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1. 发明专利

GB1043378A Improvements relating to the protection of internal combustion engines on loss of oil pressure 未知
公开(公告)号：GB1043378A
公开(公告)日：1966-09-21
申请号：GB4240664
申请日：1964-10-16
申请人： ALBERT GRAHAM LAWFORD
IPC分类号： F01M1/26
摘要： 1,043,378. Engine stop gear; indicating working conditions; preventing unauthorized use. A. G. LAWFORD. Oct. 16, 1964 [Nov. 15, 1963], No. 42406/64. Headings FIB and F1K. An attachment for an internal-combustion engine comprises an electrical relay contained within a container the relay being electrically connected in the ignition circuit of the engine to the normally provided generator or alternator coil, distributer and oil pressure switch of the engine and being so provided as to prevent normal functioning of the engine in the event of the oil pressure falling below a pressure for safe working of the engine In Fig. 5 the relay 3 when operated by electrical current in the relay circuit due to insufficient oil pressure as indicated by the oil pressure switch OPS causes opening of the contacts in the relay switch 4 to stop the current in the ignition circuit of the engine The relay 3 may also have included in its circuit a connection leading to an audible and/or visible warning means 12 such as a buzzer or bell and/or light. The engine may be permitted to turn over or idle but when pressure is applied to the accelerator pedal (not shown) open circuiting may prevent the engine speed from increasing. It is stated that the relay may be set by operation of a switch to serve as a theft prevention device.

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