子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Control device for internal combustion engine | US14409610 | 2013-06-05 | US09903305B2 | 2018-02-27 | Osamu Mukaihara; Masahiro Toyohara |
| A control device for an internal combustion engine is provided which can stabilize behavior when a fuel injection valve is opened, and reduce a variation in the amount of fuel injection of the fuel injection valve. A control device (200) for an internal combustion engine includes high voltage difference detection means (404) for obtaining a difference between a predetermined reference voltage (403) and a real high voltage detected by a high voltage detection means (402), drive current difference storage means (406) for storing in advance the amount of device difference variation of a real drive current detected by drive current detection means (408), and drive control value correction means (409) for correcting at least one of a target value of a drive current to a fuel injection valve (105) and a target value of a drive time, on the basis of at least one result of the high voltage difference detection means and the drive current difference storage means, and corrects a target control value of the fuel injection valve on the basis of at least one detection result of the variation of the detected high voltage and the variation of the current for driving the fuel injection valve. | ||||||
| 82 | DRIVE DEVICE FOR FUEL INJECTION DEVICE | US15546432 | 2016-02-01 | US20180017005A1 | 2018-01-18 | Ryo KUSAKABE; Takatoshi IIZUKA; Takao MIYAKE; Masashi SUGAYA; Kiyotaka OGURA; Shirou YAMAOKA |
| The purpose of the present invention is to provide a drive device that improves the precision of injection quantities by stabilizing the behavior of a valve body 214 under the condition that a valve body reaches a height position lower than a maximum height position and making the injection pulse width and the injection quantity gradient small. The present invention is a drive device for a fuel injection device for use in an internal combustion engine, wherein: the fuel injection device is provided with a valve body 214 that can open and close a fuel passage, a needle 202 that activates an opening and closing valve by transmitting power between itself and the valve body 214, and an electromagnet that comprises a solenoid 205 and a fixed core 207 provided as drive means for the needle 202, and a cylindrical nozzle holder 201 disposed on the outer peripheral side of the needle 202; and the drive device 150 controls a drive current flowing to the coil so as to decrease from the maximum drive current to a first drive current 610 that is lower than the maximum drive current before the valve body 214 reaches the maximum height position so that the valve body 214 reaches a height position lower than the maximum height position. | ||||||
| 83 | Method for actuating an electromagnetic load and a corresponding circuit | US12887888 | 2010-09-22 | US09159480B2 | 2015-10-13 | Patrick Bauer; Mehmet Oencel; Ralph Bauer; Bernd Schelling; Thomas Holst; Georg Hoegele |
| A method is proposed for actuating an electromagnetic load (3) which can be switched between at least two switching states, particularly a magnetic valve, wherein switching between a first and a second of the switching states takes place as a result of a current flowing through the load (3) by means of applying an electrical voltage to said load (3). Provision is thereby made for the voltage to be clocked upon application thereof to said load (3) if due to the applied voltage the switching process would occur without clocking outside of a current ramp-up. The invention furthermore relates to an electrical circuit for actuating an electromagnetic load (3). | ||||||
| 84 | METHOD FOR DETECTING AN ERROR IN THE OPENING BEHAVIOR OF AN INJECTOR | US14533577 | 2014-11-05 | US20150122000A1 | 2015-05-07 | Markus WILLIMOWSKI; Markus AMLER; Alexander SCHENCK ZU SCHWEINSBERG; Florian STIEF; Klaus JOOS |
| A method for detecting an error in the opening behavior of an injector of an internal combustion engine, the injector having an electromagnetically actuated valve element, a ballistic partial injection being carried out, the injector being ballistically activated, so that the valve element is not opened up to a lift stop, a ballistic closing delay period is determined, the determined ballistic closing delay period is compared with a reference value, and an error in the opening behavior of the injector is detected with the aid of the comparison. | ||||||
| 85 | Multi-layer piezoelectric element, and injection device and fuel injection system using the same | US13501040 | 2010-10-25 | US08857413B2 | 2014-10-14 | Masahiro Sato |
