Air Compressor Piston Trouble Shooting Guide
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Engine Components and Filters: Damage Profiles, Probable Causes and Prevention
ENGINE COMPONENTS AND FILTERS: DAMAGE PROFILES, PROBABLE CAUSES AND PREVENTION Technical Information AFTERMARKET Contents 1 Introduction 5 2 General topics 6 2.1 Engine wear caused by contamination 6 2.2 Fuel flooding 8 2.3 Hydraulic lock 10 2.4 Increased oil consumption 12 3 Top of the piston and piston ring belt 14 3.1 Hole burned through the top of the piston in gasoline and diesel engines 14 3.2 Melting at the top of the piston and the top land of a gasoline engine 16 3.3 Melting at the top of the piston and the top land of a diesel engine 18 3.4 Broken piston ring lands 20 3.5 Valve impacts at the top of the piston and piston hammering at the cylinder head 22 3.6 Cracks in the top of the piston 24 4 Piston skirt 26 4.1 Piston seizure on the thrust and opposite side (piston skirt area only) 26 4.2 Piston seizure on one side of the piston skirt 27 4.3 Diagonal piston seizure next to the pin bore 28 4.4 Asymmetrical wear pattern on the piston skirt 30 4.5 Piston seizure in the lower piston skirt area only 31 4.6 Heavy wear at the piston skirt with a rough, matte surface 32 4.7 Wear marks on one side of the piston skirt 33 5 Support – piston pin bushing 34 5.1 Seizure in the pin bore 34 5.2 Cratered piston wall in the pin boss area 35 6 Piston rings 36 6.1 Piston rings with burn marks and seizure marks on the 36 piston skirt 6.2 Damage to the ring belt due to fractured piston rings 37 6.3 Heavy wear of the piston ring grooves and piston rings 38 6.4 Heavy radial wear of the piston rings 39 7 Cylinder liners 40 7.1 Pitting on the outer -
Small Engine Parts and Operation
1 Small Engine Parts and Operation INTRODUCTION The small engines used in lawn mowers, garden tractors, chain saws, and other such machines are called internal combustion engines. In an internal combustion engine, fuel is burned inside the engine to produce power. The internal combustion engine produces mechanical energy directly by burning fuel. In contrast, in an external combustion engine, fuel is burned outside the engine. A steam engine and boiler is an example of an external combustion engine. The boiler burns fuel to produce steam, and the steam is used to power the engine. An external combustion engine, therefore, gets its power indirectly from a burning fuel. In this course, you’ll only be learning about small internal combustion engines. A “small engine” is generally defined as an engine that pro- duces less than 25 horsepower. In this study unit, we’ll look at the parts of a small gasoline engine and learn how these parts contribute to overall engine operation. A small engine is a lot simpler in design and function than the larger automobile engine. However, there are still a number of parts and systems that you must know about in order to understand how a small engine works. The most important things to remember are the four stages of engine operation. Memorize these four stages well, and everything else we talk about will fall right into place. Therefore, because the four stages of operation are so important, we’ll start our discussion with a quick review of them. We’ll also talk about the parts of an engine and how they fit into the four stages of operation. -
Poppet Valve
POPPET VALVE A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most applications a pressure differential helps to seal the valve and in some applications also open it. Other types Presta and Schrader valves used on tires are examples of poppet valves. The Presta valve has no spring and relies on a pressure differential for opening and closing while being inflated. Uses Poppet valves are used in most piston engines to open and close the intake and exhaust ports. Poppet valves are also used in many industrial process from controlling the flow of rocket fuel to controlling the flow of milk[[1]]. The poppet valve was also used in a limited fashion in steam engines, particularly steam locomotives. Most steam locomotives used slide valves or piston valves, but these designs, although mechanically simpler and very rugged, were significantly less efficient than the poppet valve. A number of designs of locomotive poppet valve system were tried, the most popular being the Italian Caprotti valve gear[[2]], the British Caprotti valve gear[[3]] (an improvement of the Italian one), the German Lentz rotary-cam valve gear, and two American versions by Franklin, their oscillating-cam valve gear and rotary-cam valve gear. They were used with some success, but they were less ruggedly reliable than traditional valve gear and did not see widespread adoption. In internal combustion engine poppet valve The valve is usually a flat disk of metal with a long rod known as the valve stem out one end. -
History of a Forgotten Engine Alex Cannella, News Editor
