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:
Jul. 30, 1996
Filed:
Nov. 12, 1993
Kenneth H Klopfer, East Hartland, CT (US);
Stanadyne Automotive Corp., Windsor, CT (US);
Abstract
A rotary distributor fuel injection pump with a drive shaft coupled to a pump rotor by a radially offset and axially extending drive pin with a cylindrical head received within a radial slot in the rotor; a coaxial throughbore in the rotor providing a valve bore; a valve member in the valve bore axially shiftable to an open position by a compression spring; an electromagnet with an armature plate fixed to one end of the valve member and a stator operable, when energized, to axially shift the valve member to its closed position; a stop plate on the outer end of the rotor having an outer end face engageable by the armature plate, the end face having a plurality of lands and grooves to hydraulically dampen the axial movement of the valve member to its open position when the stator is deenergized; the armature plate having a hub received within an opening in the stop plate to couple the armature plate and valve member to the rotor; an annular thrust washer and needle bearing between the rotor and a distributor head; the distributor head having a rotor support sleeve with an inner annular cantilever section thermally coupled to the rotor; the rotor having distributor and balancing bores, each with an inlet port equidistant between he radial axes of adjacent pumping plunger bores.