| 摘要 |
Valve opening from the closed condition due to suction acting on the diaphragm 12 is initially resisted by an electromagnet 18, permanent magnets (25, Fig. 2) or by a valve (33, Fig. 3) which opens a restricted vent (34) to the suction chamber 15. A computer 24 responsive to engine operating conditions controls the electromagnet 18. <IMAGE> |