POWER PLAY History of a Forgotten Engine Alex Cannella, News Editor In 2017, there’s more variety to be found un- der the hood of a car than ever. Electric, hybrid and internal combustion engines all sit next to a range of trans- mission types, creating an ever-increasingly complex evolu- tionary web of technology choices for what we put into our automobiles. But every evolutionary tree has a few dead end branches that ended up never going anywhere. One such branch has an interesting and somewhat storied history, but it’s a history that’s been largely forgotten outside of columns describing quirky engineering marvels like this one. The sleeve-valve engine was an invention that came at the turn of the 20th century and saw scattered use between its inception and World War II. But afterwards, it fell into obscurity, outpaced (By Andy Dingley (scanner) - Scan from The Autocar (Ninth edition, circa 1919) Autocar Handbook, London: Iliffe & Sons., pp. p. 38,fig. 21, Public Domain, by the poppet valves we use in engines today that, ironically, https://commons.wikimedia.org/w/index.php?curid=8771152) it was initially developed to replace. Back when the sleeve-valve engine was first developed, through the economic downturn, and by the time the econ- the poppet valves in internal combustion engines were ex- omy was looking up again, poppet valve engines had caught tremely noisy contraptions, a concern that likely sounds fa- up to the sleeve-valve and were quickly becoming just as miliar to anyone in the automotive industry today. Charles quiet and efficient. -
DEUTZ Pose Also Implies Compliance with the Con- Original Parts Is Prescribed
Operation Manual 914 Safety guidelines / Accident prevention ● Please read and observe the information given in this Operation Manual. This will ● Unauthorized engine modifications will in- enable you to avoid accidents, preserve the validate any liability claims against the manu- manufacturer’s warranty and maintain the facturer for resultant damage. engine in peak operating condition. Manipulations of the injection and regulating system may also influence the performance ● This engine has been built exclusively for of the engine, and its emissions. Adherence the application specified in the scope of to legislation on pollution cannot be guaran- supply, as described by the equipment manu- teed under such conditions. facturer and is to be used only for the intended purpose. Any use exceeding that ● Do not change, convert or adjust the cooling scope is considered to be contrary to the air intake area to the blower. intended purpose. The manufacturer will The manufacturer shall not be held respon- not assume responsibility for any damage sible for any damage which results from resulting therefrom. The risks involved are such work. to be borne solely by the user. ● When carrying out maintenance/repair op- ● Use in accordance with the intended pur- erations on the engine, the use of DEUTZ pose also implies compliance with the con- original parts is prescribed. These are spe- ditions laid down by the manufacturer for cially designed for your engine and guaran- operation, maintenance and servicing. The tee perfect operation. engine should only be operated by person- Non-compliance results in the expiry of the nel trained in its use and the hazards in- warranty! volved. -
High Pressure Ratio Intercooled Turboprop Study
E AMEICA SOCIEY O MECAICA EGIEES 92-GT-405 4 E. 4 S., ew Yok, .Y. 00 h St hll nt b rpnbl fr ttnt r pnn dvnd In ppr r n d n t tn f th St r f t vn r Stn, r prntd In t pbltn. n rnt nl f th ppr pblhd n n ASME rnl. pr r vlbl fr ASME fr fftn nth ftr th tn. rntd n USA Copyright © 1992 by ASME ig essue aio Iecooe uoo Suy C. OGES Downloaded from http://asmedigitalcollection.asme.org/GT/proceedings-pdf/GT1992/78941/V002T02A028/2401669/v002t02a028-92-gt-405.pdf by guest on 23 September 2021 Sundstrand Power Systems San Diego, CA ASAC NOMENCLATURE High altitude long endurance unmanned aircraft impose KFT Altitude Thousands Feet unique contraints on candidate engine propulsion systems and HP Horsepower types. Piston, rotary and gas turbine engines have been proposed for such special applications. Of prime importance is the HIPIT High Pressure Intercooled Turbine requirement for maximum thermal efficiency (minimum specific Mn Flight Mach Number fuel consumption) with minimum waste heat rejection. Engine weight, although secondary to fuel economy, must be evaluated Mls Inducer Mach Number when comparing various engine candidates. Weight can be Specific Speed (Dimensionless) minimized by either high degrees of turbocharging with the Ns piston and rotary engines, or by the high power density Exponent capabilities of the gas turbine. pps Airflow The design characteristics and features of a conceptual high SFC Specific Fuel Consumption pressure ratio intercooled turboprop are discussed. The intended application would be for long endurance aircraft flying TIT Turbine Inlet Temperature °F at an altitude of 60,000 ft.(18,300 m). -
Thermodynamic Benefits of Opposed-Piston Two- 2011-01-2216 Published Stroke Engines 09/13/2011
