Structure for connecting spark plug and ignition coil for intern

Details Structure for connecting spark plug and ignition coil for intern Structure for connecting spark plug and ignition coil for intern

1995-11-13

1997-04-08

Pirlot, David L.

Electrical connectors

Having spark or glow plug cover

439126, 439127, 439128, 123169PA, 123143C, 123647, F02P 1700

Patent

active

056181930

ABSTRACT:
A terminal portion (11) of a spark plug (10) and a connecting terminal (22) of an ignition coil (20) are connected through a coil spring (30) serving as a conductive member which in turn is covered with an insulating member (40) having a cap (41), a sleeve (47) and a bushing (48) and extending from the terminal portion (11) to a high-tension tower (21). A first air vent hole (44) is defined by an upper surface of a collar portion (42) of the cap (41) and a bottom surface of an ignition coil body (23) in intimate contact with the upper surface, and a plurality of reservoir spaces (45) having a greater volume than the first air vent hole (44) are formed in circumferentially spaced apart relation along the first air vent hole (44). A second air vent hole (46) is formed in the cap (41) for communication between the first air vent hole (44) and the interior of a plug hole (H). This provides a structure for connecting the spark plug and the ignition coil which prevents water from entering the plug hole through the air vent holes when a cylinder head is subjected to high-pressure water.

REFERENCES:
patent: 1979999 (1934-11-01), Rabezzana
patent: 2686509 (1954-08-01), Drinkard
patent: 4562813 (1986-01-01), Okado et al.
patent: 4989575 (1991-02-01), Kanno
patent: 5170767 (1992-12-01), Wada et al.
patent: 5215475 (1993-06-01), Stevens
patent: 5377640 (1995-01-01), Kobayashi
patent: 5462023 (1995-10-01), Furuya
patent: 5487676 (1996-01-01), Maruyama et al.

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