High-pressure pump, in particular for a fuel injection...

Details High-pressure pump, in particular for a fuel injection... High-pressure pump, in particular for a fuel injection...

2007-12-18

2007-12-18

Leslie, Michael (Department: 3745)

Expansible chamber devices

Abutment connection between working member and power...

C092S072000

Reexamination Certificate

active

10579846

ABSTRACT:
A high-pressure pump has at least one pump element including a pump piston defining a work chamber and driven at least indirectly by a drive shaft in a reciprocating motion, counter to the force of a restoring spring. The pump piston is braced on the drive shaft at least indirectly via a sleevelike tappet, and the restoring spring engages at least the pump piston. A support element in the tappet braces the pump piston toward the drive shaft and is braced at least indirectly on the drive shaft. The restoring spring, via a spring plate, engages the pump piston and the tappet. The spring plate is elastically deformable in the direction of motion of the pump piston in such a way that as a result of its elastic deformation, deviations in the position of its contact faces on the pump piston and on the tappet are compensated for.

REFERENCES:
patent: 5567134 (1996-10-01), Inoue
patent: 5752430 (1998-05-01), Kawajiri et al.
patent: 6951165 (2005-10-01), Kuhn et al.
patent: 7011012 (2006-03-01), Hartsleben et al.
patent: 195 22 306 (1996-01-01), None
patent: 101 57 076 (2003-05-01), None
patent: 2000-145572 (2000-05-01), None
patent: 2002-31017 (2002-01-01), None

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