ES358285A1 - Hydraulic cylinders having a quick exhaust - Google Patents

Hydraulic cylinders having a quick exhaust

Info

Publication number
ES358285A1
ES358285A1 ES358285A ES358285A ES358285A1 ES 358285 A1 ES358285 A1 ES 358285A1 ES 358285 A ES358285 A ES 358285A ES 358285 A ES358285 A ES 358285A ES 358285 A1 ES358285 A1 ES 358285A1
Authority
ES
Spain
Prior art keywords
valve
acting
chamber
motor
stroke
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
ES358285A
Other languages
Spanish (es)
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.)
BILLINS
Original Assignee
BILLINS
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 BILLINS filed Critical BILLINS
Publication of ES358285A1 publication Critical patent/ES358285A1/en
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
    • 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
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder
    • 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
    • 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
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

In a double or single -acting hydraulic motor comprising a cylinder 10 having a piston 21 slidable therein and provided with a hollow piston rod 49, a variable volume auxiliary reservoir chamber 61 is provided in the hollow rod to receive through a valve 38 part of the hydraulic fluid exhausted from the main cylinder chamber 60 when the motor performs a retraction stroke, whereby this stroke is performed at high speed. In the double-acting motor shown, the valve 38 is opened during the retraction stroke by movement of a coupled valve 37 to its closed position. The valve 37 is closed by the fluid pressure causing retraction, which fluid is admitted to annular spaces 55, 56 through a line 15 controlled by a distributer valve 13. If the motor is single-acting the valve 37 is omitted and the valve 38 is spring loaded to its open position. To perform an extension stroke the distributer 14 is operated to direct fluid to the chamber 60, the valve 38 closes, and hydraulic fluid in the chamber 61 is expelled through bores 26, 28, 27 in the piston 21 to the line 15 connected directly (single-acting) or indirectly via distributer 14 (double-acting) to the main reservoir 18.
ES358285A 1967-09-19 1968-09-18 Hydraulic cylinders having a quick exhaust Expired ES358285A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67267767A 1967-09-19 1967-09-19

Publications (1)

Publication Number Publication Date
ES358285A1 true ES358285A1 (en) 1970-04-16

Family

ID=24699547

Family Applications (1)

Application Number Title Priority Date Filing Date
ES358285A Expired ES358285A1 (en) 1967-09-19 1968-09-18 Hydraulic cylinders having a quick exhaust

Country Status (7)

Country Link
US (1) US3447424A (en)
BE (1) BE720866A (en)
BR (1) BR6802342D0 (en)
ES (1) ES358285A1 (en)
FR (1) FR1581872A (en)
GB (1) GB1211127A (en)
SE (1) SE339628B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592108A (en) * 1969-02-07 1971-07-13 Borje Oscar Rosaen Fluid cylinder
US4258609A (en) * 1977-10-11 1981-03-31 Conway John P Dual speed hydraulic piston assembly
JPH0276903A (en) * 1988-09-09 1990-03-16 Teijin Seiki Co Ltd Servo-actuator
FI99266C (en) * 1996-03-15 1998-02-10 Tamrock Oy Arrangement in a pressure medium cylinder
CN102367825B (en) * 2011-11-04 2013-07-10 武汉工程大学 Reversing type impact air cylinder with built-in valve
US20130247753A1 (en) * 2012-03-22 2013-09-26 Actuant Corporation Fluid Cylinder Assembly Having Automatic Stroke Shutoff
CN104043973B (en) * 2014-06-04 2016-08-17 洛阳利维科技有限公司 A kind of force-doubling type concentric piston rod oil cylinder moves the device of big load operation platform
US20190322497A1 (en) * 2016-12-30 2019-10-24 Xuzhou Heavy Machinery Co., Ltd. Hydraulic cylinder, hydraulic system, and crane
CN107654542A (en) * 2017-10-11 2018-02-02 长治市潞安合力机械有限责任公司 A kind of fast discharge opeing compressing cylinder of monorail crane

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6532A (en) * 1849-06-19 Washing-machine
US2932281A (en) * 1958-06-25 1960-04-12 North American Aviation Inc Double-acting actuator means
US3240008A (en) * 1963-04-08 1966-03-15 Wayne W Mcmullen Control system for a material handling vehicle

Also Published As

Publication number Publication date
GB1211127A (en) 1970-11-04
FR1581872A (en) 1969-09-19
BR6802342D0 (en) 1973-04-12
SE339628B (en) 1971-10-11
US3447424A (en) 1969-06-03
BE720866A (en) 1969-03-13

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