초록 ▼

Vacuum operated apparatus for controlling the ignition timing of an engine, which apparatus comprises valve means and first, second and third conduit means, the valve means comprising a valve body, a first chamber, first and second port in the first chamber, first obturator means for opening and clo

Vacuum operated apparatus for controlling the ignition timing of an engine, which apparatus comprises valve means and first, second and third conduit means, the valve means comprising a valve body, a first chamber, first and second port in the first chamber, first obturator means for opening and closing the second port, a second chamber, third and fourth ports in the second chamber, and second obturator means for opening and closing the fourth port, and passageway means which connects together inside the valve body the second and the third ports, the first conduit means being for connecting the first port to an engine inlet manifold, the third conduit being for connecting the third parts to an engine carburettor, and the second conduit means being for connecting the second and the fourth ports via the passageway means to an engine distributor arrangement, and the apparatus being such that in use the valve means receives first vacuum forces from the inlet manifold via the first conduit means and second vacuum forces from the carburettor via the third conduit means, the valve means being operative to transmit the greater of the first and the second vacuum forces via the second and the fourth ports, and the second conduit means to the engine distributor arrangement so that the engine distributor arrangement always receives the optimum vacuum force for causing the optimum adjustment of the engine distributor arrangement to give the optimum engine ignition timing during engine operating conditions.

대표청구항 ▼

Vacuum operated apparatus for controlling the ignition timing of an engine, which apparatus comprises valve means and first, second and third conduit means, the valve means comprising a valve body, a first chamber, first and second ports in the first chamber, first obturator means for opening and cl

Vacuum operated apparatus for controlling the ignition timing of an engine, which apparatus comprises valve means and first, second and third conduit means, the valve means comprising a valve body, a first chamber, first and second ports in the first chamber, first obturator means for opening and closing the second port, a second chamber, third and fourth ports in the second chamber, and second obturator means for opening and closing the fourth port, and passageway means which connects together inside the valve body the second and the third ports, the first conduit means being for connecting the first port to an engine inlet manifold, the third conduit being for connecting the third port to an engine carburettor, and the second conduit means being for connecting the second and the fourth ports via the passageway means to an engine distributor arrangement, and the apparatus being such that in use the valve means receives first vacuum forces from the inlet manifold via the first conduit means and second vacuum forces from the carburettor via the third conduit means, the value means being operative to transmit the greater of the first and the second vacuum forces via the second and the fourth ports and the second conduit means to the engine distributor arrangement so that the engine distributor arrangement always receives the optimum vacuum force for causing the optimum adjustment of the engine distributor arrangement to give the optimum engine ingnition timing during engine operating conditions.