| 摘要 |
PURPOSE:To reduce gas pressure against a compressor and thereby aim at the prolongation of its service life, by installing a check valve in position between a decompression valve of a Stirling engine and a suction valve of the compressor as well as between a discharge valve of the compressor and a tank, respectively, and also installing a bypass valve interposingly between these suction and discharge valves of the compressor. CONSTITUTION:A stirling engine pushes an accelerator lever 11 to the left, making a booster valve 8 open, and feeds high pressure working gas to a working space from a compressor 3 or a tank 9 whereby it aims at an output increase, while it pushes the accelerator lever 11 to the right, making a decompression valve 5 open, and pressure inside the working space is removed whereby it aims at a output decrease, respectively. In this case, each of check valves 23 and 24 are installed interposingly between the decompression valve 5 and a compressor suction valve 21 as well as between a compressor discharge valve 22 and the tank 9. And, the upstream side of the check valve 23 is interconnected to a working chamber 32 of a bypass valve 30 with a pipe line 26, and simultaneously the upstream side of the check valve 24 is interconnected to one side valve chest 33 of the bypass valve 30 with a pipe line 28 while the downstream side of a check valve 22 to the other side valve chest 34 by a pipe line 28', respectively. |
