Velocity boost body with wrap-around pitot tube

Details Velocity boost body with wrap-around pitot tube Velocity boost body with wrap-around pitot tube

1987-05-26

1988-07-05

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

Line flow effect assisted

13750536, 13750546, G05D 1602

Patent

active

047547782

ABSTRACT:
A pressure relief diaphragm type regulator valve includes a velocity boost body having an annular-shaped wrap-around pitot tube communicating with the vena contracta of a flowpath. The pressure at the vena contracta is communicated to the diaphragm by a small registration orifice in the boost body. The boost body defines a large relief orifice open to the annular pitot tube, but normally closed off from the diaphragm by a flapper. Under a rapid excess pressure condition, the flapper uncovers the relief orifice and large volume flow is permitted to the diaphragm.

REFERENCES:
patent: 2011764 (1935-08-01), Hughes
patent: 2318962 (1943-05-01), Parker
patent: 2826213 (1958-03-01), Wright
patent: 2827069 (1958-03-01), Peterson
patent: 3545465 (1970-12-01), Zadoo
patent: 3575203 (1971-04-01), Johnson

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