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| Number | Title | Issue Date |
| 8181631 | Hydrocarbon storage canister purge system and method A hydrocarbon canister purge system includes a hydrocarbon storage canister, a fuel tank disposed in fluid communication with the hydrocarbon storage canister, an engine disposed in fluid communication with the hydrocarbon storage canister, a hydrocarbon sensor prov... | 05/22/2012 |
| 8156924 | Systems and methods for regulating purge flow rate in an internal combustion engine A system and method of controlling/adjusting purge flow rate in an internal combustion engine is disclosed. The system includes an air intake assembly, a fuel tank assembly and an evaporative emissions control device such as a carbon canister in operational associat... | 04/17/2012 |
| 8104454 | Method for fuel vapor canister purging A method of controlling fuel vapor purging in a hybrid electric vehicle capable of selectively operating an engine is disclosed. In one example, the method includes initiating purging in response to an amount of liquid fuel residing in a fuel tank of the hybrid elec... | 01/31/2012 |
| 8074627 | Automotive fuel system leak testing Systems and methods for performing leak testing on fuel system components in hybrid vehicles during engine-off operating conditions are disclosed. For example, a fuel tank may include a pressure accumulator which may be filled with fuel via a fuel pump in order to g... | 12/13/2011 |
| 8033271 | Diagnostic device and diagnostic method for fuel vapor treatment system of vehicle A diagnostic device for a fuel vapor treatment system having: a canister that captures fuel vapor generated in a fuel tank; a purge passage for purging fuel vapor from the canister to an intake passage of an internal combustion engine; a purge valve provided in the ... | 10/11/2011 |
| 8006674 | Vapor control system A valve is disposed between a fuel tank and an engine intake manifold in a small engine fuel system equipped to recapture running loss evaporative emissions. The valve includes a resilient diaphragm that blocks the flow path When vapor pressure in the fuel tank reac... | 08/30/2011 |
| 7992548 | Crankcase vapor management system An engine assembly includes a vapor canister in selective fluid communication with a crankcase to store alcohol vapor when the temperature inside the crankcase causes alcohol accumulated in the crankcase to boil. The vapor canister is in selective fluid communicatio... | 08/09/2011 |
| 7950375 | Noise minimization for evaporative canister ventilation valve cleaning A control system comprising a detection module that detects at least one of a vehicle speed and an engine speed and a canister vent valve control module that selectively modulates the canister vent valve based on at least one of the vehicle speed and the engine spee... | 05/31/2011 |
| 7942134 | Evaporative emission system and method for controlling same A method for controlling an automotive canister purge valve in fluid communication with an evaporative canister includes selecting a purge flow rate of increase for the purge valve based on a hydrocarbon concentration in a fluid stream exiting the evaporative canist... | 05/17/2011 |
| 7918214 | System and method for improving fuel vapor purging for an engine having a compressor A system and method for storing and purging fuel vapors for an internal combustion engine comprising a compressor is presented. The system allows the canister to be purged even while the engine is operated at high engine load. ... | 04/05/2011 |
| 7918213 | Control method for an internal combustion engine In a control method for an internal combustion engine (1) which has a fuel tank (18), a fuel vapor storage device (25) for storing the escaping fuel vapors and a controllable valve (28) for adjusting the stream of fuel vapors fed to the i... | 04/05/2011 |
| 7909024 | Hydrocarbon fuel vapour filter system A hydrocarbon vapour filter system for capturing vapour released from a fuel tank. The system contains a vapour line in vapour-tight communication with the fuel tank, having a vapour capture segment for capturing fuel vapour, and in the preferred embodiment a purgin... | 03/22/2011 |
| 7905218 | Intake manifold with integrated canister circuit for a supercharged internal combustion engine An intake manifold with integrated canister circuit for a supercharged internal combustion engine. The intake manifold includes a tubular body in which a plenum is defined. A sorting chamber is in a wall of the tubular body. A canister solenoid valve is arranged in ... | 03/15/2011 |
