专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20160108879A1 METHOD AND DEVICE FOR OPERATION OF A HIGH PRESSURE FUEL PUMP 有权
标题翻译：高压燃油泵的运行方法和装置
公开(公告)号：US20160108879A1
公开(公告)日：2016-04-21
申请号：US14892057
申请日：2014-05-22
申请人： SCANIA CV AB
发明人： Kim KYLSTRÖM
IPC分类号： F02M63/02 , F02M59/02 , F02D41/38
CPC分类号： F02M63/027 , F02D41/08 , F02D41/221 , F02D41/3845 , F02D2041/224 , F02D2250/31 , F02M59/022 , F02M59/04 , F02M59/08 , F02M59/366 , F02M63/0225 , Y02T10/40
摘要： In a high pressure pump in a system for fuel injection in a combustion engine, determining whether a predetermined partial load operating condition prevails in the combustion engine, at which one single of several pump elements (10) in the high pressure pump is capable of alone delivering a fuel pressure requested in an accumulator tank (6), according to a first reference value, and to achieve a reproducible increase of the fuel pressure to a second reference value. If applicable, the high pressure pump's pump elements are controlled so that one single pump element alone delivers the fuel pressure in the accumulator tank according to the first reference value, whereupon this reference value is changed to the second reference value, and the actual development of the pressure in the accumulator tank as a function of time is determined, and compared with stored values of similar developments for the determination of information regarding the pump element's performance ability.
摘要翻译：在用于内燃机中燃料喷射的系统中的高压泵中，确定在内燃机中是否存在预定的部分负荷运行条件，高压泵中几个泵元件（10）中的单个单元能够单独根据第一参考值提供在蓄液箱（6）中要求的燃料压力，并且实现燃料压力可再现的增加到第二参考值。如果适用，高压泵的泵元件被控制，使得一个单独的泵元件根据第一参考值单独地传递蓄液箱中的燃料压力，由此将该参考值改变为第二参考值，并且实际开发确定蓄液箱中作为时间的函数的压力，并与确定与泵元件的性能能力有关的信息的类似开发的存储值进行比较。

2. 发明申请

US20190093612A1 FUEL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND A METHOD TO INCREASE THE VAPORIZATION TEMPERATURE OF A FUEL USED IN A FUEL SYSTEM 审中-公开
公开(公告)号：US20190093612A1
公开(公告)日：2019-03-28
申请号：US16081837
申请日：2017-02-02
申请人： Scania CV AB
发明人： Kim KYLSTRÖM , Tryggve NYLANDER
IPC分类号： F02M37/20 , F02M37/00
摘要： The present invention relates to a fuel system for an internal combustion engine, and a method to increase vaporization temperature of a fuel in the fuel system, which fuel system comprises a fuel tank, a fuel pump, a fuel filter device arranged downstream of the fuel pump, a first fuel conduit through which the fuel pump is arranged to supply fuel through the fuel filter device. A control valve, which opens and/or closes at a pre-determined pressure arranged upstream of the fuel filter device and downstream of the fuel pump, and a check valve arranged upstream of the fuel pump to prevent the fuel from flowing back to the fuel tank. A pressure, which is less than the pre-determined opening pressure of the control valve, is built up in the fuel pump after the internal combustion engine is turned off, for increasing vaporization temperature for hot start of the vehicle.

3. 发明申请

US20190353127A1 FUEL INJECTOR AND RELATED DEVICES 审中-公开
公开(公告)号：US20190353127A1
公开(公告)日：2019-11-21
申请号：US16470015
申请日：2017-12-05
申请人： Scania CV AB
发明人： Raoul ILIA , Carl-Johan CEDERBERG , Andreas ANDERSSON , Kim KYLSTRÖM
IPC分类号： F02M61/16 , F02M47/00 , F02M55/00 , F02M61/10 , B05B1/30 , B05B15/18
摘要： The present disclosure relates to a fuel injector for supplying fuel into a combustion chamber of an internal combustion engine. The fuel injector comprises an injector body, a nozzle, a needle, and a nozzle retainer removably arranged at the injector body to retain the nozzle against the injector body. The nozzle comprises a first channel adapted to contain fuel. The injector body comprises a second channel adapted to contain fuel. The first and second channels are fluidically connected. The needle is slidably arranged in the first and second channels. The needle comprises an upper needle section and a lower needle section. The lower needle section is removably connected to the upper needle section. The present disclosure also relates to a nozzle for a fuel injector, a lower needle section for a fuel injector, and an internal combustion engine comprising a fuel injector.

