GB1237562A - A variable orifice device - Google Patents

A variable orifice device

Info

Publication number
GB1237562A
GB1237562A GB3980/70A GB398070A GB1237562A GB 1237562 A GB1237562 A GB 1237562A GB 3980/70 A GB3980/70 A GB 3980/70A GB 398070 A GB398070 A GB 398070A GB 1237562 A GB1237562 A GB 1237562A
Authority
GB
United Kingdom
Prior art keywords
spool
holes
bore
june
successively close
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
GB3980/70A
Other languages
English (en)
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB1237562A publication Critical patent/GB1237562A/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
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/465—Automatic regulation in accordance with output requirements for achieving a target input speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
    • B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
    • B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
    • B62D11/183—Control systems therefor
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • 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
    • F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • F16H59/22—Idle position
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/423—Motor capacity control by fluid pressure 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/433—Pump capacity control by fluid pressure 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/472—Automatic regulation in accordance with output requirements for achieving a target output torque

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Control Of Fluid Gearings (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
  • Control Of Transmission Device (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Safety Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Servomotors (AREA)
GB3980/70A 1967-06-14 1968-06-14 A variable orifice device Expired GB1237562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64591267A 1967-06-14 1967-06-14

Publications (1)

Publication Number Publication Date
GB1237562A true GB1237562A (en) 1971-06-30

Family

ID=24590967

Family Applications (4)

Application Number Title Priority Date Filing Date
GB3980/70A Expired GB1237562A (en) 1967-06-14 1968-06-14 A variable orifice device
GB3982/70A Expired GB1237564A (en) 1967-06-14 1968-06-14 A relief and replenishing component for hydrostatic transmission
GB3981/70A Expired GB1237563A (en) 1967-06-14 1968-06-14 Hydrostatic transmission control system
GB03583/68A Expired GB1237561A (en) 1967-06-14 1968-06-14 Hydrostatic transmission control system

Family Applications After (3)

Application Number Title Priority Date Filing Date
GB3982/70A Expired GB1237564A (en) 1967-06-14 1968-06-14 A relief and replenishing component for hydrostatic transmission
GB3981/70A Expired GB1237563A (en) 1967-06-14 1968-06-14 Hydrostatic transmission control system
GB03583/68A Expired GB1237561A (en) 1967-06-14 1968-06-14 Hydrostatic transmission control system

Country Status (8)

