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:
Apr. 17, 2001
Filed:
Jul. 02, 1999
David C. Jay, Vähäkyrö, FI;
Wartsila NSD Oy AB, Helsinki, FI;
Abstract
An integrated pump and tappet unit for an internal combustion engine, includes a pump and tappet unit body composed of a one-piece casting, a tappet fitted in the body to be driven by the engine, a tappet arm connected to the tappet, and a piston operationally connected to the tappet through the tappet arm and arranged to pump fuel from a fuel chamber in the pump and tappet body under high pressure to be fed to one or more cylinders of the engine. A flange is fixed to the pump and tappet body and the tappet arm extends through the flange, so that the piston and the tappet are at opposite respective sides of the flange, and the flange is in sealing relationship with the tappet arm so that passage of fuel from the piston side of the flange to the tappet side of the flange is inhibited.