Fuel use rate meter for engines
First Claim
1. A fluid fuel system in combination with an engine comprising a fuel tank, a fuel line extending from said tank to the engine, said engine being of the type in which a portion of the fuel fed thereto is unburned, a return line from said engine leading back to said fuel tank, a positive seal, positive displacement meter connected into the fuel line for measuring fuel fed to the engine, said meter having a driven output operative continuously as long as fuel is flowing through the meter, a positive seal, positive displacement meter connected into said return line and also having a driven output operative continuously as long as fuel is flowing through the latter meter, indicating means calibrated to show fluid flow, proportioning means receiving the outputs from said two meters, said proportioning means having an output comprising the differential in output of said two meters, and means connecting the output of said proportioning means to said indicating means whereby the latter indicates a continuous and direct reading of the fuel being consumed by said engine.
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Abstract
A meter capable of accurately measuring volume or weight of fuel consumed by an engine per unit time. The meter includes a piston driven in reciprocating movement by fluid being pumped therethrough by the engine fuel pump. The reciprocating motion is converted to rotative motion by a barrel cam the output of which drives a tachometer-like instrument calibrated to show volume or weight of fuel used per unit of time. A lever operated bypass valve is associated with the meter to bypass the latter if desired. The meter is adjustable to compensate for expansion or contraction of the fluid or for different types of fuel. It is also within the concept of the invention to combine the rate meter hereof with other recording mechanism for making a permanent record of fuel usage. Furthermore, the meter may be combined with other treating means such as temperature control means and bubble removing means.
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Citations
29 Claims
- 1. A fluid fuel system in combination with an engine comprising a fuel tank, a fuel line extending from said tank to the engine, said engine being of the type in which a portion of the fuel fed thereto is unburned, a return line from said engine leading back to said fuel tank, a positive seal, positive displacement meter connected into the fuel line for measuring fuel fed to the engine, said meter having a driven output operative continuously as long as fuel is flowing through the meter, a positive seal, positive displacement meter connected into said return line and also having a driven output operative continuously as long as fuel is flowing through the latter meter, indicating means calibrated to show fluid flow, proportioning means receiving the outputs from said two meters, said proportioning means having an output comprising the differential in output of said two meters, and means connecting the output of said proportioning means to said indicating means whereby the latter indicates a continuous and direct reading of the fuel being consumed by said engine.
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11. A fluid fuel system arranged for use with an engine having fuel feed means, a positive seal, positive displacement fluid flow meter operated by the engine fuel feed means, indicating means driven by said meter comprising a direct reading of the rate of fuel being consumed by the engine, and temperature control means arranged for use with the fuel system to control the temperature of fuel therein.
- 12. A fluid fuel system in combination with an engine, fuel feed means for said engine, said engine being of the type in which a portion of the fuel thereto is unburned, a return line from said engine leading back to said fuel feed means to return the unburned fuel, a positive seal, positive displacement fluid flow meter operated by said engine fuel feed means, and indicating means driven by said meter comprising a direct reading of the rate of fuel being consumed by said engine.
- 21. A fluid flow system in combination with an engine, fuel feed means for said engine, said engine being of the type in which a portion of the fuel fed thereto is unburned, a return line from said engine leading back to said fuel feed means to return the unburned fuel, a treatment tank in said return line, a fluid flow meter operated by said fuel feed means, and indicating means driven by said meter comprising a direct reading of the rate of fuel being consumed by said engine.
Specification