| 摘要 |
PROBLEM TO BE SOLVED: To provide a compressor having both a feed system and a discharge system, and a duck bill valve suitable for the compressor when it is used as a one-way valve. SOLUTION: The compressor 1 comprises a cylinder 2, a piston 3, a first one-way valve which is provided on the cylinder 2 and opened when the fluid is introduced into the cylinder from a feed origin side by driving the piston 3, a second one-way valve which is provided on the cylinder 2 and opened when the fluid in the cylinder 2 to a feed destination side by driving the piston 3, a first opening means to forcibly open the first one-way valve, and a second opening means to forcibly open the second one-way valve. The fluid of the feed origin is fed to the feed destination by driving the piston 3, and when the piston 3 is stopped, the first and second one-way valves are opened/closed at the predetermined timing by the first and second opening means, and the fluid of the feed destination is discharged to the feed origin. COPYRIGHT: (C)2005,JPO&NCIPI |