| A multi-layer piezoelectric element includes a columnar stacked body including an active portion including piezoelectric layers and internal electrode layers alternately laminated, and inactive portions including piezoelectric layers laminated, the inactive portions arranged at both ends in a stacked direction of the active portion; and a pair of external electrodes arranged on side faces of the columnar stacked body, the pair of external electrodes electrically connected to the internal electrode layers alternately. In at least one interlayer portion of the inactive portions, there are metal particles having a particle size smaller than that of piezoelectric ceramic particles forming the piezoelectric layers of the inactive portions, and the metal particles are scattered in a range including a region in which the internal electrode layers overlap each other when viewed in the stacked direction of the columnar stacked body. | ||||||
| 86 | Method to Detect Partial Failure of Direct-Injection Boost Voltage | US13738319 | 2013-01-10 | US20140190453A1 | 2014-07-10 | Ningsheng Qiao; Michael Cottrell; Francois Fabre |
| A power supply diagnostic circuit includes a switching power supply that generates a voltage for powering a fuel injector. An injector control module selectively applies the voltage to the fuel injector and monitors a resultant electrical current flow through the fuel injector. The switching power supply includes a dual path circuit comprising two inductors, two MOSFETs, and two diodes. The injector control module determines whether one path of the dual path circuit is defective based on the electrical current flow. | ||||||
| 87 | Emission reduction retrofit method and kit for EMD two-cycle diesel engines | US12496219 | 2009-07-01 | US08312865B2 | 2012-11-20 | James S. Dixon; Gregory Lee Schultz; Keith Mulder; Edward A Schlairet |
| A method for retrofitting an existing EMD 567/645 two-cycle diesel engine to reduce exhaust emissions includes the steps of removing mechanical fuel injectors and associated components and installing of electronic unit fuel injectors and associated components. Also disclosed is a kit for retrofitting an existing EMD 567/645 two-cycle diesel engine to reduce exhaust emissions. | ||||||
| 88 | MULTI-LAYER PIEZOELECTRIC ELEMENT, AND INJECTION DEVICE AND FUEL INJECTION SYSTEM USING THE SAME | US13501040 | 2010-10-25 | US20120228401A1 | 2012-09-13 | Masahiro Sato |
| A multi-layer piezoelectric element includes a columnar stacked body including an active portion including piezoelectric layers and internal electrode layers alternately laminated, and inactive portions including piezoelectric layers laminated, the inactive portions arranged at both ends in a stacked direction of the active portion; and a pair of external electrodes arranged on side faces of the columnar stacked body, the pair of external electrodes electrically connected to the internal electrode layers alternately. In at least one interlayer portion of the inactive portions, there are metal particles having a particle size smaller than that of piezoelectric ceramic particles forming the piezoelectric layers of the inactive portions, and the metal particles are scattered in a range including a region in which the internal electrode layers overlap each other when viewed in the stacked direction of the columnar stacked body. | ||||||
| 89 | Speed and position sensing device for EMD two-cycle diesel engines | US13029506 | 2011-02-17 | US08047181B2 | 2011-11-01 | Edward H. Harrison; Keith Mulder; Edward A Schlairet |
| A device is disclosed for sensing the speed of an EMD 567/645/710 two-cycle diesel engine having a crankcase, electronic fuel injectors and an electronic control system for controlling the electronic fuel injectors. The device includes a spline shaft sized for insertion into the crankcase of the engine so that the spline shaft rotates with the engine, a gear operably secured to the spline shaft to rotate with the spline shaft and sized to rotate with the engine in a 1:1 ratio, and at least one electronic sensor located adjacent the gear to sense rotation of the gear. The at least one electronic sensor is connectable to the electronic control system to provide electronic signals to the electronic control system for determining when to inject fuel with the electronic fuel injectors. Also disclosed is a method for retrofitting the engine and a kit for retrofitting the engine. | ||||||
| 90 | METHOD FOR ACTUATING AN ELECTROMAGNETIC LOAD AND A CORRESPONDING CIRCUIT | US12887888 | 2010-09-22 | US20110075314A1 | 2011-03-31 | Patrick Bauer; Mehmet Oencel; Ralph Bauer; Bernd Schelling; Thomas Holst; Georg Hoegele |
| A method is proposed for actuating an electromagnetic load (3) which can be switched between at least two switching states, particularly a magnetic valve, wherein switching between a first and a second of the switching states takes place as a result of a current flowing through the load (3) by means of applying an electrical voltage to said load (3). Provision is thereby made for the voltage to be clocked upon application thereof to said load (3) if due to the applied voltage the switching process would occur without clocking outside of a current ramp-up. The invention furthermore relates to an electrical circuit for actuating an electromagnetic load (3). | ||||||
