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| Number | Title | Issue Date |
| 7320220 | EGR valve having integrated motor, controller, and flow meter A valve arrangement for an internal combustion engine is disclosed. The valve arrangement may have a housing at least partially defining a venturi passageway, a first port disposed at an entrance to the venturi passageway, and a second port disposed at a throat of t... | 01/22/2008 |
| 7264224 | Valve with offset venturi A valve is disclosed having a valve closing member that divides the valve bore into passageways of unequal cross sectional areas when in an open position. A venturi is positioned within the valve bore upstream of the valve closing member. The throat of the venturi m... | 09/04/2007 |
| 7111830 | Anti-detonation fuel delivery system A fuel processing device [2] is provided that produces properly sized fuel aerosol particles [5] that when mixed with combustion air, reduces or eliminates detonation (knock) in internal combustion engines thus reducing fuel octane requirements for eng... | 09/26/2006 |
| 7098550 | Method for controlling a wind energy plant The present invention concerns a method of controlling a wind power installation and a wind power installation in particular for carrying out the method. Wind power installations have been generally known for a long time and in recent times are increasingly u... | 08/29/2006 |
| 7093826 | Anti-detonation fuel delivery system A fuel processing device is provided that produces properly sized fuel aerosol particles that when mixed with combustion air, reduces or eliminates detonation (knock) in internal combustion engines thus reducing fuel octane requirements for engines of a given compre... | 08/22/2006 |
| 7090203 | Carburetor for internal combustion engine A carburetor for an internal combustion engine has an intake pipe having a throttle valve plate therein. An annular venturi tube is disposed upstream or downstream of the throttle valve plate inside the intake pipe. The annular venturi tube is located at a predeterm... | 08/15/2006 |
| 6993396 | System for determining the health of process control feedback loops according to performance assessment criteria A method for calculating the health of a process control loop based on multiple key assessments of the loop's performance. The method uses the concepts of baselines and thresholds. The typical calculation of loop health is the average of the Percent Towards Threshol... | 01/31/2006 |
| 6915772 | Automatic priming system An automatic priming system for internal combustion engines, which is operable at engine cranking speeds and which is automatically disabled at engine running speeds. The automatic priming system is driven by pressure fluctuations within the engine crankcase which a... | 07/12/2005 |
| 6910460 | Engine air-fuel ration control method with venturi type fuel supply device and fuel control appliance including the method An object of the present invention is to maintain stable air-fuel ratio on a venturi type fuel supply device, irrespective of the external load such as air-conditioner and electrical load, and to provide stable engine speed on idling state. A venturi type fue... | 06/28/2005 |
| 6786208 | Boost fuel enricher The boost fuel enricher is used with internal combustion engines, either carbureted or fuel-injected, that are equipped with compressors, i.e., turbocharged or supercharged, in order to enrich the air/fuel ratio when the engine is under boost. The boost fuel enriche... | 09/07/2004 |
| 6290215 | Carburetor with pressurized fuel injectors A premixing fuel-air chamber for use with the manifold of a combustion chamber of an engine. The chamber has a hollow interior housing that has an air intake inlet on one side and a fuel-air outlet on the opposite side of the housing. Within the confines ... | 09/18/2001 |
| 5678527 | Induction and charge forming system for gaseous fueled engine An improved, compact multiple barrel charge forming device for operating with gaseous fuels and which employs a single fuel chamber for supplying fuel to both barrels. A number of various manifolding arrangements are disclosed to facilitate application wi... | 10/21/1997 |
| 5626118 | Piston valve type carburetor The position located above the upper surface of fuel in a float chamber is communicated with the position where the sectional area of a suction passage varies or the position in the vicinity of the foregoing position via a negative pressure introduction p... | 05/06/1997 |
| 4709677 | Fuel control system for air-fuel mixture supply devices In order to insure that, even when there arises a change in the rate of air flowing through an intake mixture passageway, the air-fuel ratio of the mixture which is to be supplied to an engine is always kept constant, the fuel control system comprises: an... | 12/01/1987 |
| 4627401 | High-velocity carburetor for an Otto engine A high-velocity carburetor for an Otto engine comprising a slide for changing the cross-section of the suction pipe, a nozzle connection receiving nozzles and a profiled nozzle needle seated on the slide and controlling the cross-section of the nozzle. On... | 12/09/1986 |
| 4579097 | Fuel supply apparatus and method for internal combustion engines A first temperature sensor senses the temperature of intake air supplied to an internal combustion engine before the intake air is mixed with fuel supplied thereto. A second temperature sensor senses the temperature of the mixture of the intake air and fu... | 04/01/1986 |
| 4563990 | Fuel supply control system for engine carburetors A fuel supply control system for a vehicle engine carburetor and particularly a carburetor that includes a variable venturi portion and fixed venturi or nozzle portion. The system includes a fuel valve for supplying additional fuel to the nozzle under low... | 01/14/1986 |
| 4545350 | Fuel controller of variable choke carburetor A fuel controller has a fuel cut-off device in the form of a solenoid valve connected to an intermediate part of an air bleed commmunicating with the well of a variable choke carburetor. The fuel controller also employs a vacuum changeover valve which com... | 10/08/1985 |
| 4532904 | Air-fuel ratio control device for internal combustion engines An air-fuel ratio control device for an internal combustion engine equipped with a plurality of variable venturi type carburetors each having a slow system, in which the flow rate of air supplied to the slow systems of the carburetors is controlled depend... | 08/06/1985 |