Gratis copy for Randy Herold Copyright 2011 SAE International E-mailing, copying and internet posting are prohibited Downloaded Thursday, August 18, 2011 12:14:28 PM Thermodynamic Benefits of Opposed-Piston Two- 2011-01-2216 Published Stroke Engines 09/13/2011 Randy E. Herold, Michael H. Wahl, Gerhard Regner and James U. Lemke Achates Power, Inc. David E. Foster Univ. of Wisconsin - Madison Copyright © 2011 SAE International doi:10.4271/2011-01-2216 piston two-stroke engine has inherently lower peak in- ABSTRACT cylinder temperatures than the four-stroke engine, lower A detailed thermodynamic analysis was performed to intake pressure was required to meet the NOx emissions demonstrate the fundamental efficiency advantage of an constraint and as a result lower pumping work was needed. opposed-piston two-stroke engine over a standard four-stroke At the simulated condition considered, the opposed-piston engine. Three engine configurations were considered: a two-stroke engine had approximately 9.0% lower brake- baseline six-cylinder four-stroke engine, a hypothetical three- specific fuel consumption than the four-stroke engine. cylinder opposed-piston four-stroke engine, and a three- cylinder opposed-piston two-stroke engine. The bore and INTRODUCTION stroke per piston were held constant for all engine Opposed-piston two-stroke engines were conceived in the configurations to minimize any potential differences in 1800's in Europe and subsequently developed in multiple friction. The closed-cycle performance of the engine countries for a wide variety of applications including aircraft, configurations were compared using a custom analysis tool ships, tanks, trucks, and locomotives and maintained their that allowed the sources of thermal efficiency differences to presence throughout most of the twentieth century [1,2,3,4,5]. -
Analysis of the Influences of Piston Crankshaft Offset on Piston Secondary Movements Yan Hongwei*, Yang Jin and Zhang Baocheng
Send Orders for Reprints to [email protected] The Open Mechanical Engineering Journal, 2015, 9, 933-937 933 Open Access Analysis of the Influences of Piston Crankshaft Offset on Piston Secondary Movements Yan Hongwei*, Yang Jin and Zhang Baocheng School of Mechanical and Power Engineering, North University of China, Taiyuan, Shanxi, 030051, P.R. China Abstract: This paper takes dynamics analysis on the piston and the dynamic lubrication theory on the skirt and the ring of piston as the basis. Using AVL Glide software, through the establishment of the analysis model of the piston secondary movements, this study focuses on the effects of the crankshaft bias on piston secondary movements’ characteristics. This paper takes 5 different offsets, by comparing the piston lateral displacement, transverse movement speed, transverse acceleration, swinging angle, swing angular velocity and angular acceleration, finds out the relationships between crank offset value and the piston “slap”, piston impact energy and piston skirt friction loss, thus, provides the basis for the design of internal combustion engines. Keywords: Crank offset, piston, piston impact energy, secondary movement. 1. INTRODUCTION liner, piston stiffness matrices’ calculation, the confirmation of the mass of piston group, confirmation of inertia and data The piston secondary movements are some small preparation [6]. Other needed data mainly includes movements exist in the processes of the reciprocating work parameters of the piston and cylinder liner piston structure of internal combustion engines. They specifically refer to, size, the mass of all parts of the group and inertia and under the pressure of the gas deflagration, inertia force, the crankshaft connecting rod size [7]. -
Technical Info
ENGINE (4G6) – GENERAL 1-1 SECTION 1 ENGINE CONTENTS Engine (4G6)............................................1-1 Fuel System.............................................1-7 General information................................1-1 1. Fuel tank ........................................................1-8 1. Major specifications .......................................1-1 Control System.......................................1-9 2. Engine Performance Curve ...........................1-2 1. Fuel injection control ....................................1-11 Base Engine ............................................1-2 2. Idle speed control.........................................1-11 1. Timing belt cover............................................1-2 3. Ignition timing and distribution 2. Piston.............................................................1-3 control..........................................................1-12 3. Valve spring ...................................................1-3 4. Other controls ..............................................1-12 4. Delivery pipe ..................................................1-4 5. Diagnosis system.........................................1-12 Cooling Equipment.................................1-5 Emission Control System ....................1-13 Intake and Exhaust Equipment .............1-5 Mount .....................................................1-14 1. Air intake system............................................1-5 Engine (4G6) General information The 4G63-T/C engine of the Lancer Evolution-VIII -
The Basics of Four-Stroke Engines
