagnostic methods have been developed for are crucial to the brand value of automotive manufacturer automotive applications. The existing systems typically and client satisfaction. Development of a fast, reliable and implement fault detection to indicate that something is wrong accurate intelligent system for fault diagnosis of in the monitored system, fault separation to determine the automotive engine is greatly urged. In this paper a new exact location of the fault i.e., the component which is faulty, approach to Off- Board diagnostic system for automotive and fault identification to determine the magnitude of the fault.
    [Show full text]
  • Virtual Sensor for Automotive Engine to Compensate for the Map, Engine Speed Sensors Faults
    Virtual Sensor For Automotive Engine To Compensate For The Map, Engine Speed Sensors Faults By Sohaub S.Shalalfeh Ihab Sh.Jaber Ahmad M.Hroub Supervisor: Dr. Iyad Hashlamon Submitted to the College of Engineering In partial fulfillment of the requirements for the degree of Bachelor degree in Mechatronics Engineering Palestine Polytechnic University March- 2016 Palestine Polytechnic University Hebron –Palestine College of Engineering and Technology Mechanical Engineering Department Project Name Virtual sensor for automotive engine to compensate for the map, engine speed sensors faults Project Team Sohaub S.shalalfeh Ihab Sh.Jaber Ahmad M.Hroub According to the project supervisor and according to the agreement of the testing committee members, this project is submitted to the Department of Mechanical Engineering at College of Engineering in partial fulfillments of the requirements of the Bachelor’s degree. Supervisor Signature ………………………….. Committee Member Signature ……………………… ……………………….. …………………… Department Head Signature ………………………………… I Dedication To our parents. To all our teachers. To all our friends. To all our brothers and sisters. To Palestine Polytechnic University. Acknowledgments We could not forget our families, who stood by us, with their support, love and care for our whole lives; they were with us with their bodies and souls, believed in us and helped us to accomplish this project. We would like to thank our amazing teachers at Palestine Polytechnic University, to whom we would carry our gratitude our whole life. Special thanks
    [Show full text]
  • Carbureted Fuel Pressure Regulators TB
    Aeromotive, Inc. Technical Bulletin #201 From: Aeromotive Technical Department Date: 12/8/14 Re: Carbureted Fuel Pressure Regulators, Vacuum and Boost Reference: Aeromotive Carbureted Bypass Regulators: Why and how to use vacuum and boost reference. All Aeromotive, Carburetor Bypass are designed to allow the regulated fuel pressure to be vacuum or boost referenced on a 1:1 ratio with PSI. The purpose of the boost reference feature is to ensure fuel pressure at the inlet of the needle-and-seat rises with boost, offsetting any air pressure opposing fuel flow at the outlet of the needle and seat, in the float bowl itself. For “blow through” carbureted engines, where air is pushed or “blown” through the carburetor from a turbo or centrifugal supercharger, the carburetor and float bowls are pressurized, along with the intake. Pressure enters the float bowls via the vent tubes. As boost pressure builds in the intake, it also builds in the bowls, offsetting the pressure working to push fuel in through the needle and seat. Rising boost can act to slow or even stop fuel from entering the bowl, allowing it to run empty. By connecting the boost reference port on the regulator to the hat or carburetor box, the regulator will raise fuel pressure 1:1 with boost pressure, offsetting the rising air pressure and ensuring fuel continues to fill the bowl and feed the engine. The boost reference line on a blow through engine should reference positive pressure only (that is boost), not vacuum, and be connected to the carburetor box or hat rather than the intake manifold.
    [Show full text]
  • Engineering Study of the Rotary-Vee Engine Concept
    NASA Technical Memorandum 101995 SAE Paper No. 89-0332 Engineering Study of the Rotary-Vee Engine Concept Edward A. Willis National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio Timothy A. Bartrand Sverdrup Technology, Inc. NASA Lewis Research Center Group ~~ Cleveland, OhTo - and John E. Beard National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio Presented at the 1989 Annual Congress and Exposition sponsored by the Society of Automotive Engineers Detroit, Michigan, February 27-March 3, 1989 [NASA-Tbl- 103995) EIiGINEERING STUDY OF TfiE N89 -260C7 ROTARY-VEE ENGINE CONCEPT ;NASA, Lewis Research Center) 38 p CSCL 21E Unclas G~/07 0222716 ENGINEERING STUDY ON THE ROTARY-VEE ENGINE CONCEPT E.A. Willis National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio 44135 T.A. Bartrand Sverdrup Technology, Inc. NASA Lewis Research Center Group Cleveland, Ohio 44135 and J.E. Beard* National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio 44 135 ABSTRACT This paper provides a review of the applicable thermodynamic cycle and performance considerations when the rotary-vee mechanism is used as an internal combustion (I. C.) heat engine. Included is a simplified kinematic analysis and studies of the effects of design pa- rameters on the critical pressures, torques and parasitic losses. A discussion of the principal findings is presented. SUMMARY The rotary-vee is an unusual two-stroke internal combustion (1. C.) engine which incorpo- rates many small cylinders in a pair of rotating cylinder blocks. Several development projects have been launched since about 1970 to capture the perceived benefits of this arrangement.
    [Show full text]
  • 21Rg Series.Pdf
    It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' section on pages 2-5 of this booklet and to strictly adhere to the advice contained therein. Also, please study the entire contents of this instruction manual, so as to familiarize yourself with the controls and other features of the engine. Keep these instructions in a safe place so that you may readily refer to them whenever necessary. It is suggested that any instructions supplied with the vehicle, radio control equipment, etc., are accessible for checking at the same time. CONTENTS SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE 2-5 IF THE ENGINE FAILS TO START 18 INTRODUCTION, BASIC ENGINE PARTS 6 FINAL ADJUSTMENT 18-19 INSTALLATION OF THE ENNGINE 7-8 CARBURETOR CLEANLINESS 20 INSTALLATION OF THE CARBURETOR 8 BEFORE STARTING THE ENGINE 21 AIR CLEANER TYPE201 9-12 CARE AND MAINTENANCE 21-22 NOTES CONCERNING THE RECOIL STARTER 12 GUARANTEE 22 GLOWPLUG 13 O.S. GENUINE PARTS & ACCESSORIES 23 TOOLS, ACCESSORIES, etc. 13-14 ENGINE EXPLODED VIEW & ENGINE PARTS LIST 24-27 CARBURETOR CONTROLS, PRESSURIZED FUEL SYSTEM 15 CARBURETOR EXPLODED VIEW & PARTS LIST 28-29 STARTING THE ENGINE & RUNNING-IN('Breaking-in) 15-18 THREE VIEW DRAWING 30 1 SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE Remember that your engine is not a "toy", but a highly efficient internal- combustion machine whose power is capable of harming you, or others, if it is misused. As owner, you, alone, are responsible for the safe operation of your engine, so act with discretion and care at all times.
    [Show full text]