Starter freewheel and freewheel arrangement having a starter freewheel of this kind

Patent metadata

Field	Value
Publication number	US-9638269-B2
Application number	US-201414548418-A
Country	US
Kind code	B2
Filing date	Nov 20, 2014
Priority date	Dec 5, 2013
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A starter freewheel is provided. The starter freewheel has a first race, a second race, a wedging gap formed between the first and second races, at least one wedging element arranged in the wedging gap, and at least one further component. The further component is in rotary drive connection with one of the races. The component is formed by at least two sheet-metal parts connected to one another in sandwich-fashion. A freewheel arrangement having a starter freewheel of this kind is also provided.

First claim

What is claimed is:

1. A starter freewheel having a first race, a second race, a wedging gap formed between the first and second races, at least one wedging element arranged in the wedging gap, and at least one further component, which is in rotary drive connection with a corresponding one of the races, wherein the further component is formed by at least two sheet-metal parts connected to one another sandwich-fashion, wherein the two sheet-metal parts include a first sheet-metal part and a second sheet-metal part having a side face that faces the first sheet-metal part and that is supported by at least 50% of the first sheet metal part, wherein the at least one further component is a torque transmission element for transmitting a torque to and/or from the corresponding one of the races with which the component is in rotary drive connection, wherein the two sheet-metal parts are connected to one another in such a way that the torque can be transmitted via just one of the two sheet-metal parts, and the torque transmission element forms a starter wheel.

2. The starter freewheel as claimed in claim 1 wherein the two sheet-metal parts are connected to one another nonpositively, positively, or a combination of nonpositively and positively.

3. The starter freewheel as claimed in claim 1 wherein the two sheet-metal parts are connected to one another with a damping layer placed in between, wherein the damping layer is softer and/or more flexible than the two sheet-metal parts.

4. The starter freewheel as claimed in claim 3 wherein the damping layer is formed from a viscoelastic and/or nonmetallic material.

5. The starter freewheel as claimed in claim 3 wherein the damping layer is adhesively bonded to at least one of the sheet-metal parts.

6. The starter freewheel as claimed in claim 3 wherein the damping layer is vulcanized to at least one of the sheet-metal parts.

7. The starter freewheel as claimed in claim 3 wherein the damping layer is clamped between the sheet-metal parts as a damping layer separate from the sheet-metal parts.

8. A starter freewheel having a first race, a second race, a wedging gap formed between the first and second races, at least one wedging element arranged in the wedging gap, and at least one further component, which is in rotary drive connection with a corresponding one of the races, wherein the further component is formed by at least two sheet-metal parts connected to one another sandwich-fashion, wherein the at least one further component is a side wall for delimiting the wedging gap, on which the wedging element, a wedging element cage and/or a spring element for preloading the wedging element is supported, wherein the sheet-metal part adjacent to the wedging gap or at least the side of said sheet-metal part which faces the wedging gap is of a material and/or is coated so as to be more wear resistant and/or more corrosion resistant and/or less subject to friction than the sheet-metal part remote from at least a surface of the wedging gap and the side wall comprises a torque transmission element that transmits a torque to and/or from the corresponding one of the races with which the at least one further component is in rotary drive connection.

9. The starter freewheel as claimed in claim 1 further having a damping layer placed in between the two sheet-metal parts.

10. The starter freewheel as claim in claim 8 wherein the damping layer is placed between the side face and the first sheet metal part.

11. The starter freewheel as claimed in claim 7 further comprising a spring element for preloading the wedging element into a predetermined position, said spring element having an elongate spring body, which extends in a radial plane and has a corrugated profile in the radial direction and is formed by a sheet-metal part or wire.

12. The starter freewheel as claimed in claim 11 wherein the spring body has different widths in the axial direction of the starter freewheel and/or is secured on the first race, the second race and/or the side wall.

13. The starter freewheel as claimed in claim 7 wherein the wedging element comprising a wedging roller, wherein the ratio of a width (b) to an outside diameter of the wedging roller is less than or equal to 1:2.

14. The starter freewheel as claimed in claim 7 wherein the wedging element is designed as a wedging roller, wherein the ratio of a width (b) to an outside diameter of the wedging roller is less than or equal to 1:3.

15. The starter freewheel as claimed in claim 7 wherein the wedging element is designed as a wedging roller, wherein the ratio of a width (b) to an outside diameter of the wedging roller is less than or equal to 1:5.

16. The starter freewheel as claimed in claim 7 wherein the two sheet-metal parts are connected to one another nonpositively, positively, or a combination of nonpositively and positively.

17. The starter freewheel as claimed in claim 7 wherein the two sheet-metal parts are connected to one another with a damping layer placed in between, wherein the damping layer is softer and/or more flexible than the two sheet-metal parts.

18. The starter freewheel as claimed in claim 7 wherein the two sheet-metal parts include a first sheet-metal part, and a second sheet-metal part having a side face that faces the first sheet-metal part is supported by at least 50% of the first sheet metal part.

19. The starter freewheel as claimed in claim 7 wherein the side face is fully supported on the first sheet metal part.

20. The starter freewheel as claimed in claim 7 wherein the second sheet-metal part has less thickness than the first sheet-metal part.

21. The starter freewheel as claimed in claim 1 wherein the second sheet-metal part has less thickness than the first sheet-metal part.

Assignees

• Borgwarner Inc

Inventors

• Boelling Jochen
• Schmitt Dirk Achim
• Baeumler Richard

Classifications

• F16F15/00

  Suppression of vibrations in systems ({damping of non-rotary systems using inertia effect F16F7/10; prevention or isolation of vibrations in machine tools B23Q11/0032; suppression of driveline vibrations in hybrid vehicle transmissions B60W30/20} ; vehicle seat suspension devices B60N2/50; {methods or devices for protecting against, or damping of, acoustic waves, e.g. sound G10K11/16}); Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion ({vibration absorbing or balancing means for aircraft propellers B64C11/008, for rotorcraft rotors B64C27/001} ; testing static and dynamic balance of machines or structures G01M1/00) · CPC title

• F02N15/023 Primary

  of the overrunning type · CPC title

• F16D2041/0605

  Spring details · CPC title

• F16D41/066

  all members having the same size and only one of the two surfaces being cylindrical · CPC title

• F16D2300/22

  Vibration damping · CPC title