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  2. Crankcase ventilation system - Wikipedia

    en.wikipedia.org/wiki/Crankcase_ventilation_system

    Another type used of the pressure suction type was used on VW Porsche air cooled engines whereby the front crankcase pulley has a reverse screw built into it which brings air into the engine and air escapes the crankcase with the road draft tube. This system works very well in getting rid of crankcase vapors which are harmful to the engine.

  3. Crankcase dilution - Wikipedia

    en.wikipedia.org/wiki/Crankcase_dilution

    Crankcase dilution occurs when the fuel oil from the engine gets into the lube oil of the engine. This can be caused by the walls being wetted due to the fuel condensing in the cylinder. If the engine is cold, or there is an excess amount of cooling around the cylinder, [ 1 ] the fuel oil will condense and have a higher chance to end up in the ...

  4. Theorem of corresponding states - Wikipedia

    en.wikipedia.org/wiki/Theorem_of_corresponding...

    According to van der Waals, the theorem of corresponding states (or principle/law of corresponding states) indicates that all fluids, when compared at the same reduced temperature and reduced pressure, have approximately the same compressibility factor and all deviate from ideal gas behavior to about the same degree. [1] [2]

  5. Blowoff valve - Wikipedia

    en.wikipedia.org/wiki/Blowoff_valve

    A blowoff valve (also called dump valve or compressor bypass valve) is a pressure release system present in most petrol turbocharged engines. Blowoff valves are used to reduce pressure in the intake system as the throttle is closed, thus preventing compressor surge. [1]

  6. Wills Ring - Wikipedia

    en.wikipedia.org/wiki/Wills_Ring

    A Wills Ring is an O-ring in the form of a hollow metallic tube. They are pressurised internally by gas pressure [1] The advantages of this construction are that the rings can seal against a wide range of conditions. [2] Metallic construction makes them robust against high or low temperatures and chemical attack.

  7. Piston ring - Wikipedia

    en.wikipedia.org/wiki/Piston_ring

    A piston ring is a metallic split ring that is attached to the outer diameter of a piston in an internal combustion engine or steam engine. The main functions of piston rings in engines are: Sealing the combustion chamber so that there is minimal loss of gases to the crank case.

  8. Vapor lock - Wikipedia

    en.wikipedia.org/wiki/Vapor_lock

    Vapor lock is a problem caused by liquid fuel changing state to vapor while still in the fuel delivery system of gasoline-fueled internal combustion engines.This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor or fuel injection system, resulting in transient loss of power or complete stalling.

  9. Ford Power Stroke engine - Wikipedia

    en.wikipedia.org/wiki/Ford_Power_Stroke_engine

    In the late model engines, Ford also redesigned the HPO stand pipes and dummy plugs in the HPO manifold, using poor-quality O-rings. These O-rings were prone to failure causing a HPO leak, and eventually a no-start condition. Ford addressed this concern with updated Viton O-ring washers fixing the issue.