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公开(公告)号：EP3908743A1
公开(公告)日：2021-11-17
申请号：EP20700346.8
申请日：2020-01-08
申请人： Robert Bosch GmbH
发明人： KRESCHEL, Henning , STREICHER, Bernd , WAHR, Gerd , FELLMANN, Mark-Florian , HIELSCHER, Andreas , SCHWARZ, Thomas , NIERYCHLO, Thomas , KESSLER, Martin
IPC分类号： F02M57/00
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公开(公告)号：EP1714024B1
公开(公告)日：2016-05-11
申请号：EP04802770.0
申请日：2004-11-19
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M63/0026 , F02M47/027 , F02M51/005 , F02M61/166
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公开(公告)号：EP2156045B1
公开(公告)日：2010-11-24
申请号：EP08736615.9
申请日：2008-04-29
申请人： Robert Bosch GmbH
发明人： STREICHER, Bernd , NUSSBAUMER, Ralf , HEINZ, Rudolf , MENNICKEN, Michael , RAPP, Holger , STOECKLEIN, Wolfgang , FALTIN, Christian , EISENMENGER, Nadja
CPC分类号： F02M47/027 , F02M63/007 , F02M63/0071 , F02M63/008
摘要： The invention relates to an injector (1) for injecting fuel into a combustion chamber of an internal combustion engine, particularly a common rail injector, comprising a control valve (18) having an axially adjustable valve sleeve (17) that is guided on the outer circumference, the control valve being used to release and block the fuel flow through a discharge duct (14) introduced in a valve piece in the direction of a low-pressure region (12) of the injector (1) from a control chamber (5), which is operatively connected to an axially adjustable valve element (2). According to the invention, the valve sleeve (17) is guided on the outer circumference by a guide element (26), the element being formed as a component that is separate from the valve piece (6) and fixed to the valve piece (6).
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公开(公告)号：EP0970309B1
公开(公告)日：2003-09-03
申请号：EP98963344.1
申请日：1998-11-12
申请人： ROBERT BOSCH GMBH
发明人： STREICHER, Bernd
CPC分类号： F04B1/0439 , F02M59/06 , F02M63/0225 , F04B1/0421
摘要： The invention relates to a radial piston pump for feeding high pressure fuel in fuel injection systems of internal combustion engines, more particularly in a common rail injection system, comprising a drive shaft (4) located in a pump housing (2) which has an eccentric configuration or has cam-like protuberances in the peripheral direction, and, preferably, several pistons (12) arranged radially in a corresponding cylinder chamber (18) in relation to the drive shaft (4), which can move back and forth in the radial direction in the corresponding cylinder chamber (18) by rotating the drive shaft (4). As part of the present invention, it was proven that the piston skirt in contact with the drive shaft (4) was damaged during operation. The invention has the aim of providing a radial piston pump, in which damages to the piston skirt are prevented. This is achieved by arranging a transverse force receiving device (9) between the piston (12) and the drive shaft (4). This provides the advantage that only forces in longitudinal direction are exerted on the pistons, which implies that practically no torque is exerted on the pistons.
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公开(公告)号：EP1049868B1
公开(公告)日：2002-05-08
申请号：EP99906058.5
申请日：1999-01-18
申请人： ROBERT BOSCH GMBH
发明人： STREICHER, Bernd , SCHWARZ, Thomas
CPC分类号： F02M59/08 , F02M59/06 , F02M63/0225 , F04B53/16
摘要： Die Erfindung betrifft eine Pumpenanordnung zur Kraftstoffhochdruckversorgung bei Kraftstoffeinspritzsystemen von Brennkraftmaschinen mit einem Pumpengehäuse (2), das mehrere Pumpenelemente umfasst, in denen Kraftstoff mit Hochdruck beaufschlagt wird, wobei der mit Hochdruck beaufschlagte Kraftstoff über ein Hochdruckkanalsystem von den einzelnen Pumpenelementen zu einer gemeinsamen Hochdruckanschlussbohrung (8) gefördert wird. Das Hochdruckkanalsystem umfasst mehrere Hochdruckkanäle (6, 7), die mit den Pumpenelementen in Verbindung stehen und in einer anderen Ebene angeordnet sind als die gemeinsame Hochdruckanschlussbohrung (8), in der die Hochdruckkanäle (6, 7) zusammentreffen. Durch die Anordnung der gemeinsamen Hochdruckanschlussbohrung in einer anderen Ebene als die Hochdruckkanäle können die Hochdruckkanäle exzentrisch auf die Hochdruckanschlussbohrung treffen.
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公开(公告)号：EP1049868A1
公开(公告)日：2000-11-08
申请号：EP99906058.5
申请日：1999-01-18
申请人： ROBERT BOSCH GMBH
发明人： STREICHER, Bernd , SCHWARZ, Thomas
CPC分类号： F02M59/08 , F02M59/06 , F02M63/0225 , F04B53/16
摘要： The invention relates to a pump system for supplying fuel at high pressure in fuel injection systems of internal combustion engines, comprising a pump housing (2) with several pump elements in which fuel is subjected to high pressure. After being subjected to high pressure, said fuel is conveyed from the individual pump elements to a joint high pressure connecting bore (8) via a high pressure channelling system. The high pressure channelling system in the inventive pump system comprises several high pressure channels (6, 7) which are connected to the pump elements and which are located at a different level to the joint high pressure connecting bore (8) where they meet. Since the joint high pressure connecting bore (8) and the high pressure channels (6, 7) are located at different levels, the high pressure channels can meet the high pressure connecting bore excentrically.
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公开(公告)号：EP0950149A1
公开(公告)日：1999-10-20
申请号：EP98942485.0
申请日：1998-07-02
申请人： ROBERT BOSCH GMBH
发明人： STