Invention Grant
- Patent Title: Lubrication system for two cycle engine
- Patent Title (中): 双循环发动机润滑系统
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Application No.: US562159Application Date: 1995-11-22
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Publication No.: US5836280APublication Date: 1998-11-17
- Inventor: Kazuo Miyazawa
- Applicant: Kazuo Miyazawa
- Applicant Address: JPX Iwata
- Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee Address: JPX Iwata
- Priority: JPX6-289772 19941124
- Main IPC: F01M9/02
- IPC: F01M9/02 ; C23C30/00 ; F01M1/08 ; F01M1/16 ; F02B3/06 ; F02B75/02 ; F02F1/00 ; F02F1/20 ; F02F3/00 ; F02F5/00 ; F16N15/00 ; F16N15/02 ; F02F3/10 ; F02F3/12
Abstract:
A feature of the invention resides in a plating arrangement for a piston that reciprocates within a cylinder. The piston includes a generally cylindrical piston body. The piston body includes a piston head with a nickel plating and a piston skirt with a tin plating provided at the circumference of the piston body. At least one piston ring groove with a molybdenum disulfide plating is provided in the piston skirt at an upper portion of the piston body. A piston ring with a chromium and resin layer is disposed in each of the piston ring grooves. The piston body includes a piston pin hole that defines an inner diameter surface of the piston. The inner diameter surface has a molybdenum disulfide plating. The plating arrangement for the piston enhances lubrication of the piston. Additionally, the present invention includes a lubricating system for a two-cycle, crankcase compression, diesel engine, comprising a cylinder block and head assembly, the cylinder block and head assembly includes a plurality of cylinders, a piston disposed in each of said cylinders so as to reciprocate in an axial direction of said cylinders, and the oil includes a polyisobutane additive for further enhancing lubrication of the piston.
Public/Granted literature
- USD329792S Culinary scissors Public/Granted day:1992-09-29
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