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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 6148809 | Oxygen sensor controlled continuous flow fuel system A continuous flow fuel system includes an oxygen sensor for analyzing the exhaust gases of an engine. The output from the oxygen sensor, representing the oxygen content in the exhaust gases, is transmitted to an electronic control module, which in turn co... | 11/21/2000 |
| 4993391 | Fuel supply control system for internal combustion engine In a fuel supply control system for an internal combustion engine, a voltage value to be applied to a fuel pump is controlled depending on a monitored alcohol concentration contained in a fuel to allow the fuel pump to supply a controlled amount of the fu... | 02/19/1991 |
| 4677958 | Fuel delivery to internal combustion engines Liquid fuel from a controlled supply is delivered to a delivery tube under a pressure which is too low to deliver a charge of fuel under static conditions. During an induction stroke however, air entering a cylinder of an engine is drawn through a venturi... | 07/07/1987 |
| 4677954 | Method and system incorporating zero-correction for fuel supply control for internal combustion engine An engine fuel supply system has a main conduit which supplies fuel into an intake passage, a means for regulating fuel flow through this main conduit through a range of values according to the value of a control signal with the fuel flow provided when th... | 07/07/1987 |
| 4617898 | Fuel delivery to internal combustion engines Fuel for a working cylinder chamber (8) of an internal combustion engine is drawn through an atomizing nozzle (39) from an accumulator (30). Fuel is supplied by a low pressure source (12) through a variable constriction (16) linked to the throttle (4) and... | 10/21/1986 |
| 4510913 | Vaporizing fuel system for internal combustion engine A system to supply vaporized fuel to an internal combustion engine resulting in reduced exhaust emissions and better fuel economy due to the air and fuel mixture being more homogenous and more evenly distributed to the cylinders of the engine. A vaporizin... | 04/16/1985 |
| 4508077 | Fuel pump control apparatus The output of a fuel pump of an internal combustion engine is controlled by the duty cycle of its power supply circuit, which is in turn controlled in accordance with engine and fuel conditions. Sensor signals indicative of the engine and fuel conditions ... | 04/02/1985 |
| 4491113 | Current regulator for an electromagnetic consumer for use with internal combustion engine control A current regulator is proposed for use in an electronically controlled, continuously operating gasoline injection system, with the aid of which a control element can be supplied with different current values depending upon the operating states of the eng... | 01/01/1985 |
| 4457281 | Fuel injection device for a multicylinder engine An electronic fuel supply device for an automotive engine has a vortex flow sensor for sensing the flow of suction air into the engine, an electromagnetic valve which driven for a predetermined time in synchronism with the frequency output from the vortex... | 07/03/1984 |
| 4418672 | Fuel supply system A fuel supply system for mixture-compressing internal combustion engine with externally-supplied ignition is proposed, which serves to form the most optimal possible fuel-air mixture. The fuel supply system includes a primary mixture formation unit dispos... | 12/06/1983 |
| 4417558 | Fuel feeding apparatus for internal combustion engine A fuel feeding apparatus for an internal combustion engine, in which a thermal type flow sensor is disposed in a bypass air path supplying bypass air from a point upstream of a Venturi portion formed in a main air-intake path to the Venturi portion, and t... | 11/29/1983 |
| 4408582 | Electronic engine control An electronic controller for an internal combustion engine provides a ratio control signal corresponding to a respective air/fuel ratio, and responds to an air flow signal, a fuel flow signal and the ratio control signal to control fuel flow as to make th... | 10/11/1983 |
| 4284053 | Electronic engine control An electronic controller for an internal combustion engine provides a ratio control signal corresponding to a respective air/fuel ratio, and responds to an air flow signal, a fuel flow signal and the ratio control signal to control fuel flow as to make th... | 08/18/1981 |
| 4257376 | Single injector, single point fuel injection system A flow regulating device for use in a single-point control electronic fuel injection system. The flow regulating device receives a discrete, pressurized fuel pulse or charge from a fuel injector and extends its time duration over the charge cycle period t... | 03/24/1981 |
| 4132195 | Method and apparatus for fuel mixture control The fuel mixture ratio of an internal combustion engine is adjusted by metering out a fuel quantity in relation to the air flow rate through the induction tube. The air flow rate is measured indirectly by monitoring the engine speed (rpm) with an electric... | 01/02/1979 |
| 4050878 | Electronic carburetion system for low exhaust emissions of internal combustion engines An electronic fuel injection system for maintaining absolute control over the air to fuel ratio flowing to the combustion chambers of an internal combustion engine. The system includes means for measuring the air flow rate to the engine. The flow rate mea... | 09/27/1977 |
| 4048964 | Fuel metering apparatus and method A closed loop, electronically controlled and regulated fuel metering system for operating an internal combustion engine in accordance with a predetermined mass fuel-air ratio scheduled in the controller for different engine operating conditions. Linear ai... | 09/20/1977 |
| 4043300 | Apparatus for balancing the flow of two agents, capable of reacting together to provide energy, to an energy generator A device for metering the flow of two fluids, such as the flow of liquid fluid and air to an internal combustion engine, includes a respective duct for each of the two fluids, an ionic flow meter in each of the two ducts, a valve controlling the flow of o... | 08/23/1977 |
| 3981288 | Apparatus for reducing the toxic components in the exhaust gas of internal combustion engines A fuel supply and metering valve assembly used for injection of fuel to an internal combustion engine includes a control pressure circuit which determines the restoring force on the movable member of the fuel metering valve. The magnitude of the control p... | 09/21/1976 |
| 3951113 | Fuel injection system The airflow rate through the induction tube of an internal combustion engine is measured by a first transducer which delivers a set point signal to a control amplifier. The amplifier also receives a feedback signal from a second transducer which monitors ... | 04/20/1976 |
| 3949713 | Electronic fuel injection system for internal combustion engines An electronic fuel injection system for an internal combustion engine wherein the amount of fuel injected is metered according to variations in the injection pressure. Mechanical injectors having a preset opening pressure are fed from a distribution chamb... | 04/13/1976 |
| 3935851 | Fuel metering system for spark ignition engines A fuel metering system controlling the mass fuel-air ratio in a spark ignition engine in response to fuel and air volume measurements. Linear responsive transducers respond to various temperatures, pressures, throttle positioning, fuel flow, air flow and ... | 02/03/1976 |
| 3933135 | Electronic controlled manifold injection system This invention concerns an electronic controlled manifold injection system for internal combustion engines which provides a completely symmetrical flow of the air/fuel mixture to both ends of the engine, vaporizes the fuel by the application of heat to pr... | 01/20/1976 |
| 3931802 | Fuel injection system for internal combustion engines A fuel injection system for regulating fuel flow so as to maintain a desired fuel-air mixture in a mixture compressing, externally ignited internal combustion engine includes the air intake suction tube of the internal combustion engine. A measuring devic... | 01/13/1976 |
| 3930481 | Fuel injection system for internal combustion engines A fuel injection system for an internal combustion engine in which the intake air flow is measured and a corresponding electrical signal is generated which governs a pressure control unit so as to modify the fluid pressure acting on a fuel-metering slide-... | 01/06/1976 |
