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公开(公告)号：US11719205B2
公开(公告)日：2023-08-08
申请号：US16087209
申请日：2017-03-23
IPC分类号： F02M55/00 , F02M61/14 , F02M67/02 , F02M69/16 , F02M19/03 , F02M71/00 , F02M57/00 , F02M69/04
CPC分类号： F02M55/008 , F02M19/03 , F02M55/00 , F02M61/14 , F02M67/02 , F02M69/16 , F02M71/00 , F02M57/00 , F02M69/047 , F02M2200/856
摘要： A dual fluid injection system which comprises a liquid fuel metering device, a fluid delivery device, and apparatus providing an interface therebetween. The interface conveys liquid fuel along a flow path from the metering device to a mixing zone for mixing with air from a pressurized supply to provide an air-fuel mixture for injection by the fluid delivery device into a combustion chamber of an internal combustion engine. The flow path may involve a directional change by way of a turn section. The flow path is sized such that liquid fuel is retained therein by virtue of capillary action, whereby a quantity of liquid fuel is retained after a delivery event such that the flow path remains substantially filled with liquid fuel in readiness for the next delivery event during operation of the engine.
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公开(公告)号：US11078876B2
公开(公告)日：2021-08-03
申请号：US16660053
申请日：2019-10-22
发明人： Yuri Sakamoto , Tomohiro Kanaya , Takafumi Nishio
摘要： An estimation unit estimates a fuel pressure on a discharge side of a high-pressure pump based on an amount of fuel injection with a fuel injection valve from a time point at which a detected fuel pressure changes from a higher status than a first pressure to a lower status, assuming that the fuel has not been discharged with the high-pressure pump. The determination unit determines that a relief valve is in an open status based on a dropping mode of the estimated fuel pressure and a dropping mode of the detected fuel pressure.
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公开(公告)号：US10746120B2
公开(公告)日：2020-08-18
申请号：US16094273
申请日：2017-03-09
发明人： Vincent Dian , Matthias Scheid
摘要： Various embodiments may include a method for operating a diesel-common-rail piezo-operated servo injector comprising: partially charging the piezo-actuator from a non-charged state at 0 V (method a); partially discharging the piezo-actuator from an already charged state to a remaining limited charge (method b); measuring the piezo-voltage with both methods and comparing the results; when the comparison demonstrates correspondence within a predefined threshold, using method b in ranges in which method a cannot be carried out; and when the comparison does not demonstrate correspondence within the predefined threshold, using method a without using method b.
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公开(公告)号：US20200224603A1
公开(公告)日：2020-07-16
申请号：US16248907
申请日：2019-01-16
申请人： Caterpillar Inc.
发明人： Hoisan KIM , Robert M. CAMPION , Steven C. TAYLOR , Bao FENG
摘要： A fuel injector system includes an injector body having a proximal end and a distal end, the injector body defining a nozzle having an outlet. The injector system includes a spill valve fluidly connected to the outlet and having a spill valve member movable between an open position and a closed position. The injector system includes a control valve including a control valve member movable between an open position and a closed position. The injector system includes a check valve fluidly connected to the outlet, the control valve including a check valve needle movable between an open position and a closed position. The injector system also includes an electrical monitoring circuit configured to output a signal indicative of at least one of the open position or the closed position of the spill valve member.
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公开(公告)号：US10669974B2
公开(公告)日：2020-06-02
申请号：US15773251
申请日：2016-10-27
发明人： Bruce Palmer
摘要： It is widely appreciated that renewable sources of energy are desirable. In particular, in recent years the development of biodiesel has been encouraged in order to find a replacement for fossil fuels in internal combustion engines. Typically, such biodiesel is based on triacylglycerols of vegetable origin. Animal fat, due to its different chemical composition and production process presents additional challenges when attempted to be used as a source of fuel. Most known methods require extensive processing of naturally occurring fats in order for them to be usable in conventional engines. According to the present invention, there is provided a method of oxidizing organic fats within an internal combustion engine to generate power by applying a first electrical charge to an oxidizer (e.g. air) and applying a second electrical charge to the organic fat opposite in polarity to the first electrical charge. In this way, constituents of the organic fat to be oxidized are attracted to the oxidizer, in preference to an interior surface of the combustion chamber. Thus, carbonization of the interior surface of the combustion chamber is reduced, as material contributing to carbonization is retained within exhaust gas.
