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:
Dec. 18, 1984
Filed:
Feb. 17, 1983
John A Kimberley, East Granby, CT (US);
John B Cavanaugh, West Springfield, MA (US);
AMBAC Industries, Incorporated, Springfield, MA (US);
Abstract
An improved arrangement for mounting an injection barrel in the mounting bore of a fuel injection pump housing and maintaining the integrity of a fluid seal therebetween. A pumping chamber is defined in each injection barrel. Each injection barrel includes a pair of axially spaced annular seats in the external periphery thereof, preferably beyond the axially opposite ends of the pumping chamber. A respective annular seal is seated in each of the respective seats, and when uncompressed, projects radially beyond the barrel periphery. Each mounting bore includes a pair of chamfered surfaces formed at axially spaced locations, each chamfered surface having a respective diameter sufficiently small for compressively engaging a respective seal when the barrel is mounted. The included angle of each of the chamfered surfaces is relatively small to allow axial adjustment of the mounted position of the injection barrel. The diameter of the mounting bore between the surface of the pump housing and the axially innermost chamfered surface of the pair is always greater than the uncompressed diameter of the axially innermost seal to prevent shaving.