| 7878182 | Engine evaporative emissions control system An evaporative emissions system may include a first passage selectively providing fluid communication between a fuel vapor region of a vehicle fuel reservoir and an engine air intake system, a second passage in fluid communication with the fuel vapor region and ambi... | 02/01/2011 |
| 7845337 | Fuel vapor recirculation device for vehicle A fuel vapor recirculation device may includes: a canister that is connected with a fuel tank through a vapor line and a purge line configured with a pressure control solenoid valve; a vapor control valve that is disposed on the vapor line and selectively connects t... | 12/07/2010 |
| 7823569 | Method and device for controlling an internal combustion engine According to a method for controlling an internal combustion engine by which the tank ventilation operation and an adjustment of the basic mixture can be carried out simultaneously, the engine is operated with an open tank ventilation valve. A first fuel amount corr... | 11/02/2010 |
| RE41823 | Leak check for fuel vapor purge system A leak check system executes a leak check processing. In the leak check processing, the system closes a canister valve and a purge valve to close the fuel vapor purge system. Then, the system detects and monitors a pressure in the fuel vapor purge system. During the... | 10/19/2010 |
| 7775195 | Method for fuel vapor canister purging A method of controlling fuel vapor purging in a hybrid electric vehicle capable of selectively operating an engine includes initiating purging in response to an amount of liquid fuel residing in a fuel tank of the hybrid electric vehicle and a duration since the pre... | 08/17/2010 |
| 7765991 | Fuel delivery control for internal combustion engine A method of controlling an internal combustion engine having a fuel vapor purging system and a fuel delivery system including a fuel pump and a fuel pressure sensor for detecting the fuel pressure provided by the fuel pump is disclosed. In one example, the method in... | 08/03/2010 |
| 7762241 | Evaporative emission management for vehicles Evaporative emissions management for a vehicle having a fuel tank and a low-vacuum internal combustion engine, including hybrid electric vehicles, include first and second canisters with the second canister disposed between the first canister and atmosphere. A refue... | 07/27/2010 |
| 7762126 | Leakage diagnosis apparatus and method for diagnosing purge apparatus for internal combustion engine A leakage diagnosis apparatus is applied to a purge apparatus of an internal combustion engine. The purge apparatus includes a canister accommodating an adsorbent for temporarily absorbing fuel vapor produced in a fuel tank. The fuel vapor is desorbed from the adsor... | 07/27/2010 |
| 7753035 | Method for diagnosing the operation of a purge device of an engine This involves diagnosing the operation of a fuel vapor purge device on an internal combustion engine. The pressure value and/or mass flow rate admitted to the air inlet manifold is determined upstream of the manifold where it communicates with the vapor recirculatio... | 07/13/2010 |
| 7743752 | System and method for improving fuel vapor purging for an engine having a compressor A system and method for storing and purging fuel vapors for an internal combustion engine comprising a compressor is presented. The system allows the canister to be purged even while the engine is operated at high engine load. ... | 06/29/2010 |
| 7717095 | Evaporative emissions purge control A fuel vapor control module for a vehicle comprises a refill diagnostic module, a refill volume calculation module, a canister loading module, and a purge adjustment module. The refill diagnostic module diagnoses a refueling event when an engine is started. The refu... | 05/18/2010 |
| 7690364 | Method for determining the injection correction when checking the tightness of a tank ventilation system A tank ventilating valve is disposed in a regeneration pipe which connects a storage container collecting fuel gas of a fuel tank to an intake pipe of the internal combustion engine. The tank ventilation system is air tightly sealed towards the atmosphere prevailing... | 04/06/2010 |
| 7673619 | Gas vapor control system and method thereof A gas vapor control system may include a canister for capturing gas vapor that is generated from a fuel, a throttle valve that is disposed substantially in the middle of an intake passage through which air flows into a cylinder of the engine, a gas passage that comm... | 03/09/2010 |
| 7640920 | Fuel vapor processing apparatus The present invention includes a first canister disposed within an intake air passage. The first canister communicates with a fuel tank via a second canister, so that a fuel vapor produced within the fuel tank can be purged by the second canister and further by the ... | 01/05/2010 |
