Fuel saving apparatus for multiple cylinder internal combustion engines
OwnerEarl W. Rand, Jr.inventor
Life of this patent
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Abstract
Fuel saving apparatus for controlling the supply of fuel to one or more selected cylinders of a multi-cylinder internal combustion engine comprises a remotely and independently controlled fuel saving valve operably positioned to provide selective communication between the cylinder clearance volume and a filtered air portion of the engine carburetor. The valve is closed for normal, full power engine operation, and open for predetermined low engine power demand periods. The opening of said valve so severely reduces cylinder intake vacuum and resultant air-fuel influx as to render temporarily ineffective the cylinder, thereby reducing engine fuel consumption.
Claims10
A fuel saving apparatus for multiple cylinder spark ignition internal combustion engines having a carburetor filtered air portion, said apparatus comprising:
- a. an elongated tubular body member including an externally threaded first body portion adapted for sealing engagement within an engine cylinder spark plug aperture;
- b. an apertured second body portion being internally threaded and adapted for sealingly receiving and engaging therein a spark plug;
- c. a third body portion disposed adjacent said second body portion and including an aperture therethrough;
- d. said body member including a central longitudinal aperture interconnecting the first, second and third body portions;
- and
- e. a valve member in said third body portion and adapted to move between an open and a closed condition respectively for opening and closing said third body portion aperture, said valve member having first and second ends;
- said valve member first end being sealingly attached to said third body portion about the aperture therein;
- said valve member second end being adapted for connection with said filtered air portion;
- said valve member, in said open condition causing cylinder intake vacuum to be reduced to the extent that an engine cylinder having connection therewith is rendered temporarily ineffective and engine fuel consumption is thereby reduced.
In a multiple cylinder internal combustion engine including a carburetor and a plurality of cylinders each of which has a piston, said cylinders respectively forming a combustion chamber clearance volume above said respective pistons, and an intake and exhaust valve associated with said respective cylinders, the improvement of a device rendering temporarily ineffective selected engine cylinders during low engine power demand periods for reducing fuel consumption, said device comprising:
- (a) an independently controlled fuel saving third valve member operably associated with at least one of the cylinders [and adapted to selectively] so as to provide communication between said clearance volume and the atmosphere during the low engine demand periods;
- (b) said third valve member, when open, severely reducing cylinder intake vacuum and resultant air-fuel influx to the extent that said one cylinder is rendered temporarily ineffective during the low engine demand periods, thereby reducing engine fuel consumption.
Dependencies are inferred from the claim text.