CA2764391A1 - Engine clutch and method of using same - Google Patents
Engine clutch and method of using same Download PDFInfo
- Publication number
- CA2764391A1 CA2764391A1 CA2764391A CA2764391A CA2764391A1 CA 2764391 A1 CA2764391 A1 CA 2764391A1 CA 2764391 A CA2764391 A CA 2764391A CA 2764391 A CA2764391 A CA 2764391A CA 2764391 A1 CA2764391 A1 CA 2764391A1
- Authority
- CA
- Canada
- Prior art keywords
- clutch
- fluid
- drive shaft
- central channel
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims 8
- 239000012530 fluid Substances 0.000 claims abstract 58
- 239000006249 magnetic particle Substances 0.000 claims 6
- 230000003213 activating effect Effects 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 2
- 230000004913 activation Effects 0.000 claims 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D31/00—Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution
- F16D31/02—Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D31/00—Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution
- F16D31/08—Control of slip
Abstract
The invention relates to engine clutches (100). The clutch includes a drive shaft (216) rotated by the engine, an eccentric shaft selectively rotated by the drive shaft (216), a clutch fluid, a plural-ity of pistons, and a fluid regulator. The eccentric shaft (218) is posi-tionable in an opening of the drive shaft (216) for rotation thereby. The eccentric shaft (218) has cylinders extending radially therethrough and a central channel (282) extending longitudinally therethrough. The clutch fluid (221) flows between the cylinders and channel. Each piston (266) is slidably positionable in a cylinder in response to flow of clutch fluid. The pistons (266) have an outer end in constant contact with the drive shaft (216) via a bearing (262). The fluid regulator (267) is posi-tionable in the central channel (282) for selectively restricting flow of clutch fluid (221) whereby rotational speed of the eccentric shaft (218) is adjusted. The eccentric shaft (218) is connectable to a device, such as a fan (278, 164a), for rotation therewith.
Claims (40)
1. A clutch for an engine, comprising:
a drive shaft operatively connectable to the engine for rotation thereby, the drive shaft having an opening extending therethrough;
an eccentric shaft positionable in the opening of the drive shaft and rotatable thereby, the eccentric shaft having a plurality of cylinders extending radially therethrough and a central channel extending longitudinally therethrough, the plurality of cylinders and the central channel having fluid communication therebetween, the eccentric shaft connectable to a device for rotation therewith;
a clutch fluid selectively flowing between the plurality of cylinders and the central channel;
a plurality of pistons, each of the plurality of pistons positionable in one of the plurality of cylinders and slidably movable therein in response to the flow of the clutch fluid, the plurality of pistons having an outer end in constant contact with the drive shaft via a bearing; and a fluid regulator positionable in the central channel, the fluid regulator selectively restricting flow of at least a portion of the clutch fluid flowing between the plurality of cylinders and the central channel to selectively permit reciprocation of the plurality of pistons whereby a rotational speed of the eccentric shaft is adjusted.
a drive shaft operatively connectable to the engine for rotation thereby, the drive shaft having an opening extending therethrough;
an eccentric shaft positionable in the opening of the drive shaft and rotatable thereby, the eccentric shaft having a plurality of cylinders extending radially therethrough and a central channel extending longitudinally therethrough, the plurality of cylinders and the central channel having fluid communication therebetween, the eccentric shaft connectable to a device for rotation therewith;
a clutch fluid selectively flowing between the plurality of cylinders and the central channel;
a plurality of pistons, each of the plurality of pistons positionable in one of the plurality of cylinders and slidably movable therein in response to the flow of the clutch fluid, the plurality of pistons having an outer end in constant contact with the drive shaft via a bearing; and a fluid regulator positionable in the central channel, the fluid regulator selectively restricting flow of at least a portion of the clutch fluid flowing between the plurality of cylinders and the central channel to selectively permit reciprocation of the plurality of pistons whereby a rotational speed of the eccentric shaft is adjusted.
2. The clutch of Claim 1, wherein the clutch fluid comprises a carrier fluid with a plurality of magnetic particles therein and wherein the fluid regulator comprises a pair of opposing magnets positionable in the central channel with the clutch fluid flowing therebetween, the opposing magnets generating a magnetic field therebetween for aligning at least a portion of the plurality of magnetic particles in the central channel.
