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31. 发明公开

EP3578800A3 FUEL INJECTION SYSTEM, FUEL PUMP AND PLUNGER 审中-公开
公开(公告)号：EP3578800A3
公开(公告)日：2020-02-26
申请号：EP19177995.8
申请日：2019-06-03
申请人： Caterpillar Motoren GmbH & Co. KG
发明人： OHRT, Ole , TUEXEN, Thorsten
IPC分类号： F02M59/20 , F02M59/22 , F02M59/26
摘要： The present invention pertains to a fuel injection system (10) for use in an internal combustion engine comprising an injection nozzle (18) and a fuel pump (14) adapted for pressurizing fuel and for variably adjusting a feed rate of the pressurized fuel to be discharged to the injection nozzle (18) via a discharge valve of the fuel pump (14). The discharge valve is configured to open at a predetermined opening pressure so as to discharge the pressurized fuel from the fuel pump (14). In a non-injection mode of the fuel injection system (10), the fuel pump (14) is configured to pressurize fuel flowing through the fuel pump (14) to a pressure level higher than the opening pressure of the discharge valve.

32. 发明公开

EP3599371A1 PUMPING UNIT FOR FEEDING FUEL, PREFERABLY DIESEL FUEL, TO AN INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：EP3599371A1
公开(公告)日：2020-01-29
申请号：EP19185943.8
申请日：2019-07-12
申请人： Robert Bosch GmbH
发明人： Rizzi, Francesco , Gissi, Ruggiero
IPC分类号： F02M37/00 , F02M63/00 , F02M59/20 , F02M59/34
摘要： A pumping unit has a hydraulic circuit (8) which connects together a storage tank (2), a low-pressure pump (7), a high-pressure pump (6) and an internal combustion engine (3) and is provided with a valve unit (13) defined by an electric metering valve (22) and by an overflow valve (23) provided with respective closing members (26, 44) movable between respective closed and open positions in respective directions of movement (A, B) transverse to each other.

33. 发明公开

EP2631464A4 FUEL INJECTION PUMP INCLUDING A VARIABLE PRESSURE COMPARTMENT 审中-公开
公开(公告)号：EP2631464A4
公开(公告)日：2018-01-10
申请号：EP11834506
申请日：2011-03-21
申请人： HYUN DAI HEAVY IND CO LTD
发明人： PARK DEUK-JIN , KIM JU-TAE , KIM DONG-HUN , YOON WOOK-HYEON , KIM BYONG-SEOK , PARK TAE-HYUNG , HA EUN , NO BEOM-YONG
IPC分类号： F02M59/44 , F02M59/02 , F02M59/10 , F02M59/20 , F02M59/22 , F02M59/46 , F04B1/053 , F04B11/00 , F04B49/12 , F04B49/16
CPC分类号： F04B7/00 , F02M59/022 , F02M59/20 , F02M59/205 , F02M59/22 , F02M59/462 , F04B1/053 , F04B11/0016 , F04B11/0033 , F04B49/12 , F04B49/16
摘要： The present invention relates to a fuel injection pump having a variable pressure chamber which can adjust a fuel injection timing according to each engine load with a simple structure and a lower manufacture cost compared to the conventional injection pump without a separate apparatus for moving a barrel as well as not modifying a shape of a plunger. The fuel injection pump having the variable pressure chamber further includes a pressure adjustment means including a contact plug of which lower portion is inserted and installed in the upper cover; a cylinder of which lower portion is inserted and installed in the contact plug and having the variable pressure chamber formed inside thereof; a main fuel pressing hole formed in the upper cover and the barrel to connect the variable pressure chamber of the cylinder and a plunger insertion hole of the barrel; a piston installed in the variable pressure chamber of the cylinder to enable an upward and downward sliding motion thereof; and a manual pressure adjustment unit installed on an upper portion of the cylinder to enable a vertical height adjustment to elastically support the upper portion of the piston.

34. 发明授权

EP2640958B1 NIEDERDRUCKKREISLAUF FÜR EIN KRAFTSTOFFEINSPRITZSYSTEM SOWIE KRAFTSTOFFEINSPRITZSYSTEM 有权
标题翻译： NIEDERDRUCKKREISLAUFFÜREIN KRAFTSTOFFEINSPRITZSYSTEM SOWIE KRAFTSTOFFEINSPRITZSYSTEM
公开(公告)号：EP2640958B1
公开(公告)日：2017-01-11
申请号：EP11778635.0
申请日：2011-11-04
申请人： Robert Bosch GmbH
发明人： KIEFERLE, Stefan , VEIT, Guenter , FAUTER, Gerald , MEYER-SALFELD, Steffen
IPC分类号： F02M63/00 , F02M37/08 , F02M59/06 , F02M59/08 , F02M59/20 , F02M63/02 , F02M37/04 , F02M59/34
CPC分类号： F02M63/0001 , F02M37/0052 , F02M59/06 , F02M59/08 , F02M59/205 , F02M59/34 , F02M63/0265 , F02M2200/27

