Patent · US Expired

Internal combustion engine

US3961607A · kind A · utility

37Cited by
3References
12Claims
0Family size

Inventor

Key dates

Filing dateMay 12, 1972
Grant dateJun 8, 1976
Priority date
Expiry dateMay 12, 1992

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/12
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An internal combustion engine construction to improve thermodynamic efficiency by providing, in addition to the standard cylinders and pistons, a supplemental cylinder connected to each combustion chamber of each cylinder and, a piston in each supplemental cylinder associated to move in conjunction with the standard pistons, the relationship of the association being such that the volume of the combustion chamber can be enlarged or ensmalled either by a manual control or an automatic control regulable in response to engine conditions and to modify the volume time relationship.

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