Valve lifter for an internal combustion engine

Details Valve lifter for an internal combustion engine Valve lifter for an internal combustion engine

F - Mech Eng,Light,Heat,Weapons

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F01L 1/24 (2006.01) F01L 1/25 (2006.01)

Patent

CA 1329523

ABSTRACT A valve lifter for an internal combustion engine, comprises an outer housing have a first chamber, a piston within the first chamber, a second chamber defined in the piston, a cylinder engaging on the piston, the cylinder defining a third chamber. The piston and the cylinder are connected by a compression spring and together define an annular bleed gap between them. A check valve between the second and the third chamber permits liquid flow in the direction from the second to third chamber, and there is a transfer port between the first and second chambers. The first, second and third chambers, the bleed gap and the transfer port are all filled with an incompressible liquid, forming a closed space completely sealed off to the outside by means of a liquid sealing wall, the wall, at least in the area adjacent to the first chamber, being configured as an elastic and flexible diaphragm.

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