Valve arrangement

Patent metadata

Field	Value
Publication number	US-9719472-B2
Application number	US-201414767989-A
Country	US
Kind code	B2
Filing date	Sep 29, 2014
Priority date	Oct 15, 2013
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A valve arrangement for a high pressure pump includes a pump housing with a depression, and a valve housing configured to be inserted in the depression, and a clamping disc. The valve housing has at least one radial projection with a first axial boundary surface and a second axial boundary surface arranged opposite the first axial boundary surface, wherein the clamping disc extends radially over the radial projection of the valve housing and has a third axial boundary surface that corresponds with the second axial boundary surface of the valve housing. On the circumferential side, the clamping disc has a thread that can be screwed into a thread on the inner side of the depression to brace the valve housing onto the first boundary surface.

First claim

What is claimed is:

1. A valve arrangement for a high pressure pump, the valve arrangement comprising:
a pump housing having a depression,
a valve housing with a central through bore, the valve housing configured to be inserted into the depression, and
a clamping disk with a central through bore matching the central through bore of the valve housing in diameter,
wherein the valve housing has at least one radial projection with a first axial bounding face and a second axial bounding face arranged opposite the first axial bounding face,
wherein the clamping disk extends radially over the at least one radial projection of the valve housing and has a third axial bounding face that rests flush on the second axial bounding face of the valve housing, and
wherein the clamping disk includes a thread on a circumferential side of the clamping disk, wherein the thread is configured to be screwed into a thread on an inner side of the depression to secure the valve housing in the pump housing via the clamping disk.

2. The valve arrangement of claim 1 , wherein the first axial bounding face of the valve housing rests on a first shoulder of the depression.

3. The valve arrangement of claim 2 , wherein the depression in the pump housing includes a second shoulder configured to receive a cylindrical section of the valve housing.

4. The valve arrangement of claim 1 , wherein the valve housing has an annular ring groove arranged on a circumferential side in a cylindrical section,
wherein a sealing ring is arranged in the annular ring groove.

5. The valve arrangement of claim 4 , wherein a supporting ring is also arranged in the annular ring groove.

6. The valve arrangement of claim 1 , wherein the second axial bounding face of the valve housing which faces the clamping disk has a shoulder that extends axially toward the clamping disk and corresponds with a shoulder on the third axial bounding face on the clamping disk, such that the valve housing is centered on the clamping disk.

7. The valve arrangement of claim 1 , wherein the clamping disk has a fourth axial bounding face arranged opposite the third axial bounding face and having a receiving profile corresponding to a tool.

8. An injection system, comprising:
a common rail, and
a high pressure pump having a valve arrangement comprising:
a pump housing having a depression,
a valve housing with a central through bore, the valve housing configured to be inserted into the depression, and
a clamping disk with a central through bore matching the central through bore of the valve housing in diameter,
wherein the valve housing has at least one radial projection with a first axial bounding face and a second axial bounding face arranged opposite the first axial bounding face,
wherein the clamping disk extends radially over the at least one radial projection of the valve housing and has a third axial bounding face that rests flush on the second axial bounding face of the valve housing, and
wherein the clamping disk includes a thread on a circumferential side of the clamping disk, wherein the thread is configured to be screwed into a thread on an inner side of the depression to secure the valve housing in the pump housing via the clamping disk.

9. The injection system of claim 8 , wherein the first axial bounding face of the valve housing rests on a first shoulder of the depression.

10. The injection system of claim 9 , wherein the depression in the pump housing includes a second shoulder configured to receive a cylindrical section of the valve housing.

11. The injection system of claim 8 , wherein the valve housing has an annular ring groove arranged on a circumferential side in a cylindrical section,
wherein a sealing ring is arranged in the annular ring groove.

12. The injection system of claim 11 , wherein a supporting ring is also arranged in the annular ring groove.

13. The injection system of claim 8 , wherein the second axial bounding face of the valve housing which faces the clamping disk has a shoulder that extends axially toward the clamping disk and corresponds with a shoulder on the third axial bounding face on the clamping disk, such that the valve housing is centered on the clamping disk.

14. The injection system of claim 8 , wherein the clamping disk has a fourth axial bounding face arranged opposite the third axial bounding face and having a receiving profile corresponding to a tool.

Assignees

• Continental Automotive Gmbh

Inventors

• Muehlbauer Andreas
• Bleeck Matthias
• Dagdelen Burhan
• Bernhardt Joerg
• Bohmann Juergen

Classifications

• F02M63/0265

  Pumps feeding common rails · CPC title

• F02M59/485 Primary

  Means for fixing delivery valve casing and barrel to each other or to pump casing · CPC title

• F02M59/48

  Assembling; Disassembling; Replacing · CPC title

• F04B1/0452

  Distribution members, e.g. valves (machines or pumps with cam-actuated distribution members at the outer ends of the cylinders F04B1/0472; machines or pumps with cam-actuated distribution members at the inner ends of the cylinders F04B1/0531; the piston-driving cams being provided with inlets and outlets F04B1/0535) · CPC title

• F02M59/46

  Valves · CPC title