Piston
AssigneeVolvo Car Corporation
InventorJean-Pierre Marcil
Life of this patent
Estimating the term…
Abstract
A piston for reciprocal movement in a cylinder in an internal combustion engine is disclosed. The piston has a lateral surface that is provided with at least two spaced peripheral piston ring grooves for individual piston rings. A collection chamber is arranged between the piston ring grooves. This collection chamber is made of a peripheral groove arranged in the lateral surface and at least one space, which communicates with the collection chamber, is arranged in the piston. The collection chamber and the space are made to take up uncombusted air-fuel mixture and combustion gases that have passed one of the piston rings.
Claims9
A piston designed for reciprocating movement in a cylinder in an internal combustion engine, said piston comprising:
- a lateral surface provided with at least two peripherally spaced piston ring grooves for individual piston rings,
- a collection chamber arranged between said piston ring grooves, said collection chamber further comprising a peripheral groove in said lateral surface, and at least one space arranged in the piston for communicating with said collection chamber,
- wherein said collection chamber and said at least one space collect uncombusted air-fuel mixture and combustion gases that have passed one of said piston rings.
Dependencies are inferred from the claim text.