Sealed-type lash adjuster

Details Sealed-type lash adjuster Sealed-type lash adjuster

1987-06-11

1989-06-20

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9058, 123 9046, F01L 124

Patent

active

048401510

ABSTRACT:
A sealed-type lash adjuster includes a cylindrical body; a plunger received in the body and forming a chamber with the bottom of the body; and a diaphragm mounted between an open end of the body and the plunger, and forming a reservoir for hydraulic oil to be supplied to the chamber. The adjuster also includes a holder having a bushing for receiving the body with the bottom of the body engageable with a valve rocker, and the diaphragm and the open end of the body generally facing away from the combustion chamber, a reservoir for storing fluid lubricant, and a conduit for conducting fluid lubricant from the reservoir to an interior annular channel in the bushing. At least part of the thickness of the diaphragm is formed of a fluorine-bonded layer extending over the entirety of the diaphragm.

REFERENCES:
patent: 2833257 (1958-05-01), Lengnick
patent: 3170446 (1965-02-01), Dolza
patent: 4656978 (1987-04-01), Deuring
patent: 4739734 (1988-04-01), Honda et al.

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