Valve, especially for compressors

Details Valve, especially for compressors Valve, especially for compressors

1990-09-24

1991-10-01

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

1375121, 13751615, 13751625, 251212, F16K 1508

Patent

active

050524348

ABSTRACT:
The valve, which is intended especially for compressors, comprises a valve seat (1) with passage channels (2), a catcher (3), and at least one sealing element (5), which is arranged in the intermediate space between the valve seat (1) and the catcher (3). The passage channels (2) of the valve seat (1) are controlled by sealing rings (10), which project into their assigned passage channel (2) with one part of their profile when the valve is closed. The sealing surfaces (13), against which the sealing rings (10) abut when the valve is closed, extend at oblique angles to the direction of the lifting movement of the sealing rings (10). To ensure that the valve is sealed even when the sealing rings (10) in their dimensions do not fit accurately with respect to the valve seat (1) and to its sealing surfaces (13), e.g., owing to manufacturing tolerances or different thermal expansions, each sealing ring (10) is subdivided into at least two subrings (11, 12 ), which are tightly joined together and can be moved head-on in the lifting direction.

REFERENCES:
patent: 767118 (1904-08-01), Popham et al.
patent: 919036 (1909-04-01), Langer
patent: 2255404 (1941-09-01), White et al.
patent: 2956582 (1960-10-01), Pranter
patent: 3378029 (1968-04-01), Lee
patent: 3831627 (1974-08-01), Hanlon
patent: 3898999 (1975-08-01), Haller
patent: 4483363 (1984-11-01), Madoche et al.

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