GB1103569A - Improvements in or relating to friction clutches - Google Patents

Improvements in or relating to friction clutches

Info

Publication number
GB1103569A
GB1103569A GB1231164A GB1231164A GB1103569A GB 1103569 A GB1103569 A GB 1103569A GB 1231164 A GB1231164 A GB 1231164A GB 1231164 A GB1231164 A GB 1231164A GB 1103569 A GB1103569 A GB 1103569A
Authority
GB
United Kingdom
Prior art keywords
pulley
secured
spring
friction
fan
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.)
Expired
Application number
GB1231164A
Inventor
Cyril Henderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB1231164A priority Critical patent/GB1103569A/en
Priority to DE1965S0051853 priority patent/DE1915341U/en
Publication of GB1103569A publication Critical patent/GB1103569A/en
Expired legal-status Critical Current

Links

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
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

1,103,569. Friction clutches. SMITH'S INDUSTRIES Ltd. 26 Feb., 1965 [24 March, 1964], No. 12311/64. Heading F2C. [Also in Division F1] In a friction clutch between a pulley 1, driven by a vehicle engine, and a radiator cooling air fan 8 or other accessory, centrifugal force on masses 11 at the ends of a leaf-spring 9 counteracts the engaging action of the leaf-spring, which urges the fan 8 into driving engagement with an annular friction surface 12 of the pulley 1, so that the clutch slips above a predetermined input speed. The pulley 1 is secured to a shaft 4 which drives an engine coolant pump (not shown), while the fan 8 and spring 9 have limited axial freedom only in bearing sleeve 5 rotatable on the shaft 4. A spring washer may be interposed between the pulley 1 and the friction surface 12. In Figs. 4 and 5 (not shown), an opposed pair of leaf springs (34, 35) urge an annular surface (33) of a fan (32) into driving engagement with a friction ring (27) spring mounted on a pulley (21), centrifugal masses (36) secured to the joined ends of the springs (34, 35) acting to draw the spring centres together to reduce the clutch engaging force as the input speed increases. Cooling air holes (38) are provided in a cover (37) surrounding the masses (36). In Fig. 6 (not shown), leaf springs (51) secured to a fan (50) carry at their free ends friction pads (52) which are urged into engagement with a disc (42) secured to a pulley (41). Centrifugal force on the pads (52) acts to reduce engagement pressure. In Fig. 7 (not shown), leaf springs (66) are secured to the driving shaft (63) of a dynamo (64), friction pads (67) secured to their free ends being urged into engagement with a flange (65) secured to a pulley (61) rotatably mounted on the shaft (63).
GB1231164A 1964-03-24 1964-03-24 Improvements in or relating to friction clutches Expired GB1103569A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1231164A GB1103569A (en) 1964-03-24 1964-03-24 Improvements in or relating to friction clutches
DE1965S0051853 DE1915341U (en) 1964-03-24 1965-03-11 COUPLING DEVICE FOR COUPLING AN ADDITIONAL VEHICLE UNIT TO A VEHICLE MACHINE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1231164A GB1103569A (en) 1964-03-24 1964-03-24 Improvements in or relating to friction clutches

Publications (1)

Publication Number Publication Date
GB1103569A true GB1103569A (en) 1968-02-14

Family

ID=10002184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231164A Expired GB1103569A (en) 1964-03-24 1964-03-24 Improvements in or relating to friction clutches

Country Status (2)

Country Link
DE (1) DE1915341U (en)
GB (1) GB1103569A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457026A (en) * 2008-01-30 2009-08-05 Bernard Joseph Holmes Centrifugal coupling for a cooling fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457026A (en) * 2008-01-30 2009-08-05 Bernard Joseph Holmes Centrifugal coupling for a cooling fan

Also Published As

Publication number Publication date
DE1915341U (en) 1965-05-06

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