3. The clutch of Claim 1, wherein the clutch fluid comprises a motor fluid and wherein the fluid regulator comprises a pair of blocks positionable in the central channel with the clutch fluid flowing therebetween, at least a portion of at least one of the pair of blocks being slidably movable in the central channel via a motor.
4. The clutch of Claim 1, wherein the drive shaft is directly connectable to the engine.
5. The clutch of Claim 1, wherein the drive shaft is indirectly connectable to the engine.
6. The clutch of Claim 1, wherein the drive shaft is operatively connectable to the engine and driven thereby via a power transmission mechanism.
7. The clutch of Claim 1, wherein the drive shaft is operatively connectable to the engine and driven thereby via a motor.
8. The clutch of Claim 1, further comprising a reservoir operatively connectable to the clutch for providing the clutch fluid thereto.
9. The clutch of Claim 8, further comprising a valve for selectively releasing the clutch fluid from the reservoir.
10. The clutch of Claim 1, further comprising a controller for operating the fluid regulator.
11. The clutch of Claim 1, further comprising at least one sensor for measuring parameters of at least one of the clutch, the engine, the device and combinations thereof.
12. The clutch of Claim 1, further comprising a mounting bracket for rotationally mounting the drive shaft to a fixed surface.
13. The clutch of Claim 12, further comprising at least one bearing between the mounting bracket and the drive shaft.
14. The clutch of Claim 1, further comprising at least one bearing between the drive shaft and the eccentric shaft.
15. The clutch of Claim 1, wherein the plurality of cylinders are at 120 degree intervals about the eccentric shaft.
16. The clutch of Claim 1, wherein the device is one of a fan, a connector, a coupler, a gear, a pulley and combinations thereof.
17. A clutch system for an engine, comprising:
a clutch comprising:
a drive shaft operatively connectable to the engine for rotation thereby, the drive shaft having an opening extending therethrough;
an eccentric shaft positionable in the opening of the drive shaft and rotatable thereby, the eccentric shaft having a plurality of cylinders extending radially therethrough and a central channel extending longitudinally therethrough, the plurality of cylinders and the central channel having fluid communication therebetween;
a clutch fluid for selectively flowing between the plurality of cylinders and the central channel;
a plurality of pistons, each of the plurality of pistons positionable in one of the plurality of cylinders and slidably movable therein in response to the flow of the clutch fluid, the plurality of pistons having an outer end in constant contact with the drive shaft via a bearing; and a fluid regulator positionable in the central channel, the fluid regulator selectively restricting flow of at least a portion of the clutch fluid flowing between the plurality of cylinders and the central channel to selectively permit reciprocation of the plurality of pistons whereby the rotational speed of the eccentric shaft is adjusted; and a device operatively connectable to the clutch for rotation therewith.
a clutch comprising:
a drive shaft operatively connectable to the engine for rotation thereby, the drive shaft having an opening extending therethrough;
an eccentric shaft positionable in the opening of the drive shaft and rotatable thereby, the eccentric shaft having a plurality of cylinders extending radially therethrough and a central channel extending longitudinally therethrough, the plurality of cylinders and the central channel having fluid communication therebetween;
a clutch fluid for selectively flowing between the plurality of cylinders and the central channel;
a plurality of pistons, each of the plurality of pistons positionable in one of the plurality of cylinders and slidably movable therein in response to the flow of the clutch fluid, the plurality of pistons having an outer end in constant contact with the drive shaft via a bearing; and a fluid regulator positionable in the central channel, the fluid regulator selectively restricting flow of at least a portion of the clutch fluid flowing between the plurality of cylinders and the central channel to selectively permit reciprocation of the plurality of pistons whereby the rotational speed of the eccentric shaft is adjusted; and a device operatively connectable to the clutch for rotation therewith.
18. The system of Claim 17, wherein the clutch fluid comprises a carrier fluid with a plurality of magnetic particles therein and wherein the fluid regulator comprises a pair of opposing magnets positionable in the central channel with the clutch fluid flowing therebetween, the opposing magnets generating a magnetic field therebetween for aligning at least a portion of the plurality of magnetic particles.
19. The system of Claim 17, wherein the clutch fluid comprises a motor fluid and wherein the fluid regulator comprises a pair of blocks positionable in the central channel with the clutch fluid flowing therebetween, at least a portion of at least one of the pair of blocks being slidably movable in the central channel via a motor.
