Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder detail
Patent
1996-04-15
1997-07-01
McMahon, MarGuerite
Internal-combustion engines
Particular piston and enclosing cylinder construction
Cylinder detail
29888061, 205109, F02F 500
Patent
active
056427000
ABSTRACT:
Sliding contact-making structures of an internal combustion engine, comprising (a) a cylinder unit having an inner plating coating containing a dispersoid substance; and (b) a piston provided with at least one piston ring, fitted into the inside of said cylinder unit in the axial direction so as to freely slide upon the inside surface thereof, wherein the thickness of the plating coating is tapered off in the axial direction at the edge of the plating coating on the side of a crankshaft, and/or the dispersoid content in said plating coating not in sliding contact with the piston ring, on the side of a crankshaft, is lower than that in sliding contact with the piston ring, thereby preventing peeling off of the plating coating and unnecessary abrasion of the piston as well as seizing, extending the life of the cylinder.
REFERENCES:
patent: 3932228 (1976-01-01), Sugiyama et al.
patent: 3981781 (1976-09-01), Mori et al.
patent: 5516417 (1996-05-01), Kondou et al.
patent: 5520791 (1996-05-01), Murase
patent: 5540829 (1996-07-01), Mase et al.
patent: 5549086 (1996-08-01), Ozawa et al.
Ikegaya Hirohiko
Murase Yasuyuki
McMahon Marguerite
Yamaha Hatsudoki Kabushiki Kaisha
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