SE373914B - - Google Patents

Info

Publication number: SE373914B
Authority: SE; Sweden

Application number

SE1591071A

Inventor

H Knebel

Original Assignee

Aviat Gmbh

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.)

1970-12-16

Filing date

1971-12-13

Publication date

1975-02-17

1971-12-13 Application filed by Aviat Gmbh filed Critical Aviat Gmbh

1975-02-17 Publication of SE373914B publication Critical patent/SE373914B/xx

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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
- F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working 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
- 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
- F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
- 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
- F15B2211/30505—Non-return valves, i.e. check 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
- 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
- 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
- F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Actuator (AREA)

SE1591071A 1970-12-16 1971-12-13 SE373914B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19702061883 DE2061883C3 (en)	1970-12-16	1970-12-16	Hydraulic or pneumatic working cylinder

Publications (1)

Publication Number	Publication Date
SE373914B true SE373914B (en)	1975-02-17

Family

ID=5791134

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE1591071A SE373914B (en)	1970-12-16	1971-12-13

Country Status (4)

Country	Link
DE (1)	DE2061883C3 (en)
FR (1)	FR2118094B1 (en)
IT (1)	IT940938B (en)
SE (1)	SE373914B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2538223C2 (en) *	1975-08-28	1984-12-20	Aviatest GmbH, 4000 Düsseldorf	Hydraulic or pneumatic working cylinder with high working frequency
DE3130931C2 (en) *	1981-08-05	1986-06-19	Aviatest GmbH, 4000 Düsseldorf	Hydraulic drive for coating presses with at least one or more idle stroke power stroke cylinders
US5197371A (en) *	1988-03-28	1993-03-30	U.S. Philips Corporation	Force limiter and ultrasonic device provided with a force limiter
US5293809A (en) *	1988-03-28	1994-03-15	U.S. Philips Corporation	Method of limiting a contact force
DE4104856A1 (en) *	1991-02-16	1991-10-31	Krupp Maschinentechnik	DRIVE DEVICE FOR A DEMOLITION TOOL
EP3770444B1 (en)	2019-07-23	2022-08-31	BEUMER Group GmbH & Co. KG	Arrangement with a pneumatic or hydraulic piston rod cylinder
EP3770445B1 (en)	2019-07-23	2022-05-25	BEUMER Group GmbH & Co. KG	Arrangement with a pneumatic or hydraulic piston rod cylinder
US11242870B2 (en) *	2020-05-27	2022-02-08	NORWOOD SALES, Inc.	Cylinder bypass

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE802606C (en) *	1949-10-15	1951-02-15	Karl Geisel	Piston gear with rapid stroke and high pressure force at the end of the stroke

1970
- 1970-12-16 DE DE19702061883 patent/DE2061883C3/en not_active Expired
1971
- 1971-09-24 IT IT5306471A patent/IT940938B/en active
- 1971-12-13 SE SE1591071A patent/SE373914B/xx unknown
- 1971-12-15 FR FR7145035A patent/FR2118094B1/fr not_active Expired

Also Published As

Publication number	Publication date
DE2061883A1 (en)	1972-06-22
FR2118094A1 (en)	1972-07-28
DE2061883C3 (en)	1974-03-14
FR2118094B1 (en)	1976-06-04
DE2061883B2 (en)	1973-08-23
IT940938B (en)	1973-02-20

Publication	Publication Date	Title
ATA96471A (en)	1973-02-15
AU1146470A (en)	1971-08-19
AU2044470A (en)	1972-03-30
AU1326870A (en)	1971-10-28
AU2130570A (en)	1972-04-27
AU2085370A (en)	1972-04-13
AU2017870A (en)	1972-03-23
AU1833270A (en)	1972-02-10
AU1716970A (en)	1972-01-06
AU1517670A (en)	1971-11-18
AU1336970A (en)	1971-10-07
AR195465A1 (en)	1973-10-15
AU1591370A (en)	1971-12-09
AU1064870A (en)	1971-07-29
AU2144270A (en)	1972-04-27
AU2131570A (en)	1972-04-27
AU2130770A (en)	1972-04-27
AU1328670A (en)	1971-10-07
AU1277070A (en)	1971-09-23
AU1343870A (en)	1971-10-07
AU1247570A (en)	1971-09-16
ATA672271A (en)	1973-12-15
AU2119370A (en)	1972-04-20
AU1581370A (en)	1971-12-09
AU1235770A (en)	1971-09-16