Automatic chambered flap valve for controlling gas passage, part

Details Automatic chambered flap valve for controlling gas passage, part Automatic chambered flap valve for controlling gas passage, part

1988-11-01

1990-04-10

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

1375121, F16K 1516

Patent

active

049151282

ABSTRACT:
This automatic valve for controlling gas passage through ducts, particularly through feed ducts of two-stroke internal combustion engines, is provided with a chamber (4) arranged to determine the opening and closure of slot-shaped flow ports (2A', 2B') by pressure difference; this takes place by the movement away from and towards contact surfaces of only edges which are perpendicular to the direction of flow, using dihedron-shaped flaps of which those edges parallel to the flow graze end walls provided parallel to them to prevent transverse flow seepage. The prevention of such transverse flow seepage is favored by inserting the dihedron-shaped flaps into containing seats which support the sides at said edges parallel to the flow, and which also limit transverse deformation by the pressure on the inside of the dihedron which determines valve closure.

REFERENCES:
patent: 247857 (1881-10-01), Thompson
patent: 1306391 (1919-06-01), Romanoff
patent: 2408056 (1946-09-01), Farmer
patent: 2496834 (1950-02-01), Ward
patent: 2505757 (1950-05-01), Dunbar et al.
patent: 2590976 (1952-04-01), Kalitinsky
patent: 2674091 (1954-04-01), Malick
patent: 2729939 (1956-01-01), Campbell
patent: 2781777 (1957-02-01), Oxnam
patent: 3059625 (1962-10-01), Torre
patent: 3981276 (1976-09-01), Ernest
patent: 4180042 (1979-12-01), Lloyd

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