Device for monitoring pressure or temperature in a compressor

Details Device for monitoring pressure or temperature in a compressor Device for monitoring pressure or temperature in a compressor

1994-07-01

1997-06-17

Freay, Charles G.

Pumps

With condition responsive pumped fluid control

Expansible chamber pump distributor operation modified

417306, 417307, 137855, 251326, 251901, F04B 4900

Patent

active

056392249

ABSTRACT:
The inventive device produces compressed gas. It is provided with a compressor, wherein the compressor has a compression chamber (25), a suction chamber (10) and a pressure chamber (6). The compression chamber (25) can be connected to the suction chamber (10) via a suction valve (12, 21, 54) and to the pressure chamber (6) via a pressure valve (3). When the receiving-end pressure reaches a predetermined level, the pressure chamber (6) is connected to a compressed-air supply container (44). This connection is via a device for the discontinuation of compressing action (23, 51). In addition, the pressure in the pressure chamber (6) is monitored by a control valve (26), which is a sensing device with a control output (38). The sensing device (26) is designed to produce a control signal at the control output (38), when the pressure in the pressure chamber (6) or compression chamber (25) of the compressor reaches or exceeds a predetermined value. The control output (38) of the sensing device (26) is connected to a control input (15, 52) of a cut-off device for the discontinuation of the compressing action (23) or a switchable coupling (51). The control signal at the control output (38) of the sensing device (26) actuates the cut-off devices (23, 51), thereby discontinuing the compressing action.

REFERENCES:
patent: 2155236 (1939-04-01), Newell
patent: 4432698 (1984-02-01), Shirakuma et al.
patent: 4459085 (1984-07-01), Tonegawa
patent: 5017099 (1991-05-01), Tan

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