| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel supply unit which releases a pressure within the unit by opening a relief valve from the outside in a simple configuration.SOLUTION: The supply unit comprises: an introduction passage; at least one injector; a lead-out passage; and a medium pressure relief valve 26 and a low pressure relief valve 28 which release the pressure in at least one of the introduction passage and the lead-out passage by exhausting a fuel gas within the passage to the outside of the passage if the pressure exceeds a predetermined value. The relief valve 26 (28) includes a valve element 260, a casing 262 in which the valve element 260 is accommodated in a slidable manner, and a spring 261 which energizes the valve element 260 in a valve closing direction within the casing 262. In the valve element 260, a jig mounting part is formed to which a valve opening jig 270 for forcibly opening the relief valve 26 (28) from the outside is mounted and in the jig mounting part, a female screw 263 is provided which is threaded to a male screw 273 that is formed in the valve opening jig 270.SELECTED DRAWING: Figure 4 |
