GB1243720A – Hydraulically actuated clutch having a feed back dump valve
– Google Patents
GB1243720A – Hydraulically actuated clutch having a feed back dump valve
– Google Patents
Hydraulically actuated clutch having a feed back dump valve
Info
Publication number
GB1243720A
GB1243720A
GB5940169A
GB5940169A
GB1243720A
GB 1243720 A
GB1243720 A
GB 1243720A
GB 5940169 A
GB5940169 A
GB 5940169A
GB 5940169 A
GB5940169 A
GB 5940169A
GB 1243720 A
GB1243720 A
GB 1243720A
Authority
GB
United Kingdom
Prior art keywords
valve
passage
clutch
pressure
chamber
Prior art date
1968-12-18
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
GB5940169A
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.)
Twin Disc Inc
Original Assignee
Twin Disc Inc
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.)
1968-12-18
Filing date
1969-12-05
Publication date
1971-08-25
1969-12-05
Application filed by Twin Disc Inc
filed
Critical
Twin Disc Inc
1971-08-25
Publication of GB1243720A
publication
Critical
patent/GB1243720A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F16D25/00—Fluid-actuated clutches
F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
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
F16D25/00—Fluid-actuated clutches
F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/00—Fluid handling
Y10T137/0971—Speed responsive valve control
Y10T137/108—Centrifugal mass type [exclusive of liquid]
Y10T137/1098—With multiple valves
Abstract
1,243,720. Friction clutches. TWIN DISC Inc. 5 Dec., 1969 [18 Dec., 1968], No. 59401/69. Heading F2C. In an hydraulically operated multi-plate friction clutch wherein a radially slidable local exhaust valve 20 is moved inward by pressure liquid supplied through a passage 14 to connect a clutch-actuating chamber 6 to the supply passage 14, a feed-back passage 33 is provided between the actuating chamber 6 and the inner end of the valve 20 so that when the pressure supply in passage 14 is cut off the valve 20 is moved radpidly outward by centrifugal force and back-pressure to exhaust the chamber 6 through ducts 35, 36. Pins 32 limit radially inward movement of the valve 20. The weight of the valve 20 is chosen so that the centrifugal force thereon balances the centrifugal pressure head of the liquid in the passage 14. As shown in a double clutch similar local exhaust valves 20 are provided for both clutch actuating chambers 6, 7.
GB5940169A
1968-12-18
1969-12-05
Hydraulically actuated clutch having a feed back dump valve
Expired
GB1243720A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US78462768A
1968-12-18
1968-12-18
Publications (1)
Publication Number
Publication Date
GB1243720A
true
GB1243720A
(en)
1971-08-25
Family
ID=25133049
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5940169A
Expired
GB1243720A
(en)
1968-12-18
1969-12-05
Hydraulically actuated clutch having a feed back dump valve
Country Status (3)
Country
Link
US
(1)
US3537557A
(en)
DE
(1)
DE1963556A1
(en)
GB
(1)
GB1243720A
(en)
Families Citing this family (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3762520A
(en)
*
1971-08-13
1973-10-02
Fmc Corp
Fluid operated friction clutch with dump valve
US3872956A
(en)
*
1973-09-04
1975-03-25
Caterpillar Tractor Co
Fluid operated centrifugal clutch
US3894446A
(en)
*
1974-06-03
1975-07-15
Twin Disc Inc
Power transmission having friction clutch bias differential with automatic clutch release
US4006808A
(en)
*
1975-05-27
1977-02-08
Caterpillar Tractor Co.
Controls for a centrifugal fluid clutch
US4261455A
(en)
*
1978-12-26
1981-04-14
Allis-Chalmers Corporation
Centrifugal pressure relief valve for a hydraulic clutch
EP0188415B1
(en)
*
1983-09-15
1987-12-02
ZF FRIEDRICHSHAFEN Aktiengesellschaft
Power train
DE3908090C1
(en)
*
1989-03-13
1989-11-16
Viscodrive Gmbh, 5204 Lohmar, De
US8453819B2
(en)
2010-02-22
2013-06-04
Twin Disc, Inc.
Balanced clutch system
US10520045B2
(en)
*
2018-01-30
2019-12-31
Ford Global Technologies, Llc
Vehicle transmission
GB2574263B
(en)
*
2018-06-01
2020-09-30
Caterpillar Sarl
Disconnect clutch
1968
1968-12-18
US
US3537557D
patent/US3537557A/en
not_active
Expired – Lifetime
1969
1969-12-05
GB
GB5940169A
patent/GB1243720A/en
not_active
Expired
1969-12-18
DE
DE19691963556
patent/DE1963556A1/en
active
Pending
Also Published As
Publication number
Publication date
DE1963556A1
(en)
1970-06-25
US3537557A
(en)
1970-11-03
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