Search results
Results From The WOW.Com Content Network
A second function of the PCV valve is to act as a flame arrester and to prevent positive pressure from the intake system from entering the crankcase. This can happen on turbocharged engines or when a backfire takes place, and the positive pressure could damage the crankcase seals and gaskets, or even cause a crankcase explosion. The PCV valve ...
The positive crankcase ventilation (PCV) system utilized a plastic oil separator box that was vented directly to the block itself; the breather hose and PCV valve hoses attached to the box, and connected to the induction system. Later engines featured a PCV system that was molded to the cylinder head valve cover.
A supercharger is a "forced induction" system which uses a compressor powered by the shaft of the engine which forces air through the valves of the engine to achieve higher flow. When these systems are employed the maximum absolute pressure at the inlet valve is typically around 2 times atmospheric pressure or more. A cutaway of a turbocharger
A crankcase is the housing in a piston engine that surrounds the crankshaft. In most modern engines, the crankcase is integrated into the engine block. Two-stroke engines typically use a crankcase-compression design, resulting in the fuel/air mixture passing through the crankcase before entering the cylinder(s). This design of the engine does ...
Thus, a MAP sensor will always read 100 kPa more than a boost sensor measuring the same conditions. A MAP sensor will never display a negative reading because it is measuring absolute pressure, where zero is the total absence of pressure. Vacuum is measured as a negative pressure relative to normal atmospheric pressure. Vacuum-Boost sensors can ...
An indicator diagram is a chart used to measure the thermal, or cylinder, performance of reciprocating steam and internal combustion engines and compressors. [1] An indicator chart records the pressure in the cylinder versus the volume swept by the piston, throughout the two or four strokes of the piston which constitute the engine, or ...
The cylinder heads are integrated into the engine block, but the crankcase is separate. [2] Typical 1930-1960 flathead engine with integrated crankcase. The cylinder head is tipped upwards for illustrative purposes. An engine where all the cylinders share a common block is called a monobloc engine. Most modern engines use a monobloc design, and ...
Another view of the engine Close up view on cylinder. The Kharkiv model V-2 (Russian: В-2) was a Soviet diesel tank V-12 engine, the V angle at 60°, with dual overhead camshafts per bank, four valves per cylinder opened by bucket-style followers and direct fuel injection.