摘要:
A fuel cell system having a fuel cell, a gas compressor arranged to compress process air and connected to the fuel cell via an air-supply line to supply the compressed process air, a recovery unit connected to the fuel cell via an exhaust gas line, a liquid-gas separating unit arranged in the exhaust gas line to separate produced water from an exhaust gas and to store the separated produced water in a water storing vessel portion thereof, and a water-supply line extending from the bottom of the water storing vessel portion to a water-supply port provided for the gas compressor to supply the gas compressor with the produced water under the pressure of the exhaust gas applied to the produced water stored in the water storing vessel.
摘要:
A fuel cell system includes a fuel cell, a motor, a scroll type compressor, connected to the air feeding pipe of the fuel cell and a scroll type regenerator connected to the air exhaust pipe of the fuel cell. The movable scrolls of the compressor and the regenerator are coupled to opposite ends of the motor output shaft in symmetry with each other. A pressure ratio of the regenerator is selected to be smaller than that of the compressor by an amount corresponding to a pressure loss of the exhaust gas across the fuel cell, so that the rotation of the regenerator never transmits a negative torque to the motor output shaft MC. Therefore, the regenerator can efficiently provide power assistance to the compressor.
摘要:
This invention relates to a fuel cell apparatus in which a discharge gas having a pressure energy even after an oxygen has been consumed at the fuel cell is expanded at an expander to collect the pressure energy in the discharge gas as a mechanical energy for assisting driving of a compressor. A clutch (20) is disposed between the electric motor (16) and the expander (15) for connecting/interrupting the expander with/from the electric motor, and a control means (21, 22) for controlling the clutch is provided. The control means detects a pressure in the gas discharge tube (13) between the fuel cell (10) and the expander (15), to interrupt the clutch as long as a detected pressure is lower than a predetermined value, and to connect the clutch when the detected pressure becomes higher than the predetermined value.
摘要:
A fuel cell system includes a fuel cell, a motor, a scroll type compressor connected to the air feeding pipe of the fuel cell and a scroll type regenerator connected to the air exhaust pipe of the fuel cell. The compressor and the regenerator share a movable scroll which is operatively coupled to the motor output shaft. The movable scroll has a common base plate, a first scrolling wall arranged on one side of the common base plate to engage with a scrolling wall of a stationary scroll of the compressor, and a second scrolling wall arranged on the other side of the common base plate to engage with a scrolling wall of a stationary scroll of the regenerator. This arrangement simplifies the structure and facilitates power assistance to the compressor.
摘要:
A heat sink (1) for power module is capable of mounting a power device (101) on at least a surface of the heat sink. The heat sink includes a refrigerant passage (1d) in which cooling medium that dissipates heat generated by the power device (101) flows and a corrugated fin body (1a) arranged in the refrigerant passage (1d). The corrugated fin body (1a) has crests (21b) and troughs (21c) that extend in the flow direction of the cooling medium, and side walls (21a) each of which connects the corresponding one of the crests (21b) with the adjacent one of the troughs (21c). Each adjacent pair of the side walls (21a) and the corresponding one of the crests (21b) or the corresponding one of the troughs (21c) arranged between the adjacent side walls (21a) form a fin (21). Each of the side walls (21a) has a louver (31) that operates to, at least, rotate the cooling medium flowing in the associated fin (21). The heat sink (1) thus has a further improved heat dissipating performance.
摘要:
A hydrogen storage apparatus that includes multiple gas storage tanks that each house a storing/adsorbing material and through the interior of which a fluid travels is provided. The gas storage apparatus 10 includes roughly cylindrical gas storage tanks 20 that house hydrogen-storing alloy. The multiple gas storage tanks 20 are disposed longitudinally parallel to each other in an ordered fashion such that roughly triangular prism-shaped empty spaces are formed between multiple adjacent hydrogen storage tanks 20. Coolant paths through which coolant flows are formed in these roughly triangular prism-shaped empty spaces. These coolant paths are thermally connected to the hydrogen-storing alloy in the gas storage tanks 20 via constituent members of the gas storage tanks 20 and via heat transfer plates 28 disposed on the gas storage tanks 20.
摘要:
A tank main body accommodates a heat exchanger including a heating medium pipe. A plurality of heat exchanger fins are coupled to the heating medium pipe to divide the interior of the tank main body into a plurality of spaces. A hydrogen storage alloy is provided in the spaces. An absorption portion is provided in the spaces. The absorption portion is deformed by a force generated by expansion of the hydrogen storage alloy, thereby absorbing the force. Therefore, the heat exchanger is prevented from being deformed or damaged even if the bulk density of the hydrogen storage alloy is reduced due to expansion and pulverization of the hydrogen storage alloy.
摘要:
A semiconductor apparatus includes a semiconductor device, a cooler of a forced cooling type, and a heat mass. Heat generated in the semiconductor device is conducted to the cooler. The heat mass comes into junction with the semiconductor device with solder so as to be thermally combined with the semiconductor device. The heat mass functions also as an electrode.
摘要:
A tank main body accommodates a heat exchanger including a heating medium pipe. A plurality of heat exchanger fins are coupled to the heating medium pipe to divide the interior of the tank main body into a plurality of spaces. A hydrogen storage alloy is provided in the spaces. An absorption portion is provided in the spaces. The absorption portion is deformed by a force generated by expansion of the hydrogen storage alloy, thereby absorbing the force. Therefore, the heat exchanger is prevented from being deformed or damaged even if the bulk density of the hydrogen storage alloy is reduced due to expansion and pulverization of the hydrogen storage alloy.
摘要:
A pressure tank includes a liner separated into a cap and a main body. A shell covers the outer surface of the liner. The shell is formed of a fiber reinforced plastic. A heat exchanger is arranged in the liner. A header is connected to the heat exchanger. The heat exchanger is supported on the liner by fastening the header to the cap or the main body.