Techtronic Outdoor Products Technology Limited

Eastway Fair Company Limited

Homelite Technologies Limited

Pc/rc Products, L.l.c.

Techtronic Industries Company Limited

David R Brower

Nagesh S Mavinahally

Anthony S Thomas

Fabio T Romero

John K Morris

Brian Michael Leinonen

James T Bellistri

Charles Arthur Eakins, Jr

Philip T Scott

Michael W Scrimager

Danny C King

Deng Dian Bo

Bill Yang Ming

Roger Klink

Mazen J Hajji

Phillip T Scott

Brian N Leinonen

Dian Bo Deng

Bill Ming Yang

A low pressure, low cost electronic fuel injection system () for small hand-held two cycle engines () is provided which employs a number of improvements, including by way of example and not of limitation, an improved low cost injector construction (), a throttle body integration () that includes mounting the operational components of the supply system on a single unit, an improved ignition module (), a pressure regulated fuel system controlled by an electronic control unit () employing and an adaptive algorithm based on engine speed which controls the speed by varying the amount of fuel provided to the engine.

Small engine operation components

A stratified two-stroke engine having a laminated counterweight is disclosed. The laminated counterweight includes a traditional counterweight portion and a laminate portion. The laminate portion has an approximately circular peripheral shape and at least one notch. In operation, the notch may be used to time the opening and closing of a mixture port or a transfer port.

Laminated counterweight for timing control

A cylinder crankcase for a four-stroke engine is disclosed. The cylinder crankcase includes a cylinder head, cylinder block, and crankcase which are monolithic. A half-crank crankshaft bears in a crank arm, which is included in the crankcase. The cylinder crankcase includes a belt driven valve train and crank arm that includes a pocket containing a crank gear attached to the crankshaft for driving the belt.

Monolithic block and valve train for a four-stroke engine

A cylinder-crankcase is disclosed that includes a cylinder block having a cylinder head for receiving a spark plug. The cylinder-crankcase also includes a crankcase and a crank arm for supporting a crankshaft. The cylinder block, cylinder head, crankcase and crank arm are a single, monolithic piece.

Monolithic cylinder-crankcase

A muffler with a housing for receiving exhaust gasses from an engine is disclosed. The muffler includes a housing with an inlet and an exit, a baffle plate partitioning the housing into first and second chambers. The baffle plate includes a catalyst receptacle in the first chamber, the second chamber includes the exit of the housing. A catalytic converter element with a longitudinal axis is housed within the catalyst receptacle, the catalytic converter element is positioned within the catalyst receptacle such that exhaust gas passes through the catalytic converter element in a direction transverse to the longitudinal axis of the catalytic converter element and through the second chamber to exit the housing.

Muffler with catalytic converter

Growing community of inventors

Townville, SC, United States of America

David R Brower