| 91 | Thermal type air flow meter | US09970897 | 2001-10-05 | US06557531B2 | 2003-05-06 | Hitoshi Ishikawa |
| To perform with high accuracy the analog-to-digital conversion of signals of an air flow meter irrespective of fluctuation of a reference voltage of an analog-to-digital conversion circuit. A thermal type air flow meter including means for measuring an intake air flow rate by heating and controlling a heating resistor and means for performing analog-to-digital conversion of an air flow rate signal of the air flow rate measurement means, which inputs a reference voltage to the analog-to-digital conversion circuit so that the reference voltage can be converted from the analog signal to the digital signal by the analog-to-digital conversion circuit, and the air flow rate signal can be corrected in accordance with the value of the reference voltage. A/D conversion of the air flow rate signal can be executed accurately even when the voltage of the reference voltage source of the A/D converter in an electrical control unit is fluctuating. | ||||||
| 92 | Electro-thermal pulsed fuel injector and system | US08482798 | 1995-06-07 | US06213089B1 | 2001-04-10 | Dah Yu Cheng |
| A concept of pulse input thermal energy to induce a rapid volume change in a vessel is introduced to provide rapid pressure raise as a means to inject fuel into internal combustion engines. A computer and sensors are incorporated to provide pulse width, height and multiple pulse using engine conditions such as RPM, exhaust pollution and efficiency, etc. as control parameters. | ||||||
| 93 | Combined start bypass and safety pressure relief valve for a fuel system | US391739 | 1995-02-21 | US5572974A | 1996-11-12 | Russell J. Wakeman |
| A high pressure fuel system includes a combination bypass and safety pressure release valve across the high pressure fuel pump. The combination valve allows the feed pump to directly provide fuel to the system before the high pressure pump reaches full output pressure. The valve also releases overpressure in the system when the high pressure pump is deadheaded. The combination valve includes a check ball which allows fuel to flow from its input to its output when the pressure is greater at its input than at its output. | ||||||
| 94 | Method of operating a multi-cylinder diesel engine | US198582 | 1994-02-18 | US5417194A | 1995-05-23 | Ulrich Augustin |
| In a method of operating a multi-cylinder Diesel engine in which fuel delivered by an engine-driven high-pressure pump is supplied to a high-pressure line from where it is admitted through injectors to the associated cylinders by an engine speed synchronous pulse and the pressure in the fuel line is determined by a pressure sensor at a certain operating point present during fuel delivery and, upon failure of the synchronous pulse, a pressure signal generated at this operating point is used to start the injection sequence with the activation of one of the injectors, and the time spans between subsequent operating points in the injection sequence are determined and, if a deviation between the time spans exceeds a limit value, another injector is selected for the start of another injection sequence, which is used as a new start of the injection sequence until the time spans between the various operating points in the high-pressure fuel supply lines which are a measure for engine speed are essentially the same. | ||||||
| 95 | Variable displacement high pressure pump for fuel injection systems | US268669 | 1994-06-30 | US5404855A | 1995-04-11 | Bai-Mao Yen; Lester L. Peters; Julius P. Perr; Bryan W. Swank |
| A variable displacement high pressure pump having a plurality of high pressure pumping units which receive fuel from a low pressure fuel pump. A rotary cam-driven roller tappet, for producing pumping displacement of the pumping plunger of a respective pumping element, is connected to the pumping plunger by a separated link in a manner permitting the pumping plunger to float relative to the roller tappet during at least a portion of each pumping cycle. As a result, the capacity of the pumping chamber can be limited to an extent that is less than the full stroke achievable by the pumping plunger being retracted to the maximum extent which is permitted by the driving cam. In this way, the quantity of fuel to be pressurized and injected into the common rail does not have to be determined by a cutting-off of a spilling flow of excess metered fuel during the compression stroke of the pumping plunger, so that a low pressure solenoid valve can be used, in the case of time-stroke and time-pressure metering, and no solenoid is required to control metering in the case of pressure-time metering. | ||||||
| 96 | Electromagnetic on-off valve | US663925 | 1991-03-25 | US5123626A | 1992-06-23 | Walter Schlagmuller; Helmut Rembold; Martin Muller; Ehrtfried Baumel |
