IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0719729
(1985-04-04)
|
우선권정보 |
GB-0031521 (1984-12-13) |
발명자
/ 주소 |
- Szloboda David T. (10640 Skagit Drive Richmond
- British Columbia CAX V7E 2A2)
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
1 |
초록
▼
Vacuum operated apparatus for controlling the ignition timing of an engine, which apparatus comprises valve means and first, second, third and fourth conduit means, the valve means comprising a first chamber, first and second ports in the first chamber, first obturator means for opening and closing
Vacuum operated apparatus for controlling the ignition timing of an engine, which apparatus comprises valve means and first, second, third and fourth conduit means, the valve means comprising 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, the first conduit means being for connecting the first port to an engine inlet manifold, the third conduit means being for connecting the third port to an engine carburetor, and the second and fourth conduit means being for connecting the second and fourth ports respectively to an engine distributor, 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 carburetor 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 and fourth conduit means to the engine distributor so that the engine distributor always receives the optimum vacuum force for causing the optimum adjustment of the engine distributor.
대표청구항
▼
Vacuum operated apparatus for controlling the ignition timing of an engine, which apparatus comprises valve means and first, second, third and fourth conduit means, the valve means comprising a first chamber, first and second ports in the first chamber, first obturator means for opening and closing
Vacuum operated apparatus for controlling the ignition timing of an engine, which apparatus comprises valve means and first, second, third and fourth conduit means, the valve means comprising 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, the first conduit means being for connecting the first port to an engine inlet manifold, the third conduit means being for connecting the third port to an engine carburettor, and the second and fourth conduit means being for connecting the second and fourth ports respectively to an engine distributor, 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 second vacuum forces via the second and fourth ports and the second and fourth conduit means to the engine distributor so that when the engine is started or idling, the first vacuum force passes from the engine inlet manifold along the first conduit means and the first port into the first chamber, thereby opening the first obturator means, the first vacuum force then passes along the second port, the second conduit means and the fourth conduit means, closing the second obturator means to close the fourth port causing the first vacuum force to accumulate and, according to its variable intensity, to cause the engine distributor to operate to advance the spark of the engine; as the engine is accelerated, the second vacuum force increases in the carburettor, any slight increase in this second vacuum force will be felt along the third conduit means and the third port which will cause the second obturator means to open due to the increased vacuum in the second chamber, the second vacuum force then passes via the fourth port, the fourth conduit means, the second conduit means and the second port, closing the first obturator means causing the first obturator means to close the second port thus the distributor will then be receiving vacuum forces from the carbutettor instead of the manifold, therefore the engine distributor always receives the optimum vacuum force for causing the optimum adjustment of the engine distributor to give the optimum engine ignition timing during engine operating conditions.
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