Restoring unit, particularly for an internal combustion engine

Patent metadata

Field	Value
Publication number	US-9388734-B2
Application number	US-201414763163-A
Country	US
Kind code	B2
Filing date	Jan 22, 2014
Priority date	Jan 24, 2013
Publication date	Jul 12, 2016
Grant date	Jul 12, 2016

Abstract

A restoring unit for an internal combustion engine may include a restoring console including a substantially cylindrical bearing dome. A first bearing unit may include a first receiving opening. The bearing dome may be rotatably inserted into the first receiving opening about an axis of the restoring console. A spring element may be arranged at least partially on an outer circumferential face of the bearing dome, and the restoring console may be preloaded via the spring element against the first bearing unit. The bearing dome may be detachably arranged in the first receiving opening via a clip connection. The clip connection may include a radial through-slot disposed on a first face side of the bearing dome facing the first receiving opening. The bearing dome may have a console bearing face mounting the restoring console within the first bearing unit.

First claim

The invention claimed is:

1. A restoring unit for an internal combustion engine of a motor vehicle, comprising:
a restoring console including a substantially cylindrical bearing dome,
a first bearing unit including a first receiving opening, wherein the bearing dome is rotatably inserted into the first receiving opening about an axis of the restoring console,
a spring element arranged at least partially on an outer circumferential face of the bearing dome, wherein the restoring console is preloaded via the spring element against the first bearing unit,
wherein the bearing dome is detachably arranged in the first receiving opening via a clip connection, and
wherein the clip connection includes a radial through-slot disposed on a first face side of the bearing dome facing the first receiving opening, and wherein the bearing dome has a console bearing face extending at least partially in the circumferential direction, the console bearing facing mounting the restoring console within the first bearing unit.

2. The restoring unit according to claim 1 , wherein the through-slot is arranged in a region of the console bearing face.

3. The restoring unit according to claim 1 , wherein the bearing dome further includes a stop arranged between the console bearing face and the outer circumferential face, wherein the stop prevents further insertion of the bearing dome into the first receiving opening.

4. The restoring unit according to claim 1 , wherein the through-slot includes a detent element on the first face side of the bearing dome for detachably securing the restoring console in the first receiving opening.

5. The restoring unit according to claim 1 , wherein the bearing dome defines a rotary shaft through-opening configured to receive a rotary shaft in a torque-proof manner for a torque-proof connection of the restoring console with a valve device.

6. The restoring unit according to claim 5 , wherein the rotary shaft through-opening defines an inner square opening.

7. The restoring unit according to claim 1 , wherein the spring element is a spring-elastic torsion spring, wherein the spring-elastic torsion spring in a mounted state is supported with a first axial end section on a first stop disposed on the first bearing unit and is supported with a second axial end section on a second stop disposed on the bearing dome.

8. The restoring unit according to claim 7 , wherein the first bearing unit further includes a receiving groove, and wherein the first axial end section of the torsion spring is at least partially arranged in the receiving groove in the mounted state for axially securing the torsion spring.

9. The restoring unit according to claim 7 , wherein the second stop includes an extension projecting outwardly from the bearing dome in an axial direction of the restoring console.

10. The restoring unit according to claim 1 , wherein the first bearing unit further includes a protective wall, wherein the protective wall in a mounted state defines a collecting device for retaining falling pieces.

11. The restoring unit according to claim 1 , further comprising a second bearing unit disposed at a second face side of the bearing dome opposite the first bearing unit, the first bearing unit and the second bearing unit together defining a bearing assembly, wherein the second bearing unit includes a second receiving opening for receiving the bearing dome, and wherein the bearing dome in a mounted state has a first axial end section of the first face side arranged in the first receiving opening of the first bearing unit and a second face side of the second axial end section arranged in the second receiving opening of the second bearing unit.

12. An internal combustion engine for a motor vehicle, comprising:
an intake device for air intake into a combustion chamber,
a restoring unit integrated into the intake device, the restoring unit including:
a restoring console including a substantially cylindrical bearing dome extending along an axis, the bearing dome including an outer circumferential face and a console bearing face extending at least partially in a circumferential direction;
a first bearing unit having a first receiving opening, wherein the console bearing face is rotatably inserted into the first receiving opening about the axis;
a spring element arranged at least partially on the outer circumferential face of the bearing dome, wherein the restoring console is preloaded via the spring element against the first bearing unit;
the bearing dome being detachably arranged in the first receiving opening via a clip connection;
wherein the clip connection includes a radial through-slot disposed in the console bearing face on a first face side of the bearing dome facing the receiving opening, and wherein the console bearing face mounts the restoring console within the first bearing unit in a mounted state; and

a valve device connected in a torque-proof manner with the bearing dome of the restoring unit, wherein the valve device is switchable in an intake opening of the intake device between an opened state and a closed state.

13. The internal combustion engine according to claim 12 , wherein the bearing dome further includes a stop arranged axially between the console bearing face and the outer circumferential face, wherein the stop prevents further insertion of the bearing dome into the first receiving opening.

14. The internal combustion engine according to claim 12 , wherein the through-slot includes a detent element on the first face side of the bearing dome for detachably securing the restoring console in the first receiving opening.

15. The internal combustion engine according to claim 12 , wherein the bearing dome has a rotary shaft through-opening configured to receive a rotary shaft of the valve device for a torque-proof connection of the restoring console with the valve device.

16. The internal combustion engine according to claim 15 , wherein the rotary shaft through-opening defines a square cross-section.

17. The internal combustion engine according to claim 12 , wherein the spring element is a spring-elastic torsion spring, wherein the torsion spring in the mounted state is supported with a first axial end section on a first stop disposed on the first bearing unit and with a second axial end section on a second stop disposed on the bearing dome.

18. The internal combustion engine according to claim 17 , wherein the first bearing unit further includes a receiving groove, and wherein the first axial end section of the torsion spring is at least partially arranged in the receiving groove in the mounted state for axially securing the torsion spring.

19. The internal combustion engine according to claim 17 , wherein the second stop of the bearing dome includes an extension projecting outwardly from the bearing dome in an axial direction.

20. The internal combustion engine according to claim 12 , wherein the first bearing unit further includes a protective wall, and wherein the protective wall defines a collecting device for retaining falling pieces from the restoring unit in the mounted state.

Assignees

• Mahle Int Gmbh

Inventors

• Mayer Burkhardt

Classifications

• Y10T137/6031

  Assembling or disassembling rotary valve · CPC title

• F02B37/186 Primary

  Arrangements of actuators or linkage for bypass valves · CPC title

• F16K1/16

  with pivoted closure-members · CPC title

• F02D9/1065

  Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like · CPC title

• F02D2009/0277

  Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks · CPC title