F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
F02P 3/02 (2006.01) F02F 1/24 (2006.01) F02P 13/00 (2006.01) H01F 38/12 (2006.01) H01T 13/44 (2006.01)
Patent
CA 2069925
-19- Abstract of the Disclosure Engine Ignition System Including a Transformer Assembly and Positioning Means Therefor Prior engine ignition systems for a multicylinder spark ignited engine have been too complex and have incorporated external wiring cables and a plurality of transformer assemblies that placed the individual primary and secondary coils thereof in an external location for better heat dissipation. Thus the cable and transformer assemblies were subject to damage by personnel working on the engine. These problems have been overcome by the engine ignition system (8) including a transformer assembly (10) having an elongate body (68) including a cup portion (70) containing the coils (82,84), a base portion (72), and a stem portion (74). A conducting core (96) extends through the stem and base portions and a suitable clip (116) connects the core electrically to a spark plug (30) installed in a profiled bore (28) of the cylinder head (24). A position device (130) is provided to positively align and contain the transformer assembly (10) within a valve mechanism compartment (149) defined between the cover (148) and the cylinder head (24), and including a spring member (132) connected to the cup portion (70) and depending guide members (150) formed within the cover (148) that cooperate with each other.
Bruning E. Eugene
Richardson Ronald D.
Caterpillar Inc.
Kirby Eades Gale Baker
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