Static timing method for heavy duty diesel engines

Details Static timing method for heavy duty diesel engines Static timing method for heavy duty diesel engines

1997-02-21

1998-12-08

Lo, Weilun

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

2988801, 292815, B23P 1300

Patent

active

058453970

ABSTRACT:
A method and apparatus for providing an improved static timing between a crankshaft and a camshaft in an internal combustion engine. The crankshaft and camshaft are locked into predetermined rotational positions to set the desired timing between the crankshaft and camshaft. The camshaft is locked into its predetermined rotational position using a camshaft timing member positioned between a flat portion formed on an outer peripheral surface of camshaft and an adjacent portion of said engine, such as the cylinder head. This positioning of the camshaft timing member prevents the camshaft from rotating and locks the camshaft into the desired predetermined rotational position for setting the static timing with respect to the crankshaft. The crankshaft in locked into its predetermined position using a crankshaft timing pin inserted through the engine block and positioned into a slot formed in a counterweight on the crankshaft. The slot in the counterweight is shaped so as to fittingly receive the crankshaft timing pin. The crankshaft timing pin prevents the crankshaft from rotating and locks the crankshaft into the desired predetermined rotational position for setting the static timing with respect to the camshaft. Once the crankshaft and camshaft are locked into their desired predetermined positions, the static timing between the crankshaft and camshaft is precisely achieved and the engine is timed correctly.

REFERENCES:
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patent: 2011571 (1935-08-01), Duncan
patent: 3262435 (1966-07-01), Cribbs
patent: 3388614 (1968-06-01), De Coye De Castelet
patent: 4177773 (1979-12-01), Cribbs
patent: 4570334 (1986-02-01), Melzer et al.
patent: 4996768 (1991-03-01), Seyller
patent: 5099563 (1992-03-01), Strusch
patent: 5425168 (1995-06-01), Bumbaco et al.

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