Country Link
US (1) US3477225A (cg-RX-API-DMAC10.html)
JP (3) JPS4935657B1 (cg-RX-API-DMAC10.html)
BE (1) BE715211A (cg-RX-API-DMAC10.html)
CH (1) CH472607A (cg-RX-API-DMAC10.html)
DE (3) DE1725040C2 (cg-RX-API-DMAC10.html)
ES (1) ES353915A1 (cg-RX-API-DMAC10.html)
FR (1) FR1562715A (cg-RX-API-DMAC10.html)
GB (4) GB1237562A (cg-RX-API-DMAC10.html)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592281A (en) * 1969-06-17 1971-07-13 Gen Motors Corp Hydromechanical transmission control
US3606755A (en) * 1970-03-16 1971-09-21 Sperry Rand Corp Power transmission
US3653208A (en) * 1970-06-26 1972-04-04 Philip A Kubik Fluid system
US3713295A (en) * 1971-04-26 1973-01-30 Caterpillar Tractor Co Pressure and/or flow compensating means
DE2141724A1 (de) * 1971-08-20 1973-03-01 Bosch Gmbh Robert Steuer- und regeleinrichtung fuer eine hydropumpe
DE2152726C2 (de) * 1971-10-22 1974-12-19 Hydromatik Gmbh, 7900 Ulm Antriebsanlage mit mindestens zwei hydrostatischen Getrieben
BE793095A (fr) * 1971-12-23 1973-06-20 Caterpillar Tractor Co Procede et mecanisme d'ajustement de gain pour systeme de commande hydrostatique
US3771310A (en) * 1972-01-31 1973-11-13 Caterpillar Tractor Co Hydrostatic drive control system
US3862645A (en) * 1972-03-23 1975-01-28 Caterpillar Tractor Co Pilot control valve
US3785754A (en) * 1972-04-27 1974-01-15 Caterpillar Tractor Co Manual override system for a variable volume pump
DE2231421C3 (de) * 1972-06-27 1981-04-23 Robert Bosch Gmbh, 7000 Stuttgart Hydrostatisches Getriebe
US3803841A (en) * 1972-07-10 1974-04-16 Caterpillar Tractor Co Steering actuated motor displacement control valve
US3881317A (en) * 1973-10-25 1975-05-06 Automation Equipment Inc Control system for variable displacement hydraulic pump
US3877224A (en) * 1973-12-21 1975-04-15 Caterpillar Tractor Co Single pump hydrostatic transmission control and supply system
US3935707A (en) * 1974-07-22 1976-02-03 General Signal Corporation Hydraulic control system
US3935706A (en) * 1974-07-22 1976-02-03 General Signal Corporation Hydraulic control system
DE2449464A1 (de) * 1974-10-19 1976-05-06 Kloeckner Humboldt Deutz Ag Hydrostatisches fahrzeuggetriebe
DE2451204A1 (de) * 1974-10-29 1976-05-20 Kloeckner Humboldt Deutz Ag Steuereinrichtung fuer ein aus einer brennkraftmaschine und einem hydrostatischen getriebe gebildetes antriebs-aggregat
US3927527A (en) * 1975-01-17 1975-12-23 Caterpillar Tractor Co Mechanical multiplier-design II
US3952515A (en) * 1975-02-20 1976-04-27 Caterpillar Tractor Co. Speed and load responsive underspeed actuator for hydrostatic transmissions
US3952514A (en) * 1975-02-20 1976-04-27 Caterpillar Tractor Co. Underspeed actuator for hydrostatic transmission
US3996743A (en) * 1975-02-20 1976-12-14 Caterpillar Tractor Co. Underspeed actuator with part throttle control
US4185521A (en) * 1975-03-10 1980-01-29 Caterpillar Tractor Co. Hydraulic control system for a hydrostatic-mechanical transmission
DE2522719C2 (de) * 1975-05-22 1986-06-05 Linde Ag, 6200 Wiesbaden Steuereinrichtung
US4203293A (en) * 1975-09-02 1980-05-20 Caterpillar Tractor Co. Controls for combined hydrostatic and multiple speed range transmission units with automatic speed control and braking functions
US4080850A (en) * 1975-09-02 1978-03-28 Caterpillar Tractor Co. Controls for combined hydrostatic and multiple speed range transmission units with automatic speed control and braking functions
US4009730A (en) * 1975-10-03 1977-03-01 Caterpillar Tractor Co. Combination pressure control selector valve
US4174762A (en) * 1977-02-02 1979-11-20 Caterpillar Tractor Co. Hydrostatic transmission with differential steering
DD133350B1 (de) * 1977-09-23 1981-07-29 Manfred Otto Hydrostatisches getriebe,insbesondere zum antrieb von fahrzeugen
US4309917A (en) * 1979-12-11 1982-01-12 General Motors Corporation Transmission and control system
US4530416A (en) * 1983-05-23 1985-07-23 Fmc Corporation Hydrostatic propulsion system and method with inching throttle and brake
US4699021A (en) * 1984-09-20 1987-10-13 Avco Corporation Integrated power system
DE3447366A1 (de) * 1984-12-24 1986-07-03 Linde Ag, 6200 Wiesbaden Steuereinrichtung fuer ein hydrostatisches getriebe
US4700794A (en) * 1986-07-14 1987-10-20 Caterpillar Inc. Vehicle steering apparatus
DE3743569A1 (de) * 1987-12-22 1989-07-13 Alfred Schmidt Schiebeventil mit mengenregulierung
US4936095A (en) * 1988-10-28 1990-06-26 Eaton Corporation Hydrostatic transmission system and power limiter control therefor
US5787374A (en) * 1995-10-25 1998-07-28 Caterpillar Paving Products, Inc. Propulsion control apparatus and method for a paver
USRE38632E1 (en) * 1995-10-25 2004-10-19 Caterpillar Paving Products Inc Propulsion control apparatus and method for a paver
US6540633B1 (en) 1998-09-25 2003-04-01 Tuff Torq Corporation Transmission for speed changing and steering of a vehicle
US6397966B1 (en) * 1999-01-22 2002-06-04 Kanzaki Kokyukoki, Mfg. Co., Ltd. Vehicle improved in steering
EP1439337B1 (en) * 2001-10-22 2008-05-21 Yanmar Agricultural Equipment Co., Ltd. Hydraulic transmission vehicle
JP3950358B2 (ja) 2002-04-24 2007-08-01 株式会社 神崎高級工機製作所 作業車の操向装置
FR2861816B1 (fr) * 2003-11-04 2006-04-14 Bosch Rexroth Dsi Sas Distributeur hydraulique comprenant un element d'entree avec valve de balayage
JP4285553B2 (ja) * 2007-03-20 2009-06-24 いすゞ自動車株式会社 クラッチ制御装置の流量制御弁
US8800694B1 (en) 2011-11-01 2014-08-12 Hydro-Gear Limited Partnership Automatic torque compensating drive system
US20170037963A1 (en) * 2015-08-05 2017-02-09 Caterpillar Inc. Mechanically Coupled Multi-Variator Actuation
US10801617B2 (en) 2018-01-05 2020-10-13 Cnh Industrial America Llc Propel system with active pump displacement control for balancing propel pump pressures in agricultural vehicles

