| 摘要 |
<p>A pressure change-over valve disposed in a liquid passage for operating pressure-receiving pistons in order to permit mutual operations between the pressure-receiving pistons of a combustion promotion apparatus of an internal combustion engine. A rotary disc (4) or a rotary shaft (1) rotating with the revolution of the engine is provided with pressure change-over portions (12) and (15) (or 9 and 10 in Fig. 9), and pressure change-over holes (5), (6), (7) and (8) communicating with the operation portion of the rpessure-receiving piston (5A) of the combustion promotion apparatus are provided in the outer portion (2) and (3) of the rotary disc (or the rotary shaft). The liquid which is discharged when one of the pressure-receiving pistons (5A) performs a main operation (B) is sent to another pressure-receiving piston through the pressure change-over valve and the pressure-receiving piston is operated reversely (A). <IMAGE></p> |