35. 发明公开

EP2904258A1 HOCHDRUCKPUMPE 审中-公开
公开(公告)号：EP2904258A1
公开(公告)日：2015-08-12
申请号：EP14725441.1
申请日：2014-05-20
申请人： Continental Automotive GmbH
发明人： SCHMIDBAUER, Thomas
IPC分类号： F02M59/08 , F02M59/20
CPC分类号： F02M59/08 , F02M59/20
摘要： The invention relates to a high-pressure pump (1) comprising a housing (3) having a housing cavity (5). The high-pressure pump (1) has a first pump piston (10) and a second pump piston (15), which are arranged in the housing cavity (5) in such a way that the first pump piston and the second pump piston can each be moved axially between a top dead center and a bottom dead center. The high-pressure pump (1) has a high-pressure chamber (17) for compressing the fluid, which high-pressure chamber (17) is common to the first pump piston (10) and the second pump piston (15).
摘要翻译：本发明涉及一种高压泵（1），其包括具有壳体腔（5）的壳体（3）。所述高压泵（1）具有第一泵活塞（10）和第二泵活塞（15），所述第一泵活塞（10）和第二泵活塞（15）以这样的方式布置在所述壳体空腔（5）中，使得所述第一泵活塞和所述第二泵活塞每个都在上死点和下死点之间轴向移动。高压泵1具有用于压缩流体的高压腔17，该高压腔17与第一泵活塞10和第二泵活塞15共用。

36. 发明公开

EP2647824A1 Injection pump systems and methods of operation 有权转让
标题翻译： Einspritzpumpensystem
公开(公告)号：EP2647824A1
公开(公告)日：2013-10-09
申请号：EP12163322.6
申请日：2012-04-05
申请人： Delphi Technologies Holding S.à.r.l.
发明人： Harcombe, Anthony
IPC分类号： F02M59/20 , F02M59/36 , F02M63/02 , F02M59/46
CPC分类号： F02M59/205 , F02M59/366 , F02M59/367 , F02M59/462 , F02M59/466 , F02M63/023
摘要： The present invention relates to an injection pump system (1). An injection pump (3) is provided for supplying high pressure fuel. A low pressure fuel line (5) is provided in fluid communication with an inlet of the injection pump (3). A high pressure fuel line (7) is provided in fluid communication with an outlet of the injection pump (3) and a fuel rail. A control valve (27) is provided for controlling filling of the injection pump (3). The injection pump system is provided with a control unit for controlling operation of the control valve (27). The control unit is configured to close the control valve (27) to inhibit the supply of fuel to the injection pump when the rail pressure is within a target pressure range. The invention also relates to a method of operating an injection pump system. An aspect of the invention also relates to a fuel injection system.
摘要翻译：本发明涉及一种注射泵系统（1）。提供一种用于供应高压燃料的注射泵（3）。低压燃料管路（5）设置成与注射泵（3）的入口流体连通。提供与喷射泵（3）的出口和燃料轨道流体连通的高压燃料管线（7）。设置有用于控制注射泵（3）的填充的控制阀（27）。喷射泵系统设置有用于控制控制阀（27）的操作的控制单元。控制单元构造成当轨道压力在目标压力范围内时关闭控制阀（27）以禁止向喷射泵供应燃料。本发明还涉及一种操作注射泵系统的方法。本发明的一个方面还涉及一种燃料喷射系统。

37. 发明公开

EP1930582A3 Fuel injection apparatus for engines and method of operating the apparatus 审中-公开
标题翻译：用于该装置的发动机和操作方法的燃料喷射装置
公开(公告)号：EP1930582A3
公开(公告)日：2011-09-07
申请号：EP07111359.1
申请日：2007-06-29
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Takashi, Kaneko
IPC分类号： F02M59/20 , F02M63/02 , F02M59/36
CPC分类号： F02M63/0225 , F02M59/243 , F02M59/366
摘要： A fuel injection apparatus for engines is provided, with which occurrence of cavitation erosion on constituent parts of the high pressure fuel pump and fuel feed line to the pump in the apparatus is suppressed and high durability is attained even in the case of a high pressure fuel pump increased largely in capacity. Each of high pressure fuel pumps (20) to supply high pressure fuel to a common rail (7) comprises an electromagnetic valve (1) which is controlled by a controller (100) such that fuel is discharged from the plunger room (3) by closing the electromagnetic valve (1) in the up stroke of the plunger (2) until the plunger reaches its top dead center, the electromagnetic valve (1) is kept closed for some period in the down stroke of the plunger (2), then the electromagnetic valve (1) is opened to allow the plunger room (3) to be communicated with a fuel feed/spill passage (20b).

