EP0769625A3 - A rotary fluid actuator - Google Patents

A rotary fluid actuator Download PDF

Info

Publication number
EP0769625A3
EP0769625A3 EP96115678A EP96115678A EP0769625A3 EP 0769625 A3 EP0769625 A3 EP 0769625A3 EP 96115678 A EP96115678 A EP 96115678A EP 96115678 A EP96115678 A EP 96115678A EP 0769625 A3 EP0769625 A3 EP 0769625A3
Authority
EP
European Patent Office
Prior art keywords
rotary fluid
fluid actuator
piston
sliding block
actuator
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.)
Withdrawn
Application number
EP96115678A
Other languages
German (de)
French (fr)
Other versions
EP0769625A2 (en
Inventor
Lodovico Armando
Massimo Armando
Valerio Armando
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.)
Nord Engineering Di Armando Lodovico and C SNC
Original Assignee
Nord Engineering Di Armando Lodovico and C SNC
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 Nord Engineering Di Armando Lodovico and C SNC filed Critical Nord Engineering Di Armando Lodovico and C SNC
Publication of EP0769625A2 publication Critical patent/EP0769625A2/en
Publication of EP0769625A3 publication Critical patent/EP0769625A3/en
Withdrawn legal-status Critical Current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
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/068—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the helical type

Abstract

A rotary fluid actuator comprises a body (3) defining a cylindrical chamber (9) in which a piston (13) can slide axially. A surface of the piston (13) has at least one helical groove (15) cooperating with a sliding block (18) of complementary shape fixed removably to the body (3) of the actuator (1). Each sliding block is preferably made of an anti-friction material.
EP96115678A 1995-10-02 1996-09-30 A rotary fluid actuator Withdrawn EP0769625A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO950781 1995-10-02
IT95TO000781A IT1281373B1 (en) 1995-10-02 1995-10-02 ROTARY FLUID ACTUATOR

Publications (2)

Publication Number Publication Date
EP0769625A2 EP0769625A2 (en) 1997-04-23
EP0769625A3 true EP0769625A3 (en) 1998-06-03

Family

ID=11413845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115678A Withdrawn EP0769625A3 (en) 1995-10-02 1996-09-30 A rotary fluid actuator

Country Status (2)

Country Link
EP (1) EP0769625A3 (en)
IT (1) IT1281373B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6370801B1 (en) * 1999-11-23 2002-04-16 1994 Weyer Family Limited Partnership Hydraulic collection tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765778A (en) * 1954-09-17 1956-10-09 Julian E Gerry Hydraulic actuated steering mechanism
DE1052913B (en) * 1957-08-30 1959-03-12 Karl Marx Stadt Maschf Hydraulic feed device, especially for peeling knives in centrifuges
US3731546A (en) * 1971-12-01 1973-05-08 Sundstrand Corp Power operable pivot joint
DE7511630U (en) * 1977-10-27 Niederheide, Gustav, 4322 Sprockhoevel
DE8103188U1 (en) * 1981-08-27 Eckart GmbH & Co KG, 6490 Schlüchtern Pressure fluid operated swivel motor
US4373426A (en) * 1978-11-13 1983-02-15 Weyer Paul P Rotary actuator
DE8601050U1 (en) * 1986-01-17 1986-03-27 Post, Hermann, 6480 Wächtersbach Pressure fluid operated swivel motor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7511630U (en) * 1977-10-27 Niederheide, Gustav, 4322 Sprockhoevel
DE8103188U1 (en) * 1981-08-27 Eckart GmbH & Co KG, 6490 Schlüchtern Pressure fluid operated swivel motor
US2765778A (en) * 1954-09-17 1956-10-09 Julian E Gerry Hydraulic actuated steering mechanism
DE1052913B (en) * 1957-08-30 1959-03-12 Karl Marx Stadt Maschf Hydraulic feed device, especially for peeling knives in centrifuges
US3731546A (en) * 1971-12-01 1973-05-08 Sundstrand Corp Power operable pivot joint
US4373426A (en) * 1978-11-13 1983-02-15 Weyer Paul P Rotary actuator
DE8601050U1 (en) * 1986-01-17 1986-03-27 Post, Hermann, 6480 Wächtersbach Pressure fluid operated swivel motor

Also Published As

Publication number Publication date
EP0769625A2 (en) 1997-04-23
ITTO950781A1 (en) 1997-04-02
IT1281373B1 (en) 1998-02-18
ITTO950781A0 (en) 1995-10-02

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