| An electro-magnetic on-off valve for controlling the opening area of a fluid line, in particular for fuel injection pumps, having a valve element constructed on a valve needle, said valve element cooperating with a valve seat. The valve needle is connected to a magnetic armature of an electromagnet, the magnetic armature moving in a fluid for the purpose of achieving high switching speeds, and being sealed with respect to the liquid-conducting region of the valve. For any purpose of extensive damping of the rebound oscillations which occur when the valve closes and lead to the re-opening of the valve, the connection between the magnetic armature and valve needle is produced by a coupling and which is designed in such a way that after the rebound of the valve element against the valve seat occurring when the valve closes, the magnetic armature and the valve needle oscillate in phase opposition with respect to one another. | ||||||
| 97 | Fuel supply regulating apparatus | US728507 | 1991-07-11 | US5119789A | 1992-06-09 | Yasuya Kajiwara |
| An apparatus for regulating fuel supply according to fuel mixture ratio comprising a light source (5) for radiating a light beam (7) through fuel (3), a light path defining unit (26) for defining a light path for the light beam (7) in accordance with a refraction ratio of the fuel, and a light receiver (24) for receiving the light beam passed through the fuel. The light receiver (24) has connected thereto an actuator (32,43,47) for moving at least one of the light source (5), the light path defining unit (26) and the light receiver (24) by an amount sufficient to keep the light beam (7) always impinging at a constant position on the light receiver (24). The actuator (47) is connectable to a fuel regulator (46,48) for adjusting the fuel supply to an engine in accordance with the amount of the movement of the above components. | ||||||
| 98 | Fuel injection | US369503 | 1989-06-21 | US4955350A | 1990-09-11 | William C. Albertson |
| A pressure regulator has a spool valve positioned by a linear motor to control flow through a spill passage from a fuel inlet to a fuel outlet and thereby control the fuel pressure in the inlet as a function of the current in the linear motor, a piston subjected to the pressure in the fuel inlet and defining a variable orifice adapted to create a reference pressure at a desired differential from the pressure in the fuel inlet, a diaphragm subjected to the reference pressure and the pressure in the air inlet, and a valve positioned by the diaphragm to control flow from the air inlet to the air outlet whereby the pressure in the air inlet is maintained at a desired differential below the pressure in the fuel inlet. | ||||||
| 99 | Nozzle system for engines | US172402 | 1988-03-24 | US4823756A | 1989-04-25 | Mariusz Ziejewski; Hans J. Goettler |
| A nozzle assembly having a premix chamber is provided for the injection ofremixed fuel and air or other gas into a diesel ingine cylinder. Air, or other gas, is supplied continuously to the premix chamber through a port connected to a high pressure reservoir. Fuel is delivered into the premix chamber through a typical poppet injection nozzle. The passage orientation into the premix chamber and the magnitude of the fuel and air pressure determine the mixing level. By pressure of the air, the compressed fuel-air mixture is injected, into the diesel engine cylinder. To remove fuel remaining in the injection cavity and injection orifices, an air injection follows the fuel-air mixture injection. After the air injection, the fuel for the next cycle is promptly injected into the premix chamber to allow about 700 crank angle degrees for premixing with air and vaporization in the operation of a four stroke engine. | ||||||
| 100 | Fuel injector | US904378 | 1986-09-08 | US4700678A | 1987-10-20 | George D. Elliott |
| An injector (10) for delivering fuel directly into an engine combustion chamber (11) in response to compression within the combustion chamber (11). The injector (10) has a housing (14) with an injector rod (22) slidably mounted within housing (14). Secured to the injector rod (22) is a primary piston (24), a metering spool (25), and a secondary piston (32). The metering spool (25) is located within a metering chamber (26) having a bypass chamber (50) in which is located two series of electrodes (60 and 62) which are connected to an electrical system which sequentially provides an electrical signal to the connector (56) as dictated by the needs of the engine. As the electrical signal is supplied to connector (56), an electro-rheological fluid (64) contained within the metering chamber (26) is converted from a liquid to a substantially solid condition, thereby limiting the travel of the metering spool (25) and the secondary piston (32). Thus, a predetermined, measured amount of fuel is delivered from the supply chamber (36) into the combustion chamber (11) of the engine. The device (10) is provided with a glow plug (68) for firing the mixture within the combustion chamber (11). | ||||||
QQ群二维码
意见反馈
意见反馈