| 4517134 | Variable venturi carburetor In a variable venturi carburetor in which the metering jet portion of fuel changes automatically according to the amount of intake air required to keep the mixture at a constant air-to-fuel ratio at all times, two series-arranged nozzles and an auxiliary ... | 05/14/1985 |
| 4506644 | Exhaust gas-purifying device of an internal combustion engine An engine comprising a variable venturi-type carburetor which has a raised wall formed on the inner wall of the intake passage thereof. The suction piston of the carburetor has a tip face having a V-shaped cross-sectional upstream end portion which cooper... | 03/26/1985 |
| 4484557 | Variable venturi carburetor Disclosed herein is a variable venturi carburetor adapted for controlling the air-fuel ratio by air bleeding operation which includes an actuator for controlling the amount of bleed air in response to the engine running conditions and a fuel jet having a ... | 11/27/1984 |
| 4457279 | Air-fuel ratio control device of a variable venturi-type carburetor A variable venturi-type carburetor comprising a main fuel passage which is open to the intake passage of the carburetor. An air bleed passage is connected to the main fuel passage. The inlet of the air bleed passage is divided into a first passage and a s... | 07/03/1984 |
| 4422423 | Jet control type carburetor A jet control type carburetor according to the present invention includes an intake pipe having an intake passage formed in an inner wall thereof, the intake passage allowing an intake air to flow therethrough; a venturi provided in the intake pipe, for c... | 12/27/1983 |
| 4411233 | Carburation devices for internal combustion engines A constant depression carburettor has an auxiliary throttle member associated with a sensor which delivers a signal representative of the position of the auxiliary throttle member. A solenoid valve is actuated by pulses received from a control circuit whi... | 10/25/1983 |
| 4407248 | Electronically controlled carburetor An electronically controlled carburetor for an internal combustion engine for a vehicle has a variable venturi for varying the venturi cross-section and concurrently varying the amount of air metered into the venturi in response to the engine demands an a... | 10/04/1983 |
| 4387685 | Fluidic control system including variable venturi A fluidic control system provided with a variable Venturi structure whose movable element is automatically shifted as a function of the mass-volume of fluids passing through the structure to produce an output which depends on the adjusted position of the ... | 06/14/1983 |
| 4369749 | Variable venturi carburetor Disclosed herein is an improvement in a variable venturi carburetor for an internal combustion engine which comprises a venturi portion, a float chamber, a main fuel passage communicating with the venturi portion and with the float chamber, a main fuel je... | 01/25/1983 |
| 4349877 | Electronically controlled carburetor An electronic controlled carburetor includes sensors for sensing engine speed, intake air pressure and water temperature. An arithmetic unit digitally processes output signals from the sensors and generates signals for controlling the air-fuel ratio of a ... | 09/14/1982 |
| 4341190 | 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... | 07/27/1982 |
| 4314535 | Feedback type variable venturi carburetor A feedback type variable venturi carburetor in which the negative pressure regulated by the variable venturi at a constant level is supplied to a solenoid valve which is opened and closed at a frequency of 5-30 Hz and whose open-close time ratio is contro... | 02/09/1982 |
| 4308835 | Closed-loop fluidic control system for internal combustion engines A closed-loop fluidic control servo system for a vehicle having an internal combustion engine provided with a variable Venturi carburetor having an axially-shiftable spool operated by a vacuum motor. The system acts automatically through the motor to main... | 01/05/1982 |
| 4300490 | Air-fuel mixture ratio correcting system for carburetor There is provided an air-fuel mixture ratio correcting system for a carburetor in which the air-fuel ratio of a mixture fed to an engine is detected whereby to control the amount of auxiliary fuel and/or the amount of auxiliary air to always control the a... | 11/17/1981 |
| 4290399 | Floatless variable venturi type carburetor A floatless variable venturi type carburetor in which the float chamber is substituted by a fuel pressure regulator. The carburetor has, in addition to the ordinary constituents such as variable orifice, fuel metering jet and air bleed, a fuel valve dispo... | 09/22/1981 |
| 4268462 | Variable venturi carburetor A variable venturi carburetor is disclosed which includes a mixture conduit having therein a throttle plate, a fixed venturi, and a vacuum sustaining plate for variably opening and closing the throat of the fixed venturi. A first fuel nozzle opens into th... | 05/19/1981 |
| 4264537 | Variable venturi type carburetor A variable venturi type carburetor of an internal combustion engine which includes a housing, a bore extending through the housing and having an inner wall defining an intake passage, a suction piston movably mounted in the housing and having a head porti... | 04/28/1981 |
| 4250856 | Fuel-air ratio automatic control system using variable venturi structure An automatic control system for supplying a fuel-air mixture to an internal combustion engine through a Venturi structure conducting throttle-controlled incoming air to the intake manifold of the engine. Coaxially disposed in the casing of the structure i... | 02/17/1981 |
| 4249496 | Air-fuel ratio feedback control apparatus of an internal combustion engine An air-fuel ratio feedback control apparatus of an internal combustion engine in which an air-fuel ratio of an air-fuel mixture is at first set on the lean side of the desired air-fuel ratio. Additional fuel is supplied from at least one fuel injection va... | 02/10/1981 |
| 4211196 | Carburetor A fluid jet type of carburetor, namely one in which a jet of fuel passes across the combustion air path and has some of the fuel entrained by the passing combustion air and the rest of the fuel recycled, includes means for concentrating the flow of combus... | 07/08/1980 |
| 4187805 | Fuel-air ratio controlled carburetion system An automatic control system for supplying a fuel-air mixture to an internal combustion engine including a variable-Venturi carburetor. Air is fed into the input of the Venturi, the air passing through the throat thereof whose effective area is adjusted by... | 02/12/1980 |