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126707A (en) * 1964-03-31 Hydrostatic transmission
US2562615A (en) * 1948-12-06 1951-07-31 New York Air Brake Co Hydraulic control system responsive to pressure and flow rate
US2659425A (en) * 1949-08-22 1953-11-17 Lucas Ltd Joseph Liquid fuel regulating means for use with prime movers
DE904739C (de) * 1951-09-18 1954-02-22 Heinrich Ebert Dr Ing UEberstroemventil fuer stufenlos einstellbare hydrostatische Getriebe, insbesondere in Fahrzeugen
DE1045755B (de) * 1956-09-20 1958-12-04 Schloemann Ag Absperr- und Regelventil mit Betaetigung durch das durchfliessende Druckmittel und Steuerung durch einen Hilfsschieber
DE1179404B (de) * 1959-04-29 1964-10-08 Grundstuecksverwaltungsgesells Ventilanordnung zur Aufrechterhaltung eines konstanten Druckes in einem Raum veraender-lichen Volumens
AT236726B (de) * 1961-04-01 1964-11-10 Beien Maschfab Hydraulisches Getriebe für ortsbewegliche Anlagen
US3065700A (en) 1961-04-11 1962-11-27 Fairchild Stratos Corp Hydrostatic steering arrangement
US3182454A (en) * 1961-07-18 1965-05-11 Lely Nv C Van Der Controlling mechanisms and hydraulically operated power transmission systems
GB1045278A (en) * 1962-09-26 1966-10-12 Dowty Hydraulic Units Ltd Power transmission
SE332359B (cg-RX-API-DMAC10.html) 1964-12-03 1971-02-01 Bofors Ab Ab
US3247919A (en) 1963-11-21 1966-04-26 Sundstrand Corp Hydrostatic transmission
US3230699A (en) * 1964-01-21 1966-01-25 Sundstrand Corp Hydrostatic transmission
FR1416391A (fr) * 1964-07-28 1965-11-05 Citroen Sa Andre Perfectionnements à la régulation des transmissions hydrauliques à barillet
DE1224622B (de) * 1964-11-20 1966-09-08 Lucas Industries Ltd Hydrostatischer Antrieb fuer Fahrzeuge
US3284999A (en) * 1966-02-01 1966-11-15 Sundstrand Corp Hydrostatic transmission

Also Published As

Publication number Publication date
US3477225A (en) 1969-11-11
DE1725041C2 (de) 1980-10-16
DE1725040B1 (de) 1980-06-19
ES353915A1 (es) 1970-02-01
GB1237561A (en) 1971-06-30
JPS5111269B1 (cg-RX-API-DMAC10.html) 1976-04-09
DE1750554A1 (de) 1971-02-25
DE1750554C3 (de) 1979-03-08
FR1562715A (cg-RX-API-DMAC10.html) 1969-04-04
DE1725041B1 (de) 1980-02-21
BE715211A (cg-RX-API-DMAC10.html) 1968-11-18
JPS4935657B1 (cg-RX-API-DMAC10.html) 1974-09-25
DE1725040C2 (de) 1981-02-26
GB1237564A (en) 1971-06-30
CH472607A (de) 1969-05-15
GB1237563A (en) 1971-06-30
JPS5111270B1 (cg-RX-API-DMAC10.html) 1976-04-09
DE1750554B2 (de) 1978-07-06

Similar Documents

Publication Publication Date Title
GB1237562A (en) A variable orifice device
GB1163419A (en) Metering Valve
GB1383490A (en) Pumps
GB1222779A (en) Pressure compensated control valve
GB1490553A (en) Fluid flow apparatus
GB1265544A (cg-RX-API-DMAC10.html)
GB1397700A (en) Fuel injection system
GB1309162A (en) Fluid flow-regulating valves
GB1422273A (en) Hydraulic control valves
GB1299658A (en) Hydraulic flow-operated shut-off device
US3156262A (en) Flow control valves
GB1067308A (en) Flow control valve
US3227179A (en) Cartridge valves
GB1394594A (en) Double-flow hydraulic operating system
US2583242A (en) Pressure seated reversing valve
ES439244A1 (es) Mejoras introducidas en mandos electricos para valvulas de paso accionadas hidraulicamente.
GB1235846A (en) Liquid supply apparatus
GB1031667A (en) Hydraulic motor system with delayed pressure loading
FR2253413A5 (en) Pressure controlled flow regulator for liquid filter circuit - progressively reduces flow as filter pressure increases
GB1249963A (en) Multiway valve
US3386457A (en) Servovalve having floating ring pilot stage
US3881508A (en) Throttle valve arrangement
GB1434101A (en) Valves for fluids
GB944167A (en) Improvements in or relating to hydraulic circuits
GB1360082A (en) Valves for fluids