Briggs & Stratton, LLC

Glen C Eifert

Patrick J Bruener

Thomas J Green

Joseph R Harkness

William W Doolittle, Iii

Robert B Carlson

Norbert M Vogl

An oil pickup tube includes a substantially straight portion, and a top and bottom portion interconnected with the straight portion. Each portion includes a cavity in fluid flow communication with the cavities of the other portions. Each cavity includes a substantially linear longitudinal axis. The cavities also include draft angles to allow the respective portions to be manufactured by injection molding, casting, or another suitable method. The top portion includes at least one recess adapted to receive a sealing member that creates a press-fit seal when the top portion is inserted into an oil gallery of an engine. Top and bottom flanges interconnected with the oil pickup tube facilitate securing the tube to the engine. A method for manufacturing the oil pickup tube includes the steps of defining the outer surface of the tube with a die, inserting two cores corresponding to the respective cavities of the top, straight, and bottom portions into the die, and delivering molten material into the die. After the material has at least partially cooled and solidified, the oil pickup tube is removed from the die.

Oil pickup tube for internal combustion engine

A mounting apparatus for an assembly including an internal combustion engine and a transmission includes an elongated member having a first portion interconnected with the engine housing of the engine adjacent the cylinders and above the crankcase of the engine. The elongated member also includes a second portion mounted on a bell housing or crankcase cover portion of the engine housing. The elongated member may include an overhang portion extending over an engine fan. The elongated member may be disposed between a first and a second cylinder of the engine. The elongated portion may also include lifting portions defining apertures for facilitating raising and lowering the engine.

Mounting apparatus for an engine and transmission

Internal combustion engine

A balance system for an internal combustion engine or the like includes a counterbalance weight pivotally mounted to the crankcase and driven in a reciprocating manner by a link assembly connecting the weight to an eccentric on the crankshaft. The pivoting weight not only counterbalances the piston acceleration and deceleration forces but also cancels the torsional forces created by the weight as it pivotally moves through an arc in response to piston movement. This is accomplished by locating the center of gravity of the balance weight between the piston bore centerline and the stationary pivot of the balance weight itself. This location for the center of gravity causes a torque to be generated by a force couple created by the piston inertial force vector, the balance weight interial force vector, and the distance between them. This torque counteracts the torque generated by angular acceleration of the balance weight itself, to thereby substantially eliminate all torsional vibrations.

Pivoting balancer system

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Hartford, WI, United States of America

Glen C Eifert