CH614021A5 - Oleopneumatic control cylinder - Google Patents

Oleopneumatic control cylinder

Info

Publication number
CH614021A5
CH614021A5 CH1026677A CH1026677A CH614021A5 CH 614021 A5 CH614021 A5 CH 614021A5 CH 1026677 A CH1026677 A CH 1026677A CH 1026677 A CH1026677 A CH 1026677A CH 614021 A5 CH614021 A5 CH 614021A5
Authority
CH
Switzerland
Prior art keywords
chamber
piston
oil
cylinder
rod
Prior art date
Application number
CH1026677A
Inventor
Markus Imoberdorf
Original Assignee
Imoberdorf & 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 Imoberdorf & Co filed Critical Imoberdorf & Co
Priority to CH1026677A priority Critical patent/CH614021A5/en
Priority to DE19772757690 priority patent/DE2757690C2/en
Priority to FR7824363A priority patent/FR2401345A1/en
Publication of CH614021A5 publication Critical patent/CH614021A5/en

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
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/076—Combined pneumatic-hydraulic systems with pneumatic drive or displacement and speed control or stopping by hydraulic braking
    • 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
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/7055—Linear output members having more than two chambers
    • 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
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
    • F15B2211/8855—Compressible fluids, e.g. specific to pneumatics

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

The cylinder (1) is divided into two chambers (8 and 9). A piston with a rod, moving in the chamber (9), expels in front of it oil which passes from this chamber into the chamber (8). The latter also encloses a piston (41) engaged freely on the rod (33) of the first piston. This rod is further used as a bearing point (38) for springs (39) housed in the said chamber (8) and which interact with the said second piston (41) in order to maintain a certain pressure in the oil contained in the cylinder when it is at rest. The springs (39) in fact act on the piston (41) in order to move it towards the right of the figure and slightly compress the oil in the part of the chamber (8) located on the right-hand side of the piston (41) and in the chamber (9). Thus, if oil leaks occur, they do not cause voids in the oil chamber, which generate jerks in the operation of the cylinder, whether it be during fast approaching advance or slow working advance. <IMAGE>
CH1026677A 1977-08-22 1977-08-22 Oleopneumatic control cylinder CH614021A5 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH1026677A CH614021A5 (en) 1977-08-22 1977-08-22 Oleopneumatic control cylinder
DE19772757690 DE2757690C2 (en) 1977-08-22 1977-12-22 Hydropneumatic control cylinder
FR7824363A FR2401345A1 (en) 1977-08-22 1978-08-22 Oleopneumatic control ram for machine tool - has piston in second chamber coupled to first piston rod to maintain oil pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1026677A CH614021A5 (en) 1977-08-22 1977-08-22 Oleopneumatic control cylinder

Publications (1)

Publication Number Publication Date
CH614021A5 true CH614021A5 (en) 1979-10-31

Family

ID=4361327

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1026677A CH614021A5 (en) 1977-08-22 1977-08-22 Oleopneumatic control cylinder

Country Status (3)

Country Link
CH (1) CH614021A5 (en)
DE (1) DE2757690C2 (en)
FR (1) FR2401345A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD65871A (en) *
US3190077A (en) * 1963-01-04 1965-06-22 Harold W Scholin Fluid motor

Also Published As

Publication number Publication date
DE2757690A1 (en) 1979-03-08
DE2757690C2 (en) 1986-11-20
FR2401345A1 (en) 1979-03-23
FR2401345B3 (en) 1981-04-30

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Legal Events

Date Code Title Description
PL Patent ceased