4. 发明申请

US20190316554A1 FUEL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20190316554A1
公开(公告)日：2019-10-17
申请号：US16317468
申请日：2017-07-17
申请人： Scania CV AB
发明人： Adam BERG , Kim KYLSTRÖM , Emil KYLBERG , Patrik FOGELBERG
IPC分类号： F02M37/18 , F02D41/30
摘要： The present invention relates to a fuel system for a combustion engine, the fuel system comprising a low-pressure circuit comprising at least one fuel tank, at least one low-pressure fuel pump, a first fuel filter and a second fuel filter which is arranged downstream of the first fuel pump, and a high-pressure circuit comprising a high-pressure fuel pump. The high-pressure fuel pump comprises means to suck fuel from the low-pressure circuit and in case of failure in the at least one low-pressure fuel pump, to suck fuel from the low-pressure circuit and the fuel is arranged to by-pass the at least one low-pressure fuel pump and optionally, at least one of the first or second fuel filters, via at least one by-pass pipe comprising a check valve that prevents the flow of fuel back to the fuel tank.

5. 发明申请

US20190316542A1 METHOD AND SYSTEM FOR DIAGNOSING UNINTENDED FUELLING FROM FUEL INJECTORS OF AN ENGINE 审中-公开
公开(公告)号：US20190316542A1
公开(公告)日：2019-10-17
申请号：US16315518
申请日：2017-06-19
申请人： SCANIA CV AB
发明人： Kim KYLSTRÖM , Roger HÄLLEBERG , Ola STENLÅÅS
IPC分类号： F02D41/38 , F02D41/30
摘要： Provided is a method for diagnosing unintended fuelling from one or more fuel injectors of a multi cylinder internal combustion engine during engine operation. Pressurized fuel is intended to be distributed by means of said fuel injectors from said accumulator tank to the cylinders for combustion. An oxidation catalyst is arranged downstream said cylinders. The method comprises: determining the pressure in the fuel accumulator tank and whether said pressure is decreasing; and determining whether the actual amount of fuel provided by the pump unit exceeds the demanded amount of fuel. The method further comprises the steps of: determining whether the temperature associated with the oxidation catalyst is above a certain level and/or determining whether the air/fuel ratio is below a certain level and/or determining whether an amount of particulate matter is above a certain level; and confirming an unintended fuelling based on the determined conditions.

6. 发明申请

US20170226977A1 HIGH PRESSURE FUEL PUMP FOR A FUEL SYSTEM 审中-公开
公开(公告)号：US20170226977A1
公开(公告)日：2017-08-10
申请号：US15500810
申请日：2015-08-27
申请人： Scania CV AB
发明人： Kim KYLSTRÖM
IPC分类号： F02M59/36 , F04B53/14 , F04B17/04 , F02M59/46
CPC分类号： F02M59/367 , F02M59/368 , F02M59/46 , F02M63/02 , F04B17/04 , F04B53/14
摘要： The present invention relates to a high pressure fuel pump comprising an inlet channel in connection with a first chamber, through which inlet channel fuel is led to the first chamber, a second chamber arranged in connection with the first chamber, an outlet valve arranged in connection with the second chamber and an inlet valve comprising a piston, with a first end section and a second end section. The piston is moveably arranged with the first end section in a third chamber, and the second end section is moveably arranged between the first chamber and the second chamber. A press element is arranged to act on the piston with a mechanic force, so that the piston strives to be positioned with the second end section closing the connection between the first chamber and the second chamber. The inlet valve is in a closed state and may be controlled via an electromagnetic unit.

7. 发明申请

US20160084188A1 METHOD FOR CONTROLLING A LOW PRESSURE CIRCUIT BY EMPLOYING FUTURE CONDITIONS 审中-公开
标题翻译：通过使用未来条件控制低压电路的方法
公开(公告)号：US20160084188A1
公开(公告)日：2016-03-24
申请号：US14889517
申请日：2014-05-16
申请人： SCANIA CV AB
发明人： Dan CEDFORS , Kim KYLSTRÖM , Patrik FOGELBERG , Anders JONSSON , Carina FORSBERG
IPC分类号： F02D41/30 , F01N9/00
CPC分类号： F02D41/3082 , B60K2015/0319 , F01N9/002 , F01N2430/085 , F01N2610/03 , F01N2900/0412 , F01N2900/0416 , F01N2900/12 , F01N2900/1606 , F02D41/3854 , F02D2200/701 , F02D2200/702 , F02M37/0064 , F02M37/0088 , Y02T10/47
摘要： A method and a system for control of a low-pressure circuit in a fuel system of a vehicle, which circuit is arranged to provide the vehicle's engine with fuel from at least one fuel tank via a pressure change system. The system includes a determination unit to make a determination of a future working point for the engine. The determination unit bases this determination on information about a section of road ahead. The system also has a pump operating unit which operates at least one controllable fuel pump which is part of the low-pressure circuit. The pump operating unit bases this operation on the future working point.
摘要翻译：一种用于控制车辆的燃料系统中的低压回路的方法和系统，该电路被布置成经由压力变化系统从至少一个燃料箱向车辆的发动机提供燃料。该系统包括用于确定发动机的未来工作点的确定单元。决定单位根据有关前方路段的信息确定这一决定。该系统还具有操作至少一个作为低压回路的一部分的可控燃油泵的泵操作单元。该泵操作单元将此操作作为未来工作点。

