Outboard Marine Corporation

Robert L Niemchick

Gerald Haft

Gregory J Binversie

Paul W Breckenfeld

James E Macier

Wolfram Hellmich

Theodore J Holtermann

Peter W Brown

John M Daniels

Francis A McGinnity

George T Gillespie

John M Mahoney

Harold K Wade

Erik R Jorgensen

Gregory M Umek

Two-stroke engine piston bowl configurations

Disclosed herein is an internal combustion engine including first and second adjacent oppositely acting crankcases defined, in part, by a wall intermediate the first and second crankcases, a passageway through the wall and including a central portion and end portions which extends in opposite directions from the central portion, which are outwardly divergent, and which communicate with the first and second crankcases, whereby the central portion acts as a venturi consequent to air passage through the passageway between the crankcases incident to the pressure differential between the crankcases, and a conduit communicating with the central portion of the passageway for alternately supplying lubricating oil to the crankcases.

Internal combustion engine with lubricating oil supply system

Disclosed herein is a cylinder head assembly comprising a cylinder head including a planar surface adapted for engagement with a cylinder block and having therein a combustion chamber recess, a coolant jacket located adjacent to the combustion chamber, and a coolant passage extending in the cylinder head remotely to the recess, a pressure responsive valve communicating with said coolant jacket and with a source of coolant and operative to supply coolant to the coolant jacket when the coolant is above a predetermined pressure, and a temperature response valve communicating with the coolant passage and with a supply of coolant and operative to supply coolant to the coolant passage when the coolant is above a predetermined temperature.

Dry head cooling system

An improved bracket and idler assembly for an internal combustion engine in which the bracket forms a portion of an air compressor for use with the engine.

Integral bracket and idler assembly

Growing community of inventors

Lake Villa, IL, United States of America

Robert L Niemchick