Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7367330 | Internal combustion engine controller The internal combustion engine controller includes an oxygen concentration sensor outputting an electric signal having a value depending on an oxygen concentration in an exhaust gas flowing through an exhaust passage of an internal combustion engine, and a control u... | 05/06/2008 |
| 7293406 | Engine control for low emission vehicle starting A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value ... | 11/13/2007 |
| 7264230 | Carburetor and solenoid assemblies and methods of assembling the same An engine carburetor and a solenoid valve assembly therefor and methods of assembling the same. The carburetor has a body with a fuel and air mixing passage communicating with an air bleed passage. A cavity extends into the body for communication with the air bleed ... | 09/04/2007 |
| 7143756 | Control device and control method for internal combustion engine If the amount of fuel added to exhaust gas becomes excessive as a result of an abnormality of an addition agent supply unit (60), the air-fuel ratio of exhaust as decreases. If an exhaust gas air-fuel ratio obtained from a value output from an A/F sensor (... | 12/05/2006 |
| 7047933 | Low emission fuel for use with controlled temperature combustion, direct injection, compression ignition engines A low emission, direct injection, compression ignition, internal combustion engine operates with reduced charge-air oxygen concentration levels to control localized peak combustion temperatures and reduce NOx formation. Low cetane fuel, below 43 cetane, and most pre... | 05/23/2006 |
| 6962047 | Engine intake A/F ratio control system in outboard engine system In an engine intake A/F ratio control system in an outboard engine system, a secondary air passage (P) for supplying secondary air for regulating the A/F ratio of an air-fuel mixture is connected to a carburetor (33) in an intake system of an engine (E), and ... | 11/08/2005 |
| 6923509 | Cargo trailer anti-terrorist and anti-theft system A remotely activated electro mechanical device is mounted in the dual chamber brake system of a vehicle or trailer. The device includes a solenoid valve and a receiver decoder which controls the valve in response to a coded signal ideally available only to law enfor... | 08/02/2005 |
| 6820603 | Control system and control method for internal combustion engine, and engine control unit There is provided a control system for an internal combustion engine, which is capable of meeting a driver's demand of torque, and achieving high combustion efficiency and high emission-reducing performance by a three-way catalyst in lean-burn operation in a compati... | 11/23/2004 |
| 6644266 | Method for operating an internal combustion engine An internal combustion engine (1), especially for a motor vehicle is described, which is provided with a combustion chamber (4) into which fuel can be injected directly by an injection valve (9) and can be ignited by a spark plug (10) in a first operating... | 11/11/2003 |
| 6640539 | Engine control for low emission vehicle starting A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predeterm... | 11/04/2003 |
| 6460330 | Engine intake A/F ratio control system in outboard engine system In an engine intake A/F ratio control system in an outboard engine system, a secondary air passage (P) for supplying secondary air for regulating the A/F ratio of an air-fuel mixture is connected to a carburetor (33) in an intake system of an engine (E), ... | 10/08/2002 |
| 6044643 | Engine control system and method An engine control system comprising: a mass air flow sensor in an air intake path for a vehicle engine and providing a first input signal indicative of mass air flow through the mass air flow sensor; an air pump unit having an inlet coupled between the ma... | 04/04/2000 |
| 5678526 | System and diagnostic method for providing internal combustion engine with oxygen enriched air An internal combustion engine has a system, including diagnostics, for providing oxygen enriched air so as to control emissions of unburned hydrocarbons and carbon monoxide. The system includes the capability of determining whether the oxygen enrichment s... | 10/21/1997 |
| 5218945 | Pro-active control system for a heat engine A pro-active engine control system for a rotary engine having a governor generating a fuel command signal determined to maintain the actual engine speed at a setpoint speed. A fuel logic circuit converts the fuel command signal to a flow rate signal actua... | 06/15/1993 |
| 5054449 | CCAC (cylinder-cone air chamber) carburetor An improved carburetion process providing improved vaporization and a more uniform distribution of the fuel throughout the entire mass of the intake air stream of an internal combustion engine. A cylinder-cone combination air intake valve replaces the con... | 10/08/1991 |
| 5040117 | Automatically adjusting the emissions from an idling engine A device for sensing the emissions from an idling engine and automatically adjusting the engine so as to minimize pollutants in the exhaust. The device measures the composition of gas emitted and the engine speed at idle and compares the measured values t... | 08/13/1991 |
| 4960098 | Method and apparatus for maintaining optimum oxygen level in combustion engines A method and apparatus for maintaining the optimum oxygen level in a power plant, such as, an internal combustion engine comprises a combination of a pollutant sensor associated with the exhaust of the engine to generate electrical signals proportional to... | 10/02/1990 |
| 4841940 | Air-fuel ratio control device of an internal combustion engine An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of openin... | 06/27/1989 |
| 4838229 | Air-fuel ratio control device of an internal combustion engine An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of openin... | 06/13/1989 |
| 4834050 | Air-fuel ratio control device of an internal combustion engine An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of openin... | 05/30/1989 |
| 4766868 | Method and apparatus for controlling air-fuel ratio in internal combustion engine In an internal combustion engine having a carburetor fuel system wherein an amount of air bleeding is mixed with the fuel by a feedback control for adjusting an air-fuel ratio, the amount of air bleeding is regulated within a range defined by a minimum gu... | 08/30/1988 |
| 4686951 | Method and apparatus for carburetion A fuel system includes a carburetor wherein the throttle valves for the air and fuel are located upstream of the mixing chamber and are moved conjointly to maintain the desired air/fuel ratio over a variation in engine speed. The desired changes in air/fu... | 08/18/1987 |