20. The system of Claim 17, wherein the drive shaft is directly connectable to the engine.
21. The system of Claim 17, wherein the drive shaft is indirectly connectable to the engine.
22. The system of Claim 17, wherein the drive shaft is operatively connectable to the engine and driven thereby via a power transmission mechanism.
23. The system of Claim 17, wherein the drive shaft is operatively connectable to the engine and driven thereby via a motor.
24. The system of Claim 17, further comprising a reservoir operatively connectable to the clutch for providing the clutch fluid thereto.
25. The system of Claim 24, further comprising a valve for selectively releasing the clutch fluid from the reservoir.
26. The system of Claim 17, further comprising a controller for operating the fluid regulator.
27. The system of Claim 17, further comprising a sensor for measuring parameters of one of the clutch, the device, the engine and combinations thereof.
28. The system of Claim 17, further comprising a mounting bracket for rotationally mounting the drive shaft to a fixed surface.
29. The system of Claim 28, further comprising at least one bearing between the mounting bracket and the drive shaft.
30. The system of Claim 17, further comprising at least one bearing between the drive shaft and the eccentric shaft.
31. The system of Claim 17, wherein the plurality of cylinders are at 120 degree intervals about the eccentric shaft.
32. The clutch of Claim 17, wherein the device is one of a fan, a connector, a coupler, a gear, a pulley and combinations thereof.
33. A method of operating a clutch of an engine, comprising:
operatively connecting a clutch to the engine for selective rotation thereby, the clutch comprising:
a drive shaft operatively connectable to the engine for rotation thereby, the drive shaft having an opening extending therethrough;
an eccentric shaft positionable in the opening of the drive shaft and rotatable thereby, the eccentric shaft having a plurality of cylinders extending radially therethrough and a central channel extending longitudinally therethrough, the plurality of cylinders and the central channel having fluid communication therebetween;
an clutch fluid selectively flowing between the plurality of cylinders and the central channel;
a plurality of pistons, each of the plurality of pistons positioned in one of the plurality of cylinders and slidably movable therein in response to the flow of clutch fluid, the plurality of pistons having an outer end in constant contact with the drive shaft via a bearing; and a fluid regulator positionable in the central channel, the fluid regulator selectively restricting flow of at least a portion of the clutch fluid flowing between the plurality of cylinders and the central channel to selectively permit reciprocation of the plurality of pistons; and operatively connecting a device to the clutch for rotation therewith;
rotationally driving the clutch via the engine; and adjusting a rotational speed of the device by selectively activating the fluid regulator.
operatively connecting a clutch to the engine for selective rotation thereby, the clutch comprising:
a drive shaft operatively connectable to the engine for rotation thereby, the drive shaft having an opening extending therethrough;
an eccentric shaft positionable in the opening of the drive shaft and rotatable thereby, the eccentric shaft having a plurality of cylinders extending radially therethrough and a central channel extending longitudinally therethrough, the plurality of cylinders and the central channel having fluid communication therebetween;
an clutch fluid selectively flowing between the plurality of cylinders and the central channel;
a plurality of pistons, each of the plurality of pistons positioned in one of the plurality of cylinders and slidably movable therein in response to the flow of clutch fluid, the plurality of pistons having an outer end in constant contact with the drive shaft via a bearing; and a fluid regulator positionable in the central channel, the fluid regulator selectively restricting flow of at least a portion of the clutch fluid flowing between the plurality of cylinders and the central channel to selectively permit reciprocation of the plurality of pistons; and operatively connecting a device to the clutch for rotation therewith;
rotationally driving the clutch via the engine; and adjusting a rotational speed of the device by selectively activating the fluid regulator.
34. The method of Claim 33, wherein the step of rotationally driving comprises rotationally driving the drive shaft directly via the engine.
35. The method of Claim 33, wherein the step of rotationally driving comprises rotationally driving the drive shaft indirectly via the engine.
36. The method of Claim 33, wherein the clutch fluid comprises a carrier fluid with a plurality of magnetic particles therein and wherein the fluid regulator comprises a pair of opposing magnets positioned in the central channel with the clutch fluid flowing therebetween, the opposing magnets selectively generating an magnetic field therebetween for aligning at least a portion of the plurality of magnetic particles, the step of adjusting comprising adjusting a rotational speed of the device by selectively generating the magnetic field.