Youth Explore Trades Skills Automotive Service Technician The Basics of Four-Stroke Engines Description Students will be introduced to basic engine parts, theory and terminology. Understanding how an engine works and knowing some key related parts and terminology is important for working on any vehicle. The information is broken down into three major sections: “Basic Engine Parts,” “Basic Engine Terminology” and “Basic Four-Stroke Cycle Engine Theory.“ Lesson Outcomes The student will be able to: • Identify and explain the function of basic engine parts • Identify and explain basic engine terminology • Identify the four piston strokes of a four-stroke cycle engine • Describe the action and function of each piston stroke Assumptions • The students will have little or no prior knowledge of how engines work, terminology or parts. • The teacher is familiar with the information being taught. Note: This information is given as a guide to the minimum amount of material to be covered for a basic understanding of the engine and how it works. Much more can be added as the instructor sees fit. Terminology Valve train: all the parts that are used to open and close valves. This may include parts such as valve springs, keepers, lifters, cam followers, shims, rockers and push rods. Any other terminology used will be explained as required during the activities. Estimated time 90–120 minutes (including a question and answer session) Recommended number of students 20, based on the BC Technology Educators’ Best Practice Guide Facilities A classroom, computer lab or workshop with tables and chairs sufficient for 20 students. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License unless otherwise indicated. -
AC 23.909-1- Installation of Turbochargers in Small Airplanes
0 Advisory U.S. Department ( of Transportation Federal Aviation Circular Administration Subject: INSTALLATION OF TURBOCHARGERS Date: 2/3/86 AC No: 23. 909- 1 IN SMALL AIRPLANES WITH Initiated by: ACE- 100 Change: RECIPROCATING ENG INES 1. PURPOSE. This advisory circular (AC) provides information and gu idance concerning an acceptable means, but not the only means , of showing comp I iance with Part 23 of the Federal Aviation Regulations (FAR) , applicable to approval procedures and installation of turbochargers in smal I a irplanes. Accordingly, this material is neither mandatory nor regulatory in nature and does not constitute a regulation . 2. RELATED FAR SECTIONS . Section 23 .909 and applicable sections of Part 33 of the FAR (Part 3 of the Civ i I Air Regulations (CAR) does not have a corresponding requirement). 3. BACKGROUND . ( a. Exhaust gas- driven turbochargers are avai I able for use with reciprocat ing engines to: (1) Increase takeoff and maximum continuous power avai I able at sea leve l and a ltitude (turbosupercharged - boosted) . (2) Maintain maximum continuous or cruise powers above sea level altitude (turbonormal ized) . (3) Provtde a source of a ir to pressurize the cabin . NOTE : The word turbocharger wi I I be used throughout this AC to include both turbosupercharged boosted and tur bonormal ized engines . b. Section 23 .909 contains requirements for approval of turbochargers on smal I airp lanes. Th is regulation refers to des ign standards required in Part 33 of the FAR. Part 3 of the CAR does not speciflcal ly cover the approva l requirements for the insta l lation of a turbocharged engine in an airplane . -
Intercooler Pipe Upgrage Kit (Oem Replacement) 2011 - 2016 6.7L Ford | 122011
INTERCOOLER PIPE UPGRAGE KIT (OEM REPLACEMENT) 2011 - 2016 6.7L FORD | 122011 INSTALLATION GUIDE HS-MOTORSPORTS.COMHS-MOTORSPORTS.COM 1 INTERCOOLER PIPE UPGRADE KIT 6.7L FORD TROUBLESHOOTING Please read and understand all installation instructions before proceeding with the installation. If you have questions during the installation of this product, please contact H&S Motorsports support at [email protected] or (855)623-4450. INCLUDED PARTS 1 - HSM Billet Aluminum Throttle Coupler 1 - 5-Ply Stainless-Reinforced Hose Replacement 2 - Stainless T-bolt Clamps STEP 1 Disconnect the vehicle batteries. Disconnect the intake air temperature sensor connector and clip from the back side of the factory intercooler pipe. Disconnect the clip holding intake air temperature sensor wiring to the fan shroud. 2 2011-2016 6.7L FORD INTERCOOLER PIPE UPGRADE (OEM REPL.) INTERCOOLER PIPE UPGRADE KIT STEP 2 6.7L FORD Remove the bolt holding the power steering reservoir to the fan shroud. Pull the power steering reservoir up to disconnect it from the fan shroud and just let the reservoir swing free to temporarily provide easier access to the lower intercooler pipe connection point (on intercooler). Loosen the lower factory t-bolt clamp (at intercooler). STEP 3 With a pick tool or something similar, carefully remove the metal locking clip from the factory plastic throttle body coupler. Be careful not to damage the ring as it will be re-used later. With everything disconnected, carefully remove the entire cold-side factory intercooler pipe assembly from the vehicle. HS-MOTORSPORTS.COM 3 STEP 4 Twist carefully (1/4 turn counter-clockwise) to unlock and remove the intake air temperature sensor from the factory plastic throttle body coupler.