| 摘要 |
A hydraulic lash adjuster ( 11 ) for an internal combustion engine, and an improved method of assembly of such a lash adjuster. The lash adjuster ( 11 ) is of the type having a body ( 13 ), a plunger ( 15 ), and a check valve assembly ( 17 ). In accordance with one aspect of the invention, the check valve assembly comprises a cartridge ( 17 A; 17 B) comprising a member ( 27;41 ) separate from the plunger ( 15 ) and defining a valve seat ( 27 S; 41 S). The check valve cartridge is capable of being assembled and tested for compliance with a predetermined relationship of flow versus pressure differential, prior to assembly into the plunger ( 15 ). In accordance with the improved method of assembly, a plurality of different bodies ( 13 A; 13 B) and plungers ( 15 A; 15 B; 15 C; 15 D) is provided, as well as a plurality of different, interchangeable check valve cartridges ( 17 A; 17 B), and the assembly operator selects a body, a plunger, and a cartridge to provide an assembled lash adjuster having the predetermined, desired operating parameters.
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