Device for detecting leakage of precharged gas from gas-type acc

Details Device for detecting leakage of precharged gas from gas-type acc Device for detecting leakage of precharged gas from gas-type acc

1988-05-16

1989-09-26

Levy, Stewart J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

73 39, B60T 1718, B60Q 100

Patent

active

048703907

ABSTRACT:
A gas leakage detecting device for detecting leakage of a precharged gas from a gas-type accumulator which is connected to a hydraulic pump and which stores a pressurized hydraulic fluid delivered from the pump. The pump is turned on to initiate accumulation of the pressurized fluid in the accumulator when a pressure of the pressurized fluid falls below a lower limit, and turned off when the pressure rises to an upper limit. The detecting device detects an occurrence of leakage of the precharged gas from the accumulator, where a time duration between moments of activation and de-activation of the pump is less than a predetermined reference value.

REFERENCES:
patent: 3662333 (1972-05-01), Howard et al.
patent: 3997887 (1976-12-01), Poynter

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