37. The system of Claim 33, wherein the clutch fluid comprises a motor fluid and wherein the fluid regulator comprises a pair of blocks positioned in the central channel with the activation flowing fluid therebetween, at least a portion of at least one of the pair of blocks being slidably movable in the central channel via a motor, the step of adjusting comprising adjusting a rotational speed of the device by selectively positioning the portion of the at least one of the pair of blocks.
38. The method of Claim 33, wherein the fluid regulator is operable between a minimum and maximum fluid flow.
39. The method of Claim 33, wherein the step of adjusting comprises adjusting a rotational speed of the device by selectively activating the fluid regulator based on at least one measured parameter.
40. The method of Claim 33, wherein the device is one of a fan, a connector, a coupler, a gear, a pulley and combinations thereof.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/499,318 | 2009-07-08 | ||
US12/499,318 US8235195B2 (en) | 2009-07-08 | 2009-07-08 | Engine clutch and method of using same |
PCT/US2010/038266 WO2011005409A1 (en) | 2009-07-08 | 2010-06-11 | Engine clutch and method of using same |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2764391A1 true CA2764391A1 (en) | 2011-01-13 |
CA2764391C CA2764391C (en) | 2014-01-14 |
Family
ID=42340745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2764391A Expired - Fee Related CA2764391C (en) | 2009-07-08 | 2010-06-11 | Engine clutch and method of using same |
Country Status (4)
Country | Link |
---|---|
US (1) | US8235195B2 (en) |
EP (1) | EP2452093A1 (en) |
CA (1) | CA2764391C (en) |
WO (1) | WO2011005409A1 (en) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US563989A (en) * | 1896-07-14 | Friction-clutch | ||
US2396352A (en) * | 1942-10-31 | 1946-03-12 | Carroll B Vickers | Propeller transmission |
US3448751A (en) * | 1965-10-08 | 1969-06-10 | Norco Products Inc | Magnetic fluid pressure control |
AU5692780A (en) * | 1980-03-06 | 1980-07-03 | Keness, J. | Hydraulic cylinder-clutch transmission |
US4518069A (en) | 1982-11-01 | 1985-05-21 | Elias Charles R | Adjustable speed drive utilizing radially movable hollow pistons which act on a cam surface |
JPH078620B2 (en) | 1986-06-04 | 1995-02-01 | 日産自動車株式会社 | Torque transmission device |
EP0365824B1 (en) | 1988-09-20 | 1994-06-01 | Nissan Motor Co., Ltd. | Rotational speed differential responsive type control coupling |
US6186290B1 (en) | 1997-10-29 | 2001-02-13 | Lord Corporation | Magnetorheological brake with integrated flywheel |
US6318531B1 (en) | 2000-06-20 | 2001-11-20 | General Motors Corporation | Magnetorheological fluid clutch |
US6412618B1 (en) * | 2000-06-27 | 2002-07-02 | Eaton Corporation | Ball-ramp-actuated friction clutch controlled by a particle-clutch |
US6932917B2 (en) | 2001-08-06 | 2005-08-23 | General Motors Corporation | Magnetorheological fluids |
WO2004033929A1 (en) * | 2002-10-03 | 2004-04-22 | The Timken Company | Clutch having a variable viscosity fluid |
US7364025B2 (en) | 2005-06-02 | 2008-04-29 | Borgwarner Inc. | Magnetorheological fan coupling |
CN101539178B (en) | 2008-03-19 | 2010-12-08 | 李礼然 | Deflective transmission-type clutch |
-
2009
- 2009-07-08 US US12/499,318 patent/US8235195B2/en active Active
-
2010
- 2010-06-11 CA CA2764391A patent/CA2764391C/en not_active Expired - Fee Related
- 2010-06-11 EP EP10724670A patent/EP2452093A1/en not_active Withdrawn
- 2010-06-11 WO PCT/US2010/038266 patent/WO2011005409A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CA2764391C (en) | 2014-01-14 |
US8235195B2 (en) | 2012-08-07 |
US20110005884A1 (en) | 2011-01-13 |
WO2011005409A1 (en) | 2011-01-13 |
EP2452093A1 (en) | 2012-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |
Effective date: 20130821 |
|
MKLA | Lapsed |
Effective date: 20220613 |