ATE32369T1 - ROTARY PISTON CYLINDER. - Google Patents

ROTARY PISTON CYLINDER.

Info

Publication number
ATE32369T1
ATE32369T1 AT84307815T AT84307815T ATE32369T1 AT E32369 T1 ATE32369 T1 AT E32369T1 AT 84307815 T AT84307815 T AT 84307815T AT 84307815 T AT84307815 T AT 84307815T AT E32369 T1 ATE32369 T1 AT E32369T1
Authority
AT
Austria
Prior art keywords
piston
chamber
arm
piston head
piston cylinder
Prior art date
Application number
AT84307815T
Other languages
German (de)
Inventor
Giles Arthur Kendall
Original Assignee
Menasco Inc
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 Menasco Inc filed Critical Menasco Inc
Application granted granted Critical
Publication of ATE32369T1 publication Critical patent/ATE32369T1/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
    • 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
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
    • F15B15/125—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type of the curved-cylinder 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
    • 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

Abstract

A rotary actuator having a cylindrical housing (10) in which an annular piston (40, 58) rotates through an arc within an annular chamber (14) in the housing (10) as a result of fluid pressure to produce rotary motion communicated from the piston (40, 58) to the drive shaft (16). The piston head (58) is capable of lateral or radial movement relative to the piston arm (40) so as to accommodate flexing of the piston arm (40) or variances in the shape of the chamber (14). Friction reduction washers (80, 82) are placed between the piston head (58) and the piston arm (40) to facilitate this movement. The overall effect is to reduce the friction encountered by the piston head (58) against the walls of the chamber (14) during movement, thereby improving overall performance of the actuator.
AT84307815T 1984-11-12 1984-11-12 ROTARY PISTON CYLINDER. ATE32369T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84307815A EP0181971B1 (en) 1984-11-12 1984-11-12 Rotary actuator

Publications (1)

Publication Number Publication Date
ATE32369T1 true ATE32369T1 (en) 1988-02-15

Family

ID=8192805

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84307815T ATE32369T1 (en) 1984-11-12 1984-11-12 ROTARY PISTON CYLINDER.

Country Status (3)

Country Link
EP (1) EP0181971B1 (en)
AT (1) ATE32369T1 (en)
DE (1) DE3469206D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671145B1 (en) * 1990-12-28 1993-04-23 Europ Propulsion ROTARY ACTUATION DEVICE WITH ANNULAR PISTON ROD.
AU2825799A (en) 1998-03-11 1999-09-27 Eugen Rost Drive arrangement actuated by a medium under pressure
CA2613424C (en) * 2005-06-30 2014-02-11 James Antony Kells Toroidal ram actuator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US163186A (en) * 1875-05-11 Improvement in oscillating engines
FR522037A (en) * 1920-05-20 1921-07-24 Alphonse Haas Piston
US2649077A (en) * 1951-07-30 1953-08-18 North American Aviation Inc Piston assembly for oscillatory hydraulic actuators
GB1122723A (en) * 1965-12-13 1968-08-07 Sneen Franz Improvements in and relating to oscillatory piston fluid-driven motors
US3446120A (en) * 1965-12-13 1969-05-27 Franz Sneen Oscillating fluid-driven actuator
GB1140283A (en) * 1966-01-17 1969-01-15 Associated Cargo Gear Aktiebol Improvements in or relating to pneumatic or hydraulic servo-motors
FR2076326A5 (en) * 1970-01-09 1971-10-15 Usinage Rationnel
FR2253159A1 (en) * 1974-11-07 1975-06-27 Tenfjord Mek Verksted Johan Hydraulic actuator for ship's rudder - ring shaped piston has spherical seating surfaces and houses locking rings

Also Published As

Publication number Publication date
EP0181971A1 (en) 1986-05-28
EP0181971B1 (en) 1988-02-03
DE3469206D1 (en) 1988-03-10

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee