Radial piston fuel supply pump

Details Radial piston fuel supply pump Radial piston fuel supply pump

2011-08-30

2011-08-30

Cuff, Michael (Department: 3741)

Pumps

Three or more cylinders arranged in parallel, radial, or...

Radial cylinders

C417S521000, C092S13000R, C092S13000R

Reexamination Certificate

active

08007251

ABSTRACT:
A high pressure radial piston fuel pump is featured having an hydraulic head with two or three individual radial pumping pistons and associated pumping chambers, annularly spaced around a cavity in the head where a rotating eccentric drive member with associated actuation ring are situated. A rolling interaction is provided between the actuation ring and the inner ends of the pistons for intermittent actuation. Relative rotation is provided between the actuation ring and the drive member. Respective inlet and outlet valve trains are situated in the head. The head is attachable to a removable mounting plate, and the drive member is rigidly carried by a drive shaft that is supported by two bushings, one located in the mounting plate and the other in the hydraulic head.

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