| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vane type internal combustion engine improving the airtightness of vanes, having a simple structure with less friction and free from maintenance without using lubricating oil. <P>SOLUTION: In the airtight structure 100 of the vane type internal combustion engine, the engine 1 includes a housing 3 and a rotor 5 rotating at a position eccentric to the central position of the inner peripheral surface 31a of a housing body 31. In the rotor 5, pressure gas distribution passages 54 are arranged in communication with each other for letting combustion gas G flow in, which is generated by an explosion process. Inflow ports 55 for the pressure gas distribution passages 54 in which the combustion gas G flows are each formed between vane grooves 51 in the outer peripheral surface 52 of the rotor 5. A check valve structure 8 is arranged in the inflow port 55. The pressure gas distribution passage 54 communicates with the vane groove 51 and the vane 7 is pressed against the inner peripheral surface 31a of the housing body 31 by the combustion gas G. <P>COPYRIGHT: (C)2012,JPO&INPIT |
