Radial piston pump with a roller plunger
First Claim
1. A radial piston pump, having a pump housing and at least one pump unit comprising a pump piston and a cylinder insert in which the pump piston is mounted such that the pump piston can be moved back and forth,wherein the pump unit is configured to be driven by means of a camshaft mounted in the pump housing,wherein a roller plunger comprising a plunger and a roller is arranged between the camshaft and the pump unit, wherein the plunger comprises a guide area configured to guide said plunger in a first slot-shaped guide groove of the cylinder insert, andwherein the roller is guided in a second slot-shaped guide groove of the cylinder insert.
2 Assignments
0 Petitions
Accused Products
Abstract
A radial piston pump has a pump housing (1) and at least one pump unit (2) with a pump piston (3) and a cylinder (4) wherein the pump piston (3) can be mounted such that it can be moved backwards and forth, wherein the pump unit (2) can be driven by means of a camshaft (5) mounted in the pump housing (1); and a roller plunger (6) is arranged between the camshaft (5) and the pump unit (2), consisting of a plunger (7) and a roller (8), wherein the plunger has a guide area (9) which is used to guide it a first slot-shaped guide groove (10) of the cylinder insert (4). The roller plunger (6) is thus reliably prevented from rotating inside the cylinder insert (4). The radial piston pumps are particularly suited for high rotational speeds occurring in high-pressure fuel pumps.
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Citations
19 Claims
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1. A radial piston pump, having a pump housing and at least one pump unit comprising a pump piston and a cylinder insert in which the pump piston is mounted such that the pump piston can be moved back and forth,
wherein the pump unit is configured to be driven by means of a camshaft mounted in the pump housing, wherein a roller plunger comprising a plunger and a roller is arranged between the camshaft and the pump unit, wherein the plunger comprises a guide area configured to guide said plunger in a first slot-shaped guide groove of the cylinder insert, and wherein the roller is guided in a second slot-shaped guide groove of the cylinder insert.
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10. A radial piston pump, comprising:
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a pump housing and at least one pump unit with a pump piston and a cylinder insert in which the pump piston is mounted such that the pump piston can be moved back and forth, a camshaft mounted in the pump housing for driving the pump unit, a roller plunger comprising a plunger and a roller, the roller plunger arranged between the camshaft and the pump unit, the plunger comprising a guide area configured to guide said plunger in a first slot-shaped guide groove of the cylinder insert, and the roller is guided in a second slot-shaped guide groove of the cylinder insert. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A radial piston pump, comprising:
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a pump housing and at least one pump unit with a pump piston and a cylinder insert in which the pump piston is mounted such that the pump piston can be moved back and forth, a camshaft mounted in the pump housing for driving the pump unit, a roller plunger comprising a plunger and a roller, the roller plunger arranged between the camshaft and the pump unit, the plunger comprising a guide area configured to guide said plunger in a first slot-shaped guide groove of the cylinder insert, and a return spring arranged between the cylinder insert and the roller plunger.
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Specification