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公开(公告)号：US10605153B2
公开(公告)日：2020-03-31
申请号：US15335907
申请日：2016-10-27
发明人： Xiaogang Zhang
IPC分类号： F02B19/02 , F02M26/71 , F02M67/06 , F02M26/37 , F02M26/51 , F02M26/70 , F02M26/01 , F02M45/00 , F02M57/00 , F02M61/14 , F02M63/00
摘要： An engine, fuel injector, and method are disclosed. The method may include aligning an exhaust gas passage with an exhaust gas source to allow exhaust gas to enter a pre-chamber for a first duration; aligning a fuel passage with a fuel source to allow fuel to enter the pre-chamber for a second duration; and aligning injector nozzle connectors with injector nozzles, for a third duration, to allow a mixture of the fuel and the exhaust gas to be injected from the pre-chamber to the combustion chamber.
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公开(公告)号：US20200049115A1
公开(公告)日：2020-02-13
申请号：US16660053
申请日：2019-10-22
发明人： Yuri SAKAMOTO , Tomohiro KANAYA , Takafumi NISHIO
摘要： An estimation unit estimates a fuel pressure on a discharge side of a high-pressure pump based on an amount of fuel injection with a fuel injection valve from a time point at which a detected fuel pressure changes from a higher status than a first pressure to a lower status, assuming that the fuel has not been discharged with the high-pressure pump. The determination unit determines that a relief valve is in an open status based on a dropping mode of the estimated fuel pressure and a dropping mode of the detected fuel pressure.
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公开(公告)号：US10508617B2
公开(公告)日：2019-12-17
申请号：US16173223
申请日：2018-10-29
申请人： Hydro-Ject, LLC
发明人： Eran Sher , Ian Kurt Rosen
IPC分类号： F02B47/02 , F02M25/022 , F02M57/00 , F02B51/02 , F02M27/02 , F01N5/02 , F02M25/038 , F02P19/02 , F02M25/035 , F02B13/10 , F02D19/12
摘要： An internal combustion engine includes a combustion chamber. The chamber includes a body that is movable in the chamber to vary the chamber volume and contains a catalyst. First valving is operable to admit an intake gas into the chamber and second valving connected with an aqueous fluid supply system is operable to admit an aqueous fluid and a steam reforming fuel into the chamber. A controller is configured to cause the second valving to admit a aqueous fluid and an amount of the steam reforming fuel into the chamber and when a predetermined condition exists in the chamber during compression of the intake gas to absorb heat generated by the compression of the intake gas in the presence of the catalyst to promote a steam reformation process to separate hydrogen from the steam reforming fuel or the aqueous fluid.
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公开(公告)号：US20190301412A1
公开(公告)日：2019-10-03
申请号：US15739174
申请日：2016-06-08
IPC分类号： F02M51/06 , F02D41/20 , F02M47/02 , F02M57/00 , F02M61/12 , F02M61/18 , F02M65/00 , B05B1/30
摘要： A nozzle assembly of a fuel injector includes a nozzle body in which a needle member is adapted to translate. The nozzle assembly is further provided with an electrical circuit so that an electrical signal enabling contact detection is measurable between the needle member and the nozzle body. The nozzle assembly also includes a piezoresistive device which continuously varies the electrical signal during the final closing displacements, or the initial opening displacements, of the needle, the variations of the signal being a function of a differential pressure.
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公开(公告)号：US10330063B2
公开(公告)日：2019-06-25
申请号：US15567025
申请日：2016-03-01
申请人： Robert Bosch GmbH
发明人： Martin Bernhaupt
IPC分类号： F02M57/00
摘要： A fuel injector includes an injector housing, a longitudinally movable nozzle needle, and a force sensing element. The injector housing defines a nozzle chamber, a pressure chamber, and a measuring chamber. The nozzle chamber is configured to be supplied with pressurized fuel via a feed line formed in the injector housing. The pressure chamber is configured to be hydraulically connected to the feed line. The nozzle needle is disposed in the nozzle chamber and is configured to open and to close at least one spray hole. The force sensing element is disposed in the measuring chamber and is configured to detect a pressure in the pressure chamber. The measuring chamber is separated from the pressure chamber by a diaphragm-like intermediate wall. The force sensing element supports the intermediate wall.
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