| 摘要 |
1,139,113. Valves. R. T. CERAME and J. C. SIMEONE. 23 March, 1967 [13 May, 1966], No. 13650/67. Heading F2V. [Also in Divisions F1 and H1] A solenoid-operated valve 83 closes the fuel supply pipe 70 of an I.C. engine when the keyoperated ignition switch is in the "off" position. The rotary barrel ignition switch 11 carries arms 58, 60, rotating with the barrel. In the "off" position arm 58 closes contacts 44, 47 in an alarm circuit containing a lamp 112, buzzer 114 and solenoid 95 actuating a latch 96 for the valve 83. A second switch 48 in the alarm circuit is only closed when the key 30 is in position. When key 30 is turned to the "start" position, switch 44, 47 is broken and arm 60 connects supply terminal 40 to terminal 42 for the starter motor 116 and to terminal 118 in the circuit of solenoid 82. Valve 83 is thereby lifted to open the fuel supply pipe, the spring-loaded catch 96 slipping beneath lever 90 attached to valve 83 to hold the valve in its raised position when the solenoid 82 is de-energized by a cam 104 breaking-switch 102. When the key is released it returns from the "start" position to the "on" position in which arm 60 disengages from terminal 42 to de-energize the starter 116 but still connects terminal 40 to terminal 118. When the key is rotated to the "off" position arm 58 re-energizes the alarm circuit and energizes solenoid 95 to withdraw catch 96, allowing valve 83 to return to its fuel shut-off position. The alarm circuit remains operative until withdrawal of the key 30 allows switch 48 to open. |