8. 发明申请

US20220389880A1 SYSTEM AND METHOD FOR OPERATING A FUEL SUPPLY PUMP OF A VEHICLE 有权
公开(公告)号：US20220389880A1
公开(公告)日：2022-12-08
申请号：US17777133
申请日：2020-11-23
申请人： Scania CV AB
发明人： Adam BERG , Kim KYLSTRÖM , Peter GUSTAFSSON
IPC分类号： F02D41/02 , F02D1/02 , F02D41/14
摘要： The invention relates to a method for operating a fuel supply pump of a vehicle, the vehicle comprising a combustion engine system and a gearbox, the method comprising the steps of: determining one or more operational values of at least one operational parameter of the combustion engine system; determining a reduction of a fuel provision rate to the combustion engine system; determining whether a gear step change of the gearbox is at hand, on the basis of the determined one or more operational values of the at least one operational parameter; and in case a gear step change of the gearbox is at hand, controlling operation of the fuel supply pump so as to maintain fuel supply pump speed.

9. 发明申请

US20190048838A1 FUEL INJECTOR 审中-公开
公开(公告)号：US20190048838A1
公开(公告)日：2019-02-14
申请号：US15759716
申请日：2016-09-12
申请人： SCANIA CV AB
发明人： Kim KYLSTRÖM
IPC分类号： F02M61/18
摘要： A fuel injector for a compression ignited engine comprises an injector nozzle with a nozzle body having at least one spray hole with a hole entry from a sack on the inside of the nozzle body and a hole exit on the outside of the nozzle body. The hole entry of the spray hole has a cross-section being elliptical and larger than the cross-section of the hole exit of the spray hole. The cross-sections of the hole entry and the hole exit of the spray hole are concentric as seen in the direction of a centre axis of the spray hole intersecting said cross-section.

10. 发明申请

US20160272131A1 METHOD FOR DETERMINING THE BULK MODULUS OF FUELS 有权
标题翻译：用于确定燃料的大块模块的方法
公开(公告)号：US20160272131A1
公开(公告)日：2016-09-22
申请号：US15030440
申请日：2014-11-07
申请人： SCANIA CV AB
发明人： Kim KYLSTRÖM , Roger HÄLLEBERG
IPC分类号： B60R16/023
CPC分类号： B60R16/0238 , B60R16/023 , H04L25/0278 , H04L2012/40273
摘要： A communication bus (B1, B2, Bp) in a motor vehicle (110) transfers electrical signals between the nodes (N1, N2, N3, Nn, N21, N2m, Np1, Npr) included in the motor vehicle. The communication bus comprises two unshielded signal lines (S1, S2) and a decoupling line (D), which are configured so as to divert undesired electromagnetic radiation deriving both from external systems that are not connected to the communication bus (B1, B2, Bp) and the electrical signals transferred via the unshielded signal lines (S1, S2). The decoupling line (D) is connected for alternating current to a ground potential in one and only one (N3) of the nodes (N1, N2, N3, Nn, N21, N2m, Np1, Npr) included in the communication system.
摘要翻译：机动车辆（110）中的通信总线（B1，B2，Bp）在包括在机动车辆中的节点（N1，N2，N3，Nn，N21，N2m，Np1，Npr）之间传送电信号。通信总线包括两个非屏蔽信号线（S1，S2）和去耦线（D），其被配置为转移不连接到通信总线（B1，B2，Bp）的外部系统导出的不期望的电磁辐射）和通过非屏蔽信号线（S1，S2）传送的电信号。在通信系统中包括的节点（N1，N2，N3，Nn，N21，N2m，Np1，Npr）中的一个且仅一个（N3）的节点（D）中连接有用于交流电流的接地电位。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式