Class / Patent application number | Description | Number of patent applications / Date published |
123464000 | Temperature responsive | 7 |
20090090332 | Method and System to Mitigate Deposit Formation on a Direct Injector for a Gasoline-Fuelled Internal Combustion Engine - In an internal combustion engine having both a port injector and a direct injector supplying fuel to a cylinder of the engine, a method is disclosed for avoiding deposit formation on and/or inside the tip of the direct injector. The tip temperature is estimated. When the tip temperature exceeds a threshold temperature at which deposits are formed, the amount of fuel delivered by the direct injector is increase. | 04-09-2009 |
20100288235 | ENGINE STARTUP FUEL PRESSURE CONTROL SYSTEMS AND METHODS - A fuel pressure control system for a vehicle comprises a pressure regulator module and a pressure increasing module. The pressure regulator module regulates a fuel pressure supplied to an engine to a first predetermined pressure during an engine running period. The pressure increasing module selectively increases the fuel pressure to a second predetermined pressure during the engine running period when a counter value is one of greater than and less than a predetermined final value. The second predetermined pressure is greater than the first predetermined pressure, and the counter value is set to the predetermined final value after the engine is started for a first time after being assembled. | 11-18-2010 |
20110023833 | FUEL SYSTEM CONTROL - Methods and systems are provided for operating a fuel system in an engine, the fuel system including a supply pump for delivering fuel to the fuel system and pressurizing fuel received from a feed pump, a fuel tank, a fuel filter for filtering fuel, a fuel rail, and a fuel injector. One example method comprises, during an engine cold-start, operating the supply pump, and adjusting a supply pump operation mode between at least a pressure-controlled mode and a volume-controlled mode based on a fuel temperature and pressure. | 02-03-2011 |
20120227707 | FUEL SUPPLY SYSTEM OF INTERNAL COMBUSTION ENGINE - A fuel supply system of an internal combustion engine includes: a pressure adjustment device provided on a fuel flow path that connects a fuel pump and an injector; a return flow path for returning a fuel discharged from the pressure adjustment device to a fuel tank; a fuel property sensor disposed in the return flow path; a fuel pump control portion that actuates the fuel pump at a predetermined programmed timing, when the internal combustion engine is in a stopped state; and a fuel property determination portion that determines a fuel property of the fuel in the fuel tank by using an output value of the fuel property sensor, when the fuel pump is actuated during the stopped state of the internal combustion engine. | 09-13-2012 |
20130340715 | APPROACH FOR CONTROLLING FUEL FLOW WITH ALTERNATIVE FUELS - A fuel pump temperature is regulated by selectively directing liquid fuel to an expansion section to evaporate the liquid fuel and create a drop in temperature to thermally cool the fuel pump. | 12-26-2013 |
20140366845 | METHOD FOR OPERATING A DIRECT FUEL INJECTION SYSTEM - A method, comprising: during engine cylinder operation with fuel from a first injector and not a second injector: increasing a rail pressure of a fuel rail coupled to the second injector in response to a temperature increase of a tip of the second injector. In this way, by raising the rail pressure of a fuel rail coupled to the second injector in response to a temperature increase of a tip of the second injector, the method may be utilized to prevent a vapor space from forming within the tip of the second injector which is exposed to the heat of combustion within the engine cylinder. By preventing a vapor space from forming, the method may be used to prevent fuel distillation in the tip of the second injector during periods where the engine cylinder is operating with fuel from a first injector and not the second injector. | 12-18-2014 |
20160153384 | SYSTEMS AND METHODS FOR SENSING FUEL VAPOR PRESSURE | 06-02-2016 |