Valve Engines

Some articles on valve, valve engine, engine, engines, valve engines, valves:

Sleeve Valve - Advantages/disadvantages - Disadvantages
... A number of disadvantages plague the single sleeve valve Perfect, even very good, sealing is difficult to achieve ... In a poppet valve engine, the piston possesses piston rings (at least three and sometimes as many as eight) which form a seal with the cylinder bore ... type of "breaking in" is not possible on a sleeve-valve engine, however, because the piston and sleeve move in different directions and in some systems even rotate in relation to one another ...
Combustion Chamber - Internal Combustion Engine - Petrol or Gasoline Engine
... A reciprocating engine is often designed so that the moving pistons are flush with the top of the cylinder block at top dead centre ... and commonly contains a single intake valve and a single exhaust valve ... Some engines use a dished piston and in this case the combustion chamber can be considered as partly within the cylinder ...
Ford Modular Engine - 4.6 L - 4-valve
... The 4-valve DOHC version of the Modular engine was introduced in the 1993 Lincoln Mark VIII as the 4.6 L Four-Cam V8 ... Lincoln marketed the engine under the name InTech after 1995 ... The 1993–1998 4-valve engines featured cylinder heads with two intake ports per cylinder (split-port) and variable runner length intake manifolds with either vacuum or electrically activated intake manifold runner ...
Sleeve Valve - History - Burt-McCollum
... The Burt-McCollum sleeve valve consisted of a single sleeve, which was given a combination of up-and-down and partial rotary motion ... The greatest success for single sleeve valves (SSV) was in Bristol's large aircraft engines and they were also used in the Napier Sabre and Rolls-Royce Eagle engines ... high oil consumption associated with the Knight double sleeve valve ...

Famous quotes containing the word engines:

    America is like one of those old-fashioned six-cylinder truck engines that can be missing two sparkplugs and have a broken flywheel and have a crankshaft that’s 5000 millimeters off fitting properly, and two bad ball-bearings, and still runs. We’re in that kind of situation. We can have substantial parts of the population committing suicide, and still run and look fairly good.
    Thomas McGuane (b. 1939)