| 摘要 |
A hydraulic lifter incorporated into a rocker arm of a valve train in an internal combustion engine includes a cylinder formed in the rocker arm, a plunger arranged slidably in the cylinder, a valve seat member dividing an inside portion of the cylinder into a pressure chamber and a reservoir chamber for working fluid, a check valve allowing the working fluid to flow from the reservoir chamber into the pressure chamber, a spring positioned within the pressure chamber to bias the plunger, and a passage for supplying the working fluid to the reservoir chamber.
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