38. 发明公开

EP2356329A1 FUEL DELIVERY AND CONTROL SYSTEM INCLUDING A POSITIVE DISPLACEMENT ACTUATION PUMP WITH A VARIABLE PRESSURE REGULATOR SUPPLEMENTING A FIXED DISPLACEMENT MAIN FUEL PUMP 有权转让
标题翻译：加油和控制系统
公开(公告)号：EP2356329A1
公开(公告)日：2011-08-17
申请号：EP09820988.5
申请日：2009-09-29
申请人： WOODWARD, INC.
发明人： BAKER, Carthel, C.
IPC分类号： F02M59/20 , F02M59/24 , F02M37/00 , F04D27/00
CPC分类号： F02C7/236 , F02C9/30 , F02C9/36 , F05D2260/406 , Y02T50/671 , Y10T137/85954 , Y10T137/86131 , Y10T137/86163
摘要： A fuel delivery and control system is provided including a dual pump fluid circuit configuration comprising a fixed positive displacement pump sized to supply the main engine burn flow ranging from above windmill through cruise, a positive displacement actuation pump including a variable pressure regulator, wherein the actuation pump is sized to supply fluid to engine actuators, valves and other hydraulically operated engine components and a pump flow sharing system interconnecting the two pumps. The combined flow from the two pumps is sufficient to meet the engine flow demand for windmill relight and maximum flow conditions. During cruise or normal operating conditions, the pumps operate in completely isolated flow circuits, minimizing recirculation and therefore heat input into the fuel supply system.

39. 发明公开

EP2337937A2 LOW PRESSURE FEED PUMP CONTROL FOR A HIGH PRESSURE COMMON RAIL FUEL INJECTION SYSTEM 审中-公开
标题翻译： LOW高压泵控制的高压配电线燃油喷射
公开(公告)号：EP2337937A2
公开(公告)日：2011-06-29
申请号：EP09736474.9
申请日：2009-09-18
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： KOJIMA, susumu , SUGIMOTO, Tomojiro
IPC分类号： F02D41/30 , F02D41/24 , F02D41/06 , F02M37/10 , F02D41/38 , F02M59/20 , F02M63/02
CPC分类号： F02D41/3082 , F02D41/062 , F02D41/2448 , F02D41/3845 , F02D2200/0602 , F02D2250/31 , F02M37/10 , F02M59/366 , F02M63/025
摘要： In a fuel supply apparatus for an internal combustion engine, fuel is delivered to a high pressure fuel pump (7) driven by an internal combustion engine, using an electrically-operated low pressure fuel pump (6), and the fuel pressurized by the high pressure fuel pump (7) is supplied to the internal combustion engine. The fuel supply apparatus includes a low pressure pump control portion (42) that controls the low pressure fuel pump (6) to avoid a discharge failure in the high pressure fuel pump (7) due to insufficiency of a feed pressure at which the low pressure fuel pump (6) delivers the fuel to the high pressure fuel pump (7). The low pressure pump control portion (42) stops the low pressure fuel pump (6) in a case where the discharge failure in the high pressure fuel pump (7) is avoided even when the feed pressure is equal to a gauge pressure of 0.

40. 发明公开

EP2226491A1 Fuel-injection system for an internal-combustion engine 有权
标题翻译： System zur Kraftstoffeinspritzungfüreinen Verbrennungsmotor
公开(公告)号：EP2226491A1
公开(公告)日：2010-09-08
申请号：EP09425060.2
申请日：2009-02-16
申请人： C.R.F. Società Consortile per Azioni
发明人： Ricco, Mario , Stucchi, Sergio , Ricco, Raffaele , De Michele, Onofrio , Altamura, Chiara , Lepore, Domenico
IPC分类号： F02M59/20 , F02M59/36
CPC分类号： F02M59/205 , F02M59/36
摘要： The fuel-injection system comprises a variable-capacity high-pressure pump (7), having at least one pumping element (18) provided with an intake valve (25) in communication with an intake duct (10) and with a delivery valve (30) in communication with a delivery duct (8). A dosage device (27) is designed to dose the flow rate of the pump (7) as a function of the running conditions of the engine and is associated with a pressure regulator (32) designed to discharge the excess fuel into a compartment (35) of a sump (33) of the high-pressure pump (7) for lubricating the usual actuation mechanism (26) of the pumping element (18). The dosage device (27) is provided with two outlets (29, 39), of which one outlet (29) supplies the delivery valve (25), whilst the other outlet (39) is in communication with a discharge duct (12), through a compartment (35) of the sump (33) of the pump (7). A control unit (16) activates the two outlets (29, 39) alternately in a complementary way, so that the formation of any pressure wave on the intake duct (10) is prevented when the outlet (29) towards the pumping element (18) is deactivated.
摘要翻译：燃料喷射系统包括可变容量的高压泵（7），其具有设置有与进气管道（10）连通的进气阀（25）和排出阀（至少一个）的至少一个泵送元件（18） 30）与输送管道（8）连通。剂量装置（27）被设计成根据发动机的运行条件来计算泵（7）的流量，并且与设计成将多余燃料排放到隔室（35）中的压力调节器（32）相关联）用于润滑泵送元件（18）的通常致动机构（26）的高压泵（7）的贮槽（33）。剂量装置（27）设置有两个出口（29,39），其中一个出口（29）供应输送阀（25），而另一个出口（39）与排放管道（12）连通，通过泵（7）的贮槽（33）的隔室（35）。控制单元（16）以互补的方式交替地启动两个出口（29,39），使得当出口（29）朝向泵送元件（18）时，防止在进气管道（10）上形成任何压力波）被禁用。

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