GB1191429A - Hydraulic Devices for Controlling Pressure Build-Up in a Clutch or Brake. - Google Patents

Hydraulic Devices for Controlling Pressure Build-Up in a Clutch or Brake.

Info

Publication number
GB1191429A
GB1191429A GB47667/68A GB4766768A GB1191429A GB 1191429 A GB1191429 A GB 1191429A GB 47667/68 A GB47667/68 A GB 47667/68A GB 4766768 A GB4766768 A GB 4766768A GB 1191429 A GB1191429 A GB 1191429A
Authority
GB
United Kingdom
Prior art keywords
pressure
passage
piston
valve
chamber
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
GB47667/68A
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of GB1191429A publication Critical patent/GB1191429A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/18—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs with control of pump output delivery, e.g. by distributor valves
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • 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
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/14—Fluid pressure control
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/08—Timing control
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/103—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the sensing element placed between the inlet and outlet
    • G05D16/106—Sleeve-like sensing elements; Sensing elements surrounded by the flow path
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0209—Control by fluid pressure characterised by fluid valves having control pistons, e.g. spools
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0221—Valves for clutch control systems; Details thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Safety Valves (AREA)

Abstract

1,191,429. Pressure regulating valves; valves. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 8 Oct., 1968 [19 Oct., 1967], No. 47667/68. Headings F2D and F2V. An hydraulic device for controlling pressure build-up in a clutch or brake acting as a gearbox shift element comprises a pressure regulating valve 1, Fig. 1 having two piston portions 1À1, 1.2 respectively controlling supply and vent passages 7, 11 which have a regulated pressure take-off passage 8 disposed therebetween, the valve being loaded with the regulated pressure against the action of a compression spring 6 disposed between the valve 1 and a larger diameter piston 2 which is also loaded by the regulated pressure and a passage 12, which in the rest position of the valve 1 is connected to a vent 13, between the larger piston loading chamber 5 and a chamber 3 of the valve piston facing the larger piston. When pump pressure is supplied via passage 7 the initial take-off pressure in passage 8 is dependent on the pre-stressing of the compression spring 6. As the regulated pressure rises the pressure supplied to chamber 4 via passage 9 causes the valve 1 to move to the left further compressing spring 6, closing supply passage 7 and opening vent passage 11. Similarly the pressure supplied via passage 10 and throttle 10À1 to chamber 5 causes the piston 2 to move to the right also compressing the spring 6. The opening of vent passage 11 and closing of supply passage 7 is dependent on the equilibrium between spring force and loading pressure, the time taken to achieve the regulated pressure being dependent on the sizes of throttle 10À1 and piston 2. When the clutch is vented pressure falls in passages 8, 9, 10 and valve piston 1À2 moves to allow the pressure in chamber 5 to collapse quickly via passage 12 and vent passage 13 causing piston 2 to be moved back to its Fig. 1 position by spring 6. In a modification to give a final abrupt rise of regulated pressure up to the supply pressure the piston (2), Fig. 3 (not shown), engages an elongated valve stem (15) to cause the valve piston (1À1) to open the supply passage (7). In a further modification to give a non-linear rise of regulated pressure passage 10, Fig. 1, is replaced by a passage (14), Fig. 4 (not shown), including a throttle (14À1), arranged directly between the supply passage 7 and the chamber (5).
GB47667/68A 1967-10-19 1968-10-08 Hydraulic Devices for Controlling Pressure Build-Up in a Clutch or Brake. Expired GB1191429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ0013106 1967-10-19

Publications (1)

Publication Number Publication Date
GB1191429A true GB1191429A (en) 1970-05-13

Family

ID=7623031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47667/68A Expired GB1191429A (en) 1967-10-19 1968-10-08 Hydraulic Devices for Controlling Pressure Build-Up in a Clutch or Brake.

Country Status (5)

Country Link
JP (1) JPS5337575B1 (en)
CS (1) CS167879B2 (en)
DE (1) DE1650612B2 (en)
GB (1) GB1191429A (en)
SE (1) SE354904B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356841A1 (en) * 1976-06-28 1978-01-27 Towmotor Corp PRESSURE LIMITATION INSTALLATION FOR THE PROGRESSIVE VALVE OF A HYDRAULIC COUPLING
EP0097210A1 (en) * 1982-06-23 1984-01-04 Deere & Company Hydraulic actuator arrangement
CN103195735A (en) * 2013-04-17 2013-07-10 江苏振华泵业制造有限公司 Internal reflux valve for self-priming pump

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007666A (en) * 1974-05-23 1977-02-15 Pneumo Corporation Servoactuator
DE3521579A1 (en) * 1985-06-15 1986-12-18 J.M. Voith Gmbh, 7920 Heidenheim CONTROL VALVE
DE3826555A1 (en) * 1988-08-04 1990-03-15 Rexroth Mannesmann Gmbh DEVICE FOR CHANGING THE LOOP CONTROL REINFORCEMENT FOR A HYDRAULIC CONTROL DEVICE
DE3833622A1 (en) * 1988-10-03 1990-04-05 Rexroth Mannesmann Gmbh Valve arrangement for the time-controlled, selective supply of control members, such as, for example, couplings of a power shift transmission, with controlled system pressure
DE3833624A1 (en) * 1988-10-03 1990-04-05 Rexroth Mannesmann Gmbh Valve arrangement for the controlled supply of a working space with hydraulic fluid
DE3833623A1 (en) * 1988-10-03 1990-04-05 Rexroth Mannesmann Gmbh Valve arrangement for the controlled supply of at least one working space with hydraulic fluid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356841A1 (en) * 1976-06-28 1978-01-27 Towmotor Corp PRESSURE LIMITATION INSTALLATION FOR THE PROGRESSIVE VALVE OF A HYDRAULIC COUPLING
EP0097210A1 (en) * 1982-06-23 1984-01-04 Deere & Company Hydraulic actuator arrangement
US4567971A (en) * 1982-06-23 1986-02-04 Deere & Company Hydraulic circuit for activating a clutch and a throttle valve used in the circuit
USRE32803E (en) * 1982-06-23 1988-12-20 Deere & Company Hydraulic circuit for activating a clutch and a throttle valve used in the circuit
CN103195735A (en) * 2013-04-17 2013-07-10 江苏振华泵业制造有限公司 Internal reflux valve for self-priming pump
CN103195735B (en) * 2013-04-17 2015-05-20 江苏振华泵业制造有限公司 Internal reflux valve for self-priming pump

Also Published As

Publication number Publication date
JPS5337575B1 (en) 1978-10-09
DE1650612B2 (en) 1974-02-28
CS167879B2 (en) 1976-05-28
DE1650612A1 (en) 1970-11-05
SE354904B (en) 1973-03-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years