Cylinder-piston combination, particularly for high-pressure appl

Details Cylinder-piston combination, particularly for high-pressure appl Cylinder-piston combination, particularly for high-pressure appl

1985-05-28

1987-08-11

Hershkovitz, Abraham

Expansible chamber devices

Passage in cylinder for application of separate fluid to...

92105, 92153, F01B 1904

Patent

active

046853820

ABSTRACT:
A deformable sealing member, particularly a sealing tube, which is at least partially elastic is secured at two distant locations to two working members, e.g. to a piston part and a cylinder part, respectively, to form a leakproof working chamber for pressurizing therein a working fluid or for transferring the power of a pressurized working fluid introduced in the working chamber to said working members, the apparatus thus being able to operate as a pump or motor, respectively. The sealing member is supported against the working pressure in said chamber by a support surface, and between said sealing member and said support surface there is a low-friction component which is constituted by a solid material, e.g. a sliding layer, secured to the sealing member or to the support surface, or by a fluid lubricant introduced in a flow passage formed between the sealing member and the support surface, in the latter case there being a continuous or intermittent stream of lubricant through this lubricant flow passage at least during high-pressure strokes of the working chamber to a low-pressure side. The pressure in the lubricant flow passage is balanced against the pressure of the working fluid by throttle means formed by the gap between the deformed sealing member, when under pressure of the working fluid, and the support surface and automatically adjusted or regulated by the lubricant volume or pressure in said passage on one side and by the working pressure in said chamber on the other side, so that substantial pressure balance between both surfaces of the sealing member wall will arise supporting the sealing member with distance from the support surface, i.e. substantially without friction and wear, and without excessive deformation. If solid low friction layers or surfaces are used, then "Teflon" or similar materials may be disposed on the sealing member and/or the support surface.

REFERENCES:
patent: 2027979 (1936-01-01), Hopkins
patent: 2076732 (1937-04-01), Kuehne
patent: 2191861 (1940-02-01), Rymal
patent: 2888879 (1959-06-01), Gaarder
patent: 3125004 (1964-03-01), White
patent: 3212447 (1965-10-01), Browne
patent: 3839946 (1974-10-01), Paget
patent: 3902404 (1975-09-01), Breit
patent: 4329914 (1982-05-01), Frey
patent: 4527464 (1985-07-01), Frey

Affiliated with

Also associated with

Rating

Cylinder-piston combination, particularly for high-pressure appl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cylinder-piston combination, particularly for high-pressure appl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylinder-piston combination, particularly for high-pressure appl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-396738