The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1999
Filed:
Aug. 24, 1998
Mark Freeland, Farmington Hills, MI (US);
Other;
Abstract
A hydraulic lash adjuster mechanism for an internal combustion engine, the adjuster having a body with a bore formed therein, a plunger slidingly received within the bore, and a high pressure chamber formed between the bottom of the bore and the plunger. The plunger has a fluid chamber formed therein to receive engine fluid through an inlet opening and is in communication with a first check valve mechanism for regulating the flow of fluid from the fluid chamber through a valve opening into a high pressure chamber. A leak path allows fluid to escape from the high pressure chamber due to increased force on the plunger. The high pressure chamber is in communication with a second check valve mechanism for allowing fluid to leak from the high pressure chamber at an increased rate in response to increased force on the plunger.