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:
Sep. 17, 1985
Filed:
Dec. 19, 1983
Hisashi Kodama, Nagoya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A hydraulic lifter for an internal combustion engine which includes a cylindrical body installed horizontally or nearly horizontally, having an oil inlet port on the surface of the body; a plunger slidably inserted into the body; a push rod seat inserted into one end of the body in contact with the plunger, having an oil outlet port; an oil reservoir formed by the plunger and a push rod seat; a pressure chamber formed by the internal wall of the body and the end face of the plunger in the other end of the body; a hole for the oil to flow in and out of the reservoir, provided in the vicinity of the junction between the plunger and the push rod seat; a first groove provided on the other surface of the plunger forming at least one turn around the plunger, to connect the oil inlet port mounted on the body with the hole for the oil to flow in and out of the reservoir; and a second groove provided on the outer surface of the push rod seat forming at least one turn around the push rod seat, to connect the hole for the oil to flow in and out of the reservoir with the oil outlet port mounted on the push rod seat.