Gas internal combustion engine gas leak checking device and method for same
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United States of America Patent
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Nov 14, 2017
Issued Date -
N/A
app pub date -
Feb 19, 2014
filing date -
Mar 29, 2013
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Abstract
An object of the present invention is to provide a gas leakage checking device and a method for the same, for checking fuel-gas leakage of safety shutoff valves simply and securely by measuring a pressure in a fuel supply pipe. The gas-leakage checking device 8 includes a first safety shutoff valve 81 disposed in a fuel-gas supply pipe 89 of the gas internal combustion engine 1 for permitting or shutting off a flow of the fuel gas, a second safety shutoff valve 82 disposed on a downstream side of the first safety shutoff valve 81, a gas-leakage checking pipe 89c branched from between the first and second safety shutoff valves 81, 82, a gas-discharge valve 83 disposed in the gas-leakage checking pipe 89c and configured to discharge the fuel gas between the first and second safety shutoff valves 81, 82, a first pressure meter P1 for detecting a pressure of the fuel gas in the gas-leakage checking pipe 89c, and second pressure meters P2, P3 disposed on a downstream side of the second safety shutoff valve 82, for detecting the pressure of the fuel gas in the fuel-gas supply pipe 89.
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