Patent · US Expired

Two-cycle internal combustion engine

US4934345A · kind A · utility

9Cited by
7References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 15, 1989
Grant dateJun 19, 1990
Priority date
Expiry dateMay 15, 2009

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF02F2200/06
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A two-cycle internal combustion engine comprising a cylinder including an exhaust outlet and scavenging paths formed in the inner wall thereof, and a piston including openings formed in its peripheral wall at positions near respective piston-pin bosses thereof, the respective upper ends of the scavenging paths serving as scavenging ports which are opened and closed through reciprocating movement of the piston and the openings being so arranged as to communicate with the scavenging paths at positions nearer to the exhaust outlet of the cylinder.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.