FR2223579B1 - - Google Patents

Info

Publication number
FR2223579B1
FR2223579B1 FR7409192A FR7409192A FR2223579B1 FR 2223579 B1 FR2223579 B1 FR 2223579B1 FR 7409192 A FR7409192 A FR 7409192A FR 7409192 A FR7409192 A FR 7409192A FR 2223579 B1 FR2223579 B1 FR 2223579B1
Authority
FR
France
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
FR7409192A
Other languages
French (fr)
Other versions
FR2223579A1 (cg-RX-API-DMAC7.html
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.)
Eaton Corp
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Publication of FR2223579A1 publication Critical patent/FR2223579A1/fr
Application granted granted Critical
Publication of FR2223579B1 publication Critical patent/FR2223579B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1433—End caps
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • 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
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • 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
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/57—Control of a differential pressure
    • 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
    • F15B2211/575—Pilot pressure control
    • F15B2211/5753—Pilot pressure control for closing a 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
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
FR7409192A 1973-03-28 1974-03-19 Expired FR2223579B1 (cg-RX-API-DMAC7.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US345826A US3898915A (en) 1973-03-28 1973-03-28 Piston cylinder assembly

Publications (2)

Publication Number Publication Date
FR2223579A1 FR2223579A1 (cg-RX-API-DMAC7.html) 1974-10-25
FR2223579B1 true FR2223579B1 (cg-RX-API-DMAC7.html) 1979-09-28

Family

ID=23356653

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7409193A Expired FR2223578B1 (cg-RX-API-DMAC7.html) 1973-03-28 1974-03-19
FR7409192A Expired FR2223579B1 (cg-RX-API-DMAC7.html) 1973-03-28 1974-03-19

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR7409193A Expired FR2223578B1 (cg-RX-API-DMAC7.html) 1973-03-28 1974-03-19

Country Status (5)

Country Link
US (1) US3898915A (cg-RX-API-DMAC7.html)
JP (1) JPS5618810B2 (cg-RX-API-DMAC7.html)
DE (1) DE2414873A1 (cg-RX-API-DMAC7.html)
FR (2) FR2223578B1 (cg-RX-API-DMAC7.html)
GB (1) GB1404117A (cg-RX-API-DMAC7.html)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616234A1 (de) * 1986-05-14 1987-11-19 Bayerische Motoren Werke Ag Vorrichtung zur relativen drehlagenaenderung zweier in antriebsverbindung stehender wellen, insbesondere zwischen in einem maschinengehaeuse einer brennkraftmaschine gelagerten kurbelwelle und nockenwelle
GB8818518D0 (en) * 1988-08-04 1988-09-07 Robinson L K Improvements in/relating to ram units in transmission of toroidal race rolling traction type
SE509901C2 (sv) * 1994-06-15 1999-03-22 Multidoc Hydraulic Ab Hydraulisk kolvcylinder
DE102004003653A1 (de) * 2004-01-24 2005-08-18 Bosch Rexroth Teknik Ab Dämpfungselement, Dämpfungsanordnung und Druckmittelzylinder
JP5429830B2 (ja) * 2012-03-26 2014-02-26 株式会社伊丹精機 リフトシリンダ及びそれを備えたフォークリフト
US9194491B2 (en) * 2012-10-09 2015-11-24 Hamilton Sundstrand Corporation Multi-part piston
JP2020143738A (ja) * 2019-03-06 2020-09-10 株式会社ショーワ ピストン構造体及び船舶用推進装置の昇降装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2321079A (en) * 1940-01-30 1943-06-08 Harold A Greenwald Hydraulic door operator
US2319608A (en) * 1941-11-07 1943-05-18 Southwestern Eng Co Fluid motor
US2556698A (en) * 1945-02-05 1951-06-12 G F Goodson Piston construction
US2642845A (en) * 1950-12-20 1953-06-23 Westinghouse Air Brake Co Piston cushioning apparatus
US2984529A (en) * 1959-01-26 1961-05-16 Baldwin Rubber Co Unitary sealed piston
US3072108A (en) * 1961-10-02 1963-01-08 Bendix Corp Multi-position vacuum motor
US3143933A (en) * 1962-12-03 1964-08-11 Norton Engineering Inc Cylinder and sealing ring combination
US3329068A (en) * 1966-04-15 1967-07-04 Signode Corp Pneumatic piston return system for impact tools

Also Published As

Publication number Publication date
DE2414873A1 (de) 1974-10-10
JPS5618810B2 (cg-RX-API-DMAC7.html) 1981-05-01
GB1404117A (en) 1975-08-28
FR2223579A1 (cg-RX-API-DMAC7.html) 1974-10-25
JPS5025983A (cg-RX-API-DMAC7.html) 1975-03-18
FR2223578A1 (cg-RX-API-DMAC7.html) 1974-10-25
US3898915A (en) 1975-08-12
FR2223578B1 (cg-RX-API-DMAC7.html) 1978-01-13

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Legal Events

Date Code Title Description
ST Notification of lapse