| 摘要 |
PROBLEM TO BE SOLVED: To provide a Lysholm compressor for a fuel cell capable of obtaining a high efficiency at a wide range from a low pressure up to a high pressure without using a spool valve and capable of running with high reliability. SOLUTION: In the Lysholm compressor for a fuel cell equipped with a bypass passage 11 bypassing an air in a rotor tooth groove space 7 into an exhaust port 9, an outlet of the bypass passage 13 facing an exhaust port 9 is shaped into a pipe shape projecting to the exhausted port 9 and on the end periphery of the bypass passage outlet 13 of the pipe shape a taper tapering off toward the end is provided. |
