Pneumatic starter device

Motors: expansible chamber type – Fluid supply through diverse paths to single expansible chamber – Second path activated in response to pressure or flow in...

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Details

91 31, 91446, 137110, F15B 1304

Patent

active

044022549

ABSTRACT:
A progressive pneumatic starter device delivers at its outlet an increasing pressure of low flow rate, then a working pressure at a high flow rate. The starter device is provided with a distributor member adapted to connect, in parallel with a calibrated bore, a channel of large section, when a pressure which is greater than a predetermined threshold and which is not derived from the outlet is applied to the distributor member. The starter device is advantageously placed upstream of a pneumatic switch to which it is directly associated for the purpose of shortening its channels for transfer of fluid.

REFERENCES:
patent: 2524114 (1950-10-01), Millat
patent: 3089512 (1963-05-01), Julien
patent: 3572363 (1971-03-01), Roach
patent: 3834621 (1974-09-01), Pacht
patent: 4011883 (1977-03-01), Petrimaux
patent: 4075928 (1978-02-01), Bitonti
patent: 4294113 (1981-10-01), Sprott

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