USB535386I5 - - Google Patents

Info

Publication number
USB535386I5
USB535386I5 US53538674A USB535386I5 US B535386 I5 USB535386 I5 US B535386I5 US 53538674 A US53538674 A US 53538674A US B535386 I5 USB535386 I5 US B535386I5
Authority
US
United States
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.)
Pending
Application number
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 filed Critical
Priority to US05/535,386 priority Critical patent/US3981150A/en
Priority to JP50147949A priority patent/JPS5184101A/ja
Publication of USB535386I5 publication Critical patent/USB535386I5/en
Application granted granted Critical
Publication of US3981150A publication Critical patent/US3981150A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/6454—Towed (i.e. pulled or pushed) scrapers
    • E02F3/6481—Towed (i.e. pulled or pushed) scrapers with scraper bowls with an ejector having translational movement for dumping the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/65—Component parts, e.g. drives, control devices
    • E02F3/651—Hydraulic or pneumatic drives; Electric or electro-mechanical control devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/65—Component parts, e.g. drives, control devices
    • E02F3/654—Scraper bowls and components mounted on them
    • E02F3/655—Loading or elevator mechanisms
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30585—Assemblies of multiple valves having a single valve for multiple output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058—Rotary output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
    • F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
US05/535,386 1974-12-23 1974-12-23 Dual hydraulic motor drive system Expired - Lifetime US3981150A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US05/535,386 US3981150A (en) 1974-12-23 1974-12-23 Dual hydraulic motor drive system
JP50147949A JPS5184101A (en) 1974-12-23 1975-12-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/535,386 US3981150A (en) 1974-12-23 1974-12-23 Dual hydraulic motor drive system

Publications (2)

Publication Number Publication Date
USB535386I5 true USB535386I5 (en) 1976-01-13
US3981150A US3981150A (en) 1976-09-21

Family

ID=24133954

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/535,386 Expired - Lifetime US3981150A (en) 1974-12-23 1974-12-23 Dual hydraulic motor drive system

Country Status (2)

Country Link
US (1) US3981150A (en)
JP (1) JPS5184101A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224411A (en) * 1991-06-10 1993-07-06 Poclain Hydraulics Hydraulic circuit for supplying at least one hydraulic motor incorporating "disengageable" pistons
US5289680A (en) * 1990-03-09 1994-03-01 Kubota Corporation Two pump hydraulic system with relief valves having different relief pressures
US5946911A (en) * 1997-01-07 1999-09-07 Valeo Electrical Systems, Inc. Fluid control system for powering vehicle accessories
US5960628A (en) * 1995-03-09 1999-10-05 Valeo Electrical Systems, Inc. Hydraulically powered fan and power steering in vehicle
US6016657A (en) * 1995-03-09 2000-01-25 Valeo Electrical Systems, Inc. Automotive hydraulic system and method
US6021641A (en) * 1995-03-09 2000-02-08 Buschur; Jeffrey J. Hydraulically powered fan system for vehicles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6629411B2 (en) 2001-05-09 2003-10-07 Valeo Electrical Systems, Inc. Dual displacement motor control

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US27334A (en) * 1860-02-28 Henry d
US2370526A (en) * 1942-02-20 1945-02-27 Gen Electric Hydraulic torque transmission arrangement
US2374588A (en) * 1942-08-22 1945-04-24 Gen Electric Hydraulic torque transmission arrangement
US2643516A (en) * 1951-12-08 1953-06-30 Goodman Mfg Co Fluid pressure system
US3129781A (en) * 1962-11-16 1964-04-21 Applied Power Ind Inc Hydrostatic differential transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US27334A (en) * 1860-02-28 Henry d
US2370526A (en) * 1942-02-20 1945-02-27 Gen Electric Hydraulic torque transmission arrangement
US2374588A (en) * 1942-08-22 1945-04-24 Gen Electric Hydraulic torque transmission arrangement
US2643516A (en) * 1951-12-08 1953-06-30 Goodman Mfg Co Fluid pressure system
US3129781A (en) * 1962-11-16 1964-04-21 Applied Power Ind Inc Hydrostatic differential transmission

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289680A (en) * 1990-03-09 1994-03-01 Kubota Corporation Two pump hydraulic system with relief valves having different relief pressures
US5224411A (en) * 1991-06-10 1993-07-06 Poclain Hydraulics Hydraulic circuit for supplying at least one hydraulic motor incorporating "disengageable" pistons
US5960628A (en) * 1995-03-09 1999-10-05 Valeo Electrical Systems, Inc. Hydraulically powered fan and power steering in vehicle
US6016657A (en) * 1995-03-09 2000-01-25 Valeo Electrical Systems, Inc. Automotive hydraulic system and method
US6021641A (en) * 1995-03-09 2000-02-08 Buschur; Jeffrey J. Hydraulically powered fan system for vehicles
US6158216A (en) * 1995-03-09 2000-12-12 Valeo Electrical Systems, Inc. Hydraulically powered fan system for vehicles
US5946911A (en) * 1997-01-07 1999-09-07 Valeo Electrical Systems, Inc. Fluid control system for powering vehicle accessories

Also Published As

Publication number Publication date
JPS5184101A (en) 1976-07-23
US3981150A (en) 1976-09-21

Similar Documents

Publication Publication Date Title
FR2274120B1 (en)
FR2280507B1 (en)
JPS5184101A (en)
FR2270239B1 (en)
JPS50109600A (en)
FR2272842A1 (en)
JPS50103570A (en)
FR2276082B1 (en)
JPS50118541U (en)
JPS50126456U (en)
JPS50108393A (en)
JPS50116010U (en)
JPS50103397U (en)
JPS50130012A (en)
JPS50110019U (en)
JPS50129400U (en)
JPS50130452U (en)
CS171061B1 (en)
CH564999A5 (en)
BG22667A1 (en)
CH1666774A4 (en)
CH532175A4 (en)
CH579884A5 (en)
CH566121A5 (en)
BG22084A3 (en)

Legal Events

Date Code Title Description
AS Assignment

Owner name: CATERPILLAR INC., 100 N.E. ADAMS STREET, PEORIA, I

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515

Owner name: CATERPILLAR INC., A CORP. OF DE.,ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515