| 4593663 | Control apparatus for an internal combustion engine having a carburetor An apparatus for controlling the operation of an internal combustion engine having a carburetor which, controls the air-fuel ratio of the air-fuel mixture supplied to the engine in the steady operating condition of the engine on the basis of predetermined... | 06/10/1986 |
| 4519367 | Carburetor A carburetor of the type having a first main air passage with a venturi and throttle valve located therein is provided with second and third auxilliary air passages each of which are connected to the first main air passage upstream of the venturi. A secon... | 05/28/1985 |
| 4492199 | Air-fuel ratio compensating apparatus for internal combustion engine An air-fuel ratio compensating apparatus for the carburetor of an internal combustion engine has first and second valves having equal control (input) current-opening characteristics and provided in main and slow system air bleed paths respectively to cont... | 01/08/1985 |
| 4446834 | System for feedback control of air-fuel ratio in internal combustion engine A system for feedback control of the air-fuel ratio in a carburetor for an automotive internal combustion engine. The control system includes an auxiliary air bleed passage in the main air bleed of a fuel passage, an electromagnetic valve to periodically ... | 05/08/1984 |
| 4436070 | Apparatus for controlling the proportion of air and fuel in an air-fuel mixture of the internal combustion engine An apparatus for controlling the proportion of air and fuel in the air-fuel mixture of the internal combustion engine includes a carburetor having a main system fuel tube, a main system air-bleeding passage, a slow system fuel tube and a slow system air-b... | 03/13/1984 |
| 4434763 | Apparatus and system for controlling the air-fuel ratio supplied to a combustion engine A carbureting type fuel metering apparatus has a primary and secondary induction passage into which fuel is fed by several fuel metering systems among which are primary and secondary main fuel metering systems and an idle fuel metering system, as generall... | 03/06/1984 |
| 4426976 | Engine air/fuel ratio control system injecting bleed air into both fuel systems of double barreled carburetor An engine includes a double barreled carburetor. A sensor mounted to the exhaust system detects the concentration of a component in the exhaust. A control unit, based on a signal from the sensor, dispatches a control signal to an air bleed control valve t... | 01/24/1984 |
| 4407244 | Apparatus for controlling the proportion of air and fuel in the air-fuel mixture of the internal combustion engine An apparatus for controlling the proportion of air and fuel in the air-fuel mixture of the internal combustion engine includes a carburetor having a main system fuel tube, a main system air-bleeding passage, a slow system fuel tube and a slow system air-b... | 10/04/1983 |
| 4385491 | Engine mixture control system controlling primary and secondary air-fuel mixtures An internal combustion engine includes an intake system, an exhaust system, and a mixture supply device which supplies primary fuel-air mixture into the intake system. An oxygen sensor assembly detects oxygen concentration at a certain point in the exhaus... | 05/31/1983 |
| 4383512 | Air-fuel ratio control device of an internal combustion engine An air-fuel ratio control device of an internal combustion engine having a carburetor. An air bleed passage is connected to a fuel outflow passage of the carburetor, and an electromagnetic control valve is arranged in the air bleed passage. The control va... | 05/17/1983 |
| 4380985 | Flow rate control system for fluid being supplied to an internal combustion engine, having initial position setting function for flow rate control valve actuator A system for control of the flow rate of a fluid being supplied to an internal combustion engine. The system includes a flow rate control valve for controlling the flow rate of a fluid being supplied to the engine, a pulse motor for driving the flow rate ... | 04/26/1983 |
| 4376369 | Device for controlling primary and secondary air/fuel ratios for internal combustion engine An internal combustion engine has an exhaust manifold, an inlet manifold, and a carburetor which has a fuel jet. An oxygen sensor is mounted within the exhaust manifold, and produces an output signal according to the oxygen present within the exhaust gase... | 03/15/1983 |
| 4376430 | Air-fuel mixture ratio control device An air-fuel ratio control device for controlling the air-fuel ratio of a mixture to be supplied into an internal combustion engine. The device has a control circuit adapted to produce, in accordance with the offset of the output of an oxygen sensor in the... | 03/15/1983 |
| 4370960 | Engine speed control system An idle control system for an automobile internal combustion engine includes an idle control unit for controlling the operation of an electromagnetically operated actuator. While the engine has a combustible mixture intake passage leading to the engine an... | 02/01/1983 |
| 4367713 | Air/fuel ratio control system for internal combustion engines, having air/fuel control function at engine deceleration An air/fuel ratio control system for feedback control of the air/fuel ratio of a mixture being supplied to an internal combustion engine is provided which comprises an absolute pressure sensor for detecting the absolute pressure in the intake pipe of the ... | 01/11/1983 |
| 4364357 | Air-fuel ratio control system An air-fuel ratio control system for an internal combustion engine including an automobile carburetor having a fuel passage for forming a combustible air-fuel mixture by mixing fuel fed through the fuel passage with air drawn from the atmosphere, comprise... | 12/21/1982 |
| 4347821 | Air/fuel ratio control system for internal combustion engine having rotary valve and step motor A system for feedback control of the air/fuel mixing ratio in an internal combustion engine equipped with a carburetor. The control system has an air/fuel ratio detector of a gas sensor type which provides a feedback signal to a control circuit and a rota... | 09/07/1982 |
| 4345560 | Electronically controlled carburetor An electronically controlled carburetor comprises a main control system provided for correcting the air to fuel ratio in comparison with the target value thereof and an additional control system provided for correcting the controllable range of the air to... | 08/24/1982 |
