Gas feed device
First Claim
1. A gas feed device for feeding gas from a plurality of gas tanks through feed passages communicated with branch passages which are respectively connected to the plurality of gas tanks, comprising:
- stop valves mounted on the respective branch passages;
gas pressure detection means which are fitted to the respective branch passages on the side away from the stop valves and nearer the gas tanks; and
trouble judgement means which judge a trouble of the gas pressure detecting means on the basis of the opening and closing actions of at least two stop valves among the respective stop valves and the gas pressure detected by the gas pressure detecting means fitted together with the stop valves.
1 Assignment
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Accused Products
Abstract
A gas feed device for detecting trouble in a gas pressure sensor fitted to the gas feed device. The presence of trouble in pressure sensors is determined according to whether or not gas pressure values detected by the pressure sensors fitted to branch pipes is within an allowable range when stop valves fitted to the branch pipes connected to the access ports of hydrogen absorbing alloy tanks are fully opened from their fully closed state. When the gas feed device is mounted on a vehicle, no special operation is required for trouble detection because the trouble in the pressure sensors can be detected by fully opening the fully closed stop valves when the vehicle is started and normally the trouble can be judged by the mounted equipment.
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Citations
14 Claims
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1. A gas feed device for feeding gas from a plurality of gas tanks through feed passages communicated with branch passages which are respectively connected to the plurality of gas tanks, comprising:
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stop valves mounted on the respective branch passages;
gas pressure detection means which are fitted to the respective branch passages on the side away from the stop valves and nearer the gas tanks; and
trouble judgement means which judge a trouble of the gas pressure detecting means on the basis of the opening and closing actions of at least two stop valves among the respective stop valves and the gas pressure detected by the gas pressure detecting means fitted together with the stop valves. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A gas feed device for feeding gas from a plurality of gas tanks through feed passages communicated with branch passages which are respectively connected to the plurality of gas tanks, comprising:
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stop valves mounted on the respective branch passages;
gas pressure detectors which are fitted to the respective branch passages on the side away from the stop valves and nearer the gas tanks; and
an electronic control unit configured to judge a trouble of the gas pressure detectors on the basis of the opening and closing actions of at least two stop valves among the respective stop valves and the gas pressure detected by the gas pressure detectors fitted together with the stop valves. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification