Compressor and a method for the assembly of an actuation device in the compressor

Patent metadata

Field	Value
Publication number	US-11060446-B2
Application number	US-201916600152-A
Country	US
Kind code	B2
Filing date	Oct 11, 2019
Priority date	Oct 12, 2018
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A compressor may include a compressor housing in which may be formed a charge air passage through which charge air may be flowable, an actuator arranged on the charge air passage for adaptation of a cross-section of the charge air passage, the actuator having a flow arrangement for influencing a flow of charge air through the charge air passage, and a linear actuator. The compressor may also have a housing body accommodating the linear actuator and integrally formed on the compressor housing, and a closure cover of the compressor housing closing the housing body and the compressor housing in an airtight manner against an external environment. A movement of the linear actuator directed tangentially to the flow arrangement may bring the flow arrangement into at least of at least one closed position and at least one open position to enable the cross-section of the charge air passage to be adapted.

First claim

The invention claimed is:

1. A compressor for compression of charge air for an internal combustion engine, comprising:
a compressor housing in which is formed a charge air passage through which the charge air is flowable in a flow direction;
an actuator arranged on the charge air passage for an adaptation of a cross-section of the charge air passage, the actuator having a flow arrangement for influencing a flow of the charge air through the charge air passage, and a linear actuator;
a housing body accommodating the linear actuator and integrally formed on the compressor housing;
a closure cover of the compressor housing closing the housing body and the compressor housing in an airtight manner against an external environment;
wherein a movement of the linear actuator directed tangentially to the arrangement of the actuator brings the actuator into at least one of at least one closed position and at least one open position to enable the cross-section of the charge air passage to be adapted; and
wherein the closure cover is attached to a distal end of the linear actuator such that the linear actuator is wholly arranged in the compressor housing.

2. The compressor in accordance with claim 1 , wherein at least one of:
the closure cover is pressed or screwed onto the housing body; and
a cover seal is arranged between the closure cover and the housing body and seals the housing body against the external environment.

3. The compressor in accordance with claim 1 , wherein the linear actuator has an electromechanical, a pneumatic, or a hydraulic actuator.

4. The compressor in accordance with claim 1 , wherein the linear actuator has a ram, which interacts with an active surface of the flow arrangement, and, by the movement directed tangentially to the flow arrangement, brings the flow arrangement into the at least one closed position or into the at least one open position.

5. The compressor in accordance with claim 4 , wherein one of:
the ram is designed to be convex at a longitudinal end of the ram interacting with the active surface, and the active surface is designed to be curved; or
the ram and the active surface each is designed to be flat at a respective longitudinal end interacting with each other.

6. The compressor in accordance with claim 4 , wherein the actuator has a reset arrangement, which interacts with the flow arrangement in the opposite direction to the ram, and brings the flow arrangement into the at least one open position or into the at least one closed position.

7. The compressor in accordance with claim 6 , wherein one of:
the reset arrangement and the linear actuator form an assembly unit, wherein the assembly unit is able to be introduced into the housing body in an assembly direction, which is parallel to the movement of the linear actuator directed tangentially to the flow arrangement; or
the reset arrangement and the flow arrangement form an assembly unit introduced into the compressor housing, wherein the linear actuator is able to be introduced into the housing body in the assembly direction and coupled in an interactive manner with the reset arrangement.

8. The compressor in accordance with claim 6 , wherein the reset arrangement has at least one spring.

9. The compressor in accordance with claim 8 , wherein the at least one spring includes one of:
a leg spring;
an involute spring; or
a helical tension spring and a helical compression spring.

10. The compressor in accordance with claim 4 , wherein the ram of the linear actuator is fixed in position on the active surface in a form-fitted or materially-bonded manner.

11. The compressor in accordance with claim 1 , wherein the linear actuator is able to be introduced into the housing body in an assembly direction, which is parallel to the movement of the linear actuator directed tangentially to the flow arrangement.

12. The compressor in accordance with claim 11 , wherein the ram of the linear actuator is guided in the assembly direction through a base of the housing body extending radially with respect to the assembly direction of the linear actuator.

13. The compressor in accordance with claim 12 , wherein the base of the housing body is sealed around the ram of the linear actuator that is guided through the base, such that the linear actuator in the housing body is sealed from the charge air passage.

14. The compressor in accordance with claim 12 , wherein one of:
the base of the housing body forms a stop for the linear actuator in the assembly direction; or
the linear actuator is fixed in a position on the closure cover in the assembly direction.

15. The compressor in accordance with claim 14 , wherein the linear actuator is fixed in the position on the closure cover by an overmoulding of the linear actuator.

16. The compressor in accordance with claim 1 , wherein the flow arrangement includes an orifice plate arrangement.

Assignees

• Bmts Tech Gmbh & Co Kg
• Mahle Int Gmbh

Inventors

• Weiss Hartmut

Classifications

• F02B37/225

  air passages · CPC title

• F02B33/44 Primary

  Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs · CPC title

• F04D29/083

  especially adapted for elastic fluid pumps · CPC title

• F04D29/522

  especially adapted for elastic fluid pumps · CPC title

• F04D29/563 Primary

  specially adapted for elastic fluid pumps · CPC title