Internal-combustion engines – Frame construction – Horizontal cylinder
Reexamination Certificate
2005-08-16
2005-08-16
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Frame construction
Horizontal cylinder
C123S184550, C123S1950HC
Reexamination Certificate
active
06928974
ABSTRACT:
The reinforcement plate for a reciprocating engine greatly reduces relative movement of the main bearings of a reciprocating engine, thereby reducing structural fatigue to increase engine durability and longevity. The reinforcement plate also maintains a more precise alignment between the main bearings to reduce friction during operation. The plate comprises a flat, planar steel sheet having opposite sides which fit within the lower skirt of the engine block. A series of lateral ribs or bars extend across the plate and bolt to all of the main bearing caps of the engine, using the stock cap bolts. Crankshaft counterweight and crank throw clearance openings, as well as other clearance areas, are provided in the plate. The reinforcement plate is adapted particularly well for installation in General Motors LS-1 aluminum block engines, but may be configured for installation in a number of different engines as desired.
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Gimie Mahmoud
Litman Richard C.
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