How does a water sleeve valve work?
Inline sleeve valve have an inlet section which allows upstream media to flow into an outer annular area. The flow then takes a 90° turn through the sleeve and collides with flow from the opposite side dissipating the energy. The flow then travels downstream through an exit spool on the downstream end.
What is a wet sleeve engine?
Wet sleeves (or liners) have engine coolant directly in contact with their outer surface and various methods are used to contain coolant properly within the engine. Dry liners, as the name implies, are pushed into the bore of a block (the Yanmar 6LY 315 & 350 are examples) and have no contact with the engine coolant.
Can you bore a sleeve?
Yes. All sleeves are supplied with a semi-finish bore. The piston will not fit until you have bored the sleeve to the correct piston clearance. Hone the bore to the clearance recommended by the piston manufacturer.
What kind of engine has a sleeve valve?
The sleeve valve is a type of valve mechanism for piston engines, distinct from the usual poppet valve. Sleeve valve engines saw use in a number of pre- World War II luxury cars and in the United States in the Willys-Knight car and light truck. They subsequently fell from use due to advances in poppet-valve technology,…
How does combustion stroke work in sleeve valve engine?
Combustion stroke: ignition forces the piston back down into the cylinder; as the piston goes to bottom-dead-center, the liner (or sleeve) shifts to align its cutout openings with the cylinder’s exhaust ports
Why do you need a sleeve valve system?
No springs are involved in the sleeve valve system, therefore the power needed to operate the valve remains largely constant with the engine’s RPM, meaning that the system can be used at very high speeds with no penalty for doing so.
What did sleeve valve engines do in World War 2?
The sleeve-valve engine, which has been used on both automobiles and airplanes, powered speedy British fighters such as the Hawker Typhoon and Hawker Tempest. With their brute horsepower, they helped the Allies control the skies, provide air support for ground forces and eventually win the war.