Rotary actuator device having an annular piston rod

Details Rotary actuator device having an annular piston rod Rotary actuator device having an annular piston rod

1991-12-18

1993-08-17

Look, Edward K.

Expansible chamber devices

Oscillating working member or cylinder therefor

92123, 92125, 92187, 92188, 92240, 92241, 92246, F01C 900

Patent

active

052359000

ABSTRACT:
A rotary actuator device having an annular piston rod, the device comprising at least one piston held provided with sealing means and co-operating with an annular piston rod mounted so as to be capable of moving in an annular chamber, together with means for selectively applying a fluid under pressure in said annular chamber, wherein the piston head co-operates with the piston rod via a hinge having one degree of freedom in rotation and one degree of freedom in translation, said hinge comprising a piece in the form of a knife whose edge co-operates with a V-groove in a female portion of triangular profile, the knife edge and the V-groove being parallel to the axis of rotation of the piston rod. This disposition enables the forces exerted on the sealing means to be brought back into balance, thereby increasing sealing even under high pressures.

REFERENCES:
patent: 312495 (1885-02-01), Nash
patent: 1616310 (1927-02-01), Esnault-Pelterie
patent: 3173344 (1965-03-01), Mongitore
patent: 3295419 (1967-01-01), Vielmo et al.
patent: 3731597 (1973-05-01), Payne
patent: 4724743 (1988-02-01), Eickmann

Affiliated with

Also associated with

Rating

Rotary actuator device having an annular piston rod does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary actuator device having an annular piston rod, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary actuator device having an annular piston rod will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2236741