Ellis H Sprick

43544770, Oct 19, 1982

May 4, 1981

6/260348

Ellis H. Sprick - Eugene OR

F02M 1300

123575

A carburetor having a fuel mixing valve with multiple vanes which control the flows of main and secondary fuels into a valve mixing chamber. The octane rating of the fuel charge may be momentarily increased during periods of engine acceleration to permit the engine to have a higher compression ratio for optimum efficiency with a relatively low octane fuel. The fuel flow controlling vanes may be mounted on a common shaft for simultaneous movement or on separate support means for differential movement in response to an engine control. A fuel mixing valve is also disclosed for use with the second stage components of a two stage carburetor.

44629443, Jul 31, 1984

Dec 27, 1982

6/453614

Ellis H. Sprick - Eugene OR

F02M 2502
F02M 2514

261 18A

A mixing valve receives primary and auxiliary fuel flows within a valve mixing chamber of arcuate shape. Primary and auxiliary valve components are coaxially and rotatably disposed in the valve housing with each including a flow control arm which regulates primary and auxiliary fluid flow through housing defined ports. A three-way valve is operable to interrupt an auxiliary fuel flow in those instances when unmixed primary fuel is required. A valve control assembly is actuated by a diaphragm valve responsive to manifold pressure and includes control rods and linkages for actuating the primary and auxiliary valve components. A solenoid carried by one of the control rods is operable during certain engine conditions to cause differential rod movement to reduce the flow of auxiliary fuel when detonation is unlikely. Provision is made for the optional use of water as an anti-detonate fluid.