| 7610906 | Fuel vapor treatment system A fuel vapor treatment system which has adsorbent, a purge passage for introducing a mixture gas of air and the fuel vapor desorbed from the adsorbent into the internal combustion engine, a detection passage which communicates to the purge passage, and a pump which ... | 11/03/2009 |
| 7607420 | Fuel-evaporated gas processing system and electromagnetic valve device A fuel-evaporated gas processing system includes an input port taking in evaporated gas evaporated in a fuel tank; output ports supplying the evaporated gas taken in through the input port to an intake system of an engine; a chamber interposed between the input port... | 10/27/2009 |
| 7603990 | Fuel vapor treatment system An ECU computes a transit time from a time when the fuel vapor passes the purge valve right after the purge valve is opened until a time when the fuel vapor reaches a vicinity of the fuel injector. Further more, the ECU computes a fuel vapor concentration at the vic... | 10/20/2009 |
| 7591252 | Gas vapor control system A gas vapor control system that controls gas vapor that is generated in a fuel tank may include a canister in which the gas vapor is captured, a throttle valve that is mounted in an intake passage through which air passes, a gas vapor passage connecting the fuel tan... | 09/22/2009 |
| 7578286 | Procedure for the functional diagnosis of an activateable fuel tank ventilation valve of a fuel tank system of an internal combustion engine In a procedure for the functional diagnosis of an activateable fuel tank ventilation valve of the fuel tank system of an internal combustion engine, especially of a motor vehicle, whereby in specifiable time intervals when the fuel tank ventilation valve is activate... | 08/25/2009 |
| 7506639 | Diagnostic control device for a hybrid vehicle A diagnostic control device for a hybrid vehicle is provided for shortening the time required for a failure diagnosis of an evaporation purge system. After introducing the inlet-pipe's negative pressure into the evaporation purge system 51, the evaporation co... | 03/24/2009 |
| 7500474 | Leak detecting apparatus and fuel vapor treatment apparatus A leak detecting apparatus includes a canister adsorbing a fuel vapor evaporated in a fuel tank, a measure passage, a pump connected with the canister through the measure passage, and a pressure senor detecting a pressure in the measure passage. The pump depressuriz... | 03/10/2009 |
| 7497209 | Fuel vapor treatment system for internal combustion engine A fuel vapor treatment system is disclosed for a vehicle engine having a leak check device. When a leak is not detected by the leak check device and when a leak is detected but it is determined by a reliability determining device that fuel status determined by a sec... | 03/03/2009 |
| 7493895 | System for the metered feeding of volatile fuel components A system for the metered feeding of volatile fuel components, in particular into the intake manifold of an internal combustion engine of a motor vehicle, includes an electromagnetic canister-purge valve which is actuatable in proportional pulse-width modulation, and... | 02/24/2009 |
| 7484501 | Fuel vapor treatment apparatus A fuel vapor treatment apparatus includes a first canister purges fuel vapor into an intake passage of an engine through a purge passage, which communicates with a first detection passage having a throttle. A second canister is located on an opposite side of the pur... | 02/03/2009 |
| 7469685 | Control apparatus for internal combustion engine The control apparatus for the internal combustion engine increases a fuel injection amount under predetermined conditions, such as after the start of the internal combustion engine, at cold time, at acceleration requiring time, at gear shifting time from a neutral t... | 12/30/2008 |
| 7469686 | Leak detecting apparatus and fuel vapor treatment apparatus A leak detecting apparatus includes a canister adsorbing a fuel vapor evaporated in a fuel tank, a measure passage, a pump connected with the canister through the measure passage, and a pressure senor detecting a pressure in the measure passage. The pump depressuriz... | 12/30/2008 |
| 7469687 | Method and device for operating an internal combustion engine To operate an internal combustion engine subvolumes of the fluid flowing into an intake duct in each instance during a predetermined time period are determined for each period. Tank purging values of a characteristic quantity are determined for each period. The char... | 12/30/2008 |
