System for reducing the number of cylinders used in a multi-cyli

Details System for reducing the number of cylinders used in a multi-cyli System for reducing the number of cylinders used in a multi-cyli

1976-06-30

1978-06-27

Myhre, Charles J.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123DIG1, 123DIG7, 123 1R, F02D 1306

Patent

active

040968456

ABSTRACT:
An apparatus and method are disclosed for converting a standard multi-cylinder internal combustion engine having a "split" intake manifold and "N" number of cylinders into a N/2 engine (as in converting a V-8 to V-4) to increase engine efficency and conserve fuel. One half of the split intake manifold is blocked off to prevent the fuel/air mixture from reaching one half of the engines' cylinders thereby preventing combustion within those cylinders. Horsepower losses due to compression of air within the deactivated cylinders are avoided by opening the intake valve passages and closing the exhaust valve passages. This forms a closed chamber between the deactivated cylinders and the intake manifold and allows the air to be pushed out of a cylinder during its normal compression stroke, through the intake manifold passages and into cylinders undergoing expansion strokes. The intake and exhaust valves may be retained in their respective positions by adjustment of the normal valve adjusting mechanism, or by providing devices which disconnect the valve train from the camshaft.

REFERENCES:
patent: 1275752 (1918-08-01), Roberts
patent: 1283780 (1918-11-01), Huid
patent: 1331787 (1920-02-01), Schlatter
patent: 1350989 (1920-08-01), Cox
patent: 1717768 (1929-06-01), Fornaca
patent: 2098115 (1937-11-01), Voorhies
patent: 2394738 (1946-02-01), Anthony
patent: 2948274 (1960-08-01), Wood
patent: 2955750 (1960-10-01), Phelp
patent: 3874358 (1975-04-01), Crower
patent: 3945367 (1976-03-01), Turner, Jr.

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