FR2342438A1 - Hydraulic coupling with variable speed reduction ratio - has valves to control volume of fluid retained in coupling housing - Google Patents

Hydraulic coupling with variable speed reduction ratio - has valves to control volume of fluid retained in coupling housing

Info

Publication number
FR2342438A1
FR2342438A1 FR7605546A FR7605546A FR2342438A1 FR 2342438 A1 FR2342438 A1 FR 2342438A1 FR 7605546 A FR7605546 A FR 7605546A FR 7605546 A FR7605546 A FR 7605546A FR 2342438 A1 FR2342438 A1 FR 2342438A1
Authority
FR
France
Prior art keywords
coupling
fluid
valves
variable speed
speed reduction
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
Application number
FR7605546A
Other languages
French (fr)
Other versions
FR2342438B1 (en
Inventor
Gilbert Larochette
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.)
Cegelec SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Priority to FR7605546A priority Critical patent/FR2342438A1/en
Publication of FR2342438A1 publication Critical patent/FR2342438A1/en
Application granted granted Critical
Publication of FR2342438B1 publication Critical patent/FR2342438B1/fr
Granted 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
    • F16D33/00—Rotary fluid couplings or clutches of the hydrokinetic type
    • F16D33/06—Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit
    • F16D33/08—Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit by devices incorporated in the fluid coupling, with or without remote control
    • F16D33/10—Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit by devices incorporated in the fluid coupling, with or without remote control consisting of controllable supply and discharge openings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

The hydraulic coupling has an input shaft (10) driving an impeller (1) which imparts energy to the fluid which in turn drives the turbine. The ratio of the turbine speed to the impeller speed can be controlled by controlling the volume of fluid circulating between impeller and turbine. The volume of fluid is controlled by a number of valves (12) which are normally held closed by fluid supplied from the valve (8). By shutting off the supply of fluid to the valve (12) the internal pressure opens the valve and partially drains the coupling of fluid. The number of speed ratios of the coupling is one greater than the number of valves (12).
FR7605546A 1976-02-27 1976-02-27 Hydraulic coupling with variable speed reduction ratio - has valves to control volume of fluid retained in coupling housing Granted FR2342438A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7605546A FR2342438A1 (en) 1976-02-27 1976-02-27 Hydraulic coupling with variable speed reduction ratio - has valves to control volume of fluid retained in coupling housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7605546A FR2342438A1 (en) 1976-02-27 1976-02-27 Hydraulic coupling with variable speed reduction ratio - has valves to control volume of fluid retained in coupling housing

Publications (2)

Publication Number Publication Date
FR2342438A1 true FR2342438A1 (en) 1977-09-23
FR2342438B1 FR2342438B1 (en) 1980-01-04

Family

ID=9169697

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7605546A Granted FR2342438A1 (en) 1976-02-27 1976-02-27 Hydraulic coupling with variable speed reduction ratio - has valves to control volume of fluid retained in coupling housing

Country Status (1)

Country Link
FR (1) FR2342438A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR811331A (en) * 1935-11-01 1937-04-12 Voith Gmbh J M Exhaust distribution for draining the circuits of turbo-hydraulic mechanisms
DE758017C (en) * 1939-10-05 1954-06-14 Gustav Dr Bauer Emptying device for fluid flow couplings or gears
DE1046959B (en) * 1952-06-20 1958-12-18 Daimler Benz Ag Hydrodynamic flow coupling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR811331A (en) * 1935-11-01 1937-04-12 Voith Gmbh J M Exhaust distribution for draining the circuits of turbo-hydraulic mechanisms
DE758017C (en) * 1939-10-05 1954-06-14 Gustav Dr Bauer Emptying device for fluid flow couplings or gears
DE1046959B (en) * 1952-06-20 1958-12-18 Daimler Benz Ag Hydrodynamic flow coupling

Also Published As

Publication number Publication date
FR2342438B1 (en) 1980-01-04

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Legal Events

Date Code Title Description
ST Notification of lapse