Sonex Research, Inc.

Manfred Weber

Andrew A Pouring

Brad R Bopp

Michael Keller

A method for improving combustion in a main combustion chamber of an internal combustion engine and a resulting engine are disclosed. The engine includes a main combustion chamber arranged between a head and a reciprocating piston. A heat retaining element is provided between the head and the main combustion chamber. The heat retaining element is configured to reduce heat transfer from the main combustion chamber into the engine head. A precombustion chamber is provided having a reaction chamber. The reaction chamber is configured to be provided with a secondary charge of air/fuel and a first spark igniter.

Method for modifying combustion chamber in a reciprocating piston internal combustion engine and resulting engine

A method for improving combustion in a combustion chamber of an internal combustion engine, a heat retaining element, and an internal combustion engine are provided. The internal combustion engine includes a main combustion chamber arranged between a head and a reciprocating piston, and a heat retaining element provided between the head and the main combustion chamber. The heat retaining element is a self-supporting structure coupled to the head that is configured to reduce heat transfer from the main combustion chamber into the engine head. The heat retaining element includes a head-facing portion substantially corresponding in shape to a portion of the head facing the main combustion chamber. The heat retaining element is provided such that a gap is provided between the head-facing portion of the heat retaining element and the portion of the head facing the main combustion chamber.

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Greensboro, MD, United States of America

Manfred Weber