Modified internal combustion engine and method for utilizing low and medium BTU gaseous fuels
AssigneeTechnology Application Services Corporation
InventorSalvador L. Camacho
Life of this patent
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Abstract
A modified internal combustion engine of the carburetor type and method of modification enables low and medium BTU fuels in gaseous form to be utilized either as the sole fuel or in conjunction with other relatively high BTU fuels in liquid or gaseous form.
Claims8
The method of converting a conventional carburetor-type internal combustion engine normally operated on a gravity or pump fed non-pressurized liquid gasoline supply so as to adapt the engine for operation on a pressurized supply of gaseous fuel of BTU content within the range of 100 to 800 BTU's per cubic foot, comprising the steps of:
- (a) reducing the air orifice size of the carburetor to a size appropriate to said BTU content;
- (b) increasing the fuel admission orifice size of said carburetor to a size appropriate to said BTU content;
- (c) retarding the timing of said engine to a retarded timing appropriate to said BTU content;
- (d) installing means for controlling the pressure at which said gaseous fuel is admitted through the said enlarged fuel orifices to said engine;
- and
- (e) connecting a supply of said pressurized gaseous fuel to said modified carburetor through said pressure control means.
A power system, comprising:
- (a) a pressurized supply of gaseous fuel of BTU content within the range of 100 to 800 BTU's per cubic foot;
- (b) an internal combustion engine of the type normally operated from and normally timed for operating from a non-pressurized liquid gasoline supply and including:
- (i) a carburetor of the type normally operated from a non-pressurized liquid gasoline supply and having the size of the air orifices thereof reduced and the size of the fuel admission orifice thereof increased to sizes appropriate to said BTU content;
- and
- (ii) timing means for timing said engine and having a retarded timing appropriate to said BTU content;
- and
- (c) means for connecting said supply to said carburetor and controlling the pressure at which said fuel is admitted to said carburetor through said increased size fuel orifice.
Dependencies are inferred from the claim text.