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:
May. 12, 1998
Filed:
Sep. 12, 1995
Robert D Straub, Lowell, MI (US);
Richard Frederic Teerman, Wyoming, MI (US);
Thomas M Stegink, Kalamazoo, MI (US);
Daniel B Ogren, Hudsonville, MI (US);
Deisel Technology Company, Wyoming, MI (US);
Abstract
A pump for a fuel injection system, the pump primarily including a pump body having a pumping chamber and a pump body end portion, a control valve disposed in a control valve chamber, a reciprocatable plunger, and a cylindrical sleeve having first and second end portions. The first end portion of the sleeve interfits with the pump body end portion. The second end portion of the sleeve slidably interfits with a cam follower assembly for allowing the cam follower assembly to drive the plunger. The plunger is reciprocated with respect to the sleeve over a stroke range between an extended position and a retracted position. A plunger spring biases the plunger to the retracted position. The pump body end portion is press-fit into the first end portion of the sleeve, and sufficiently induces compressive forces in the pump body for acting on the pumping chamber to oppose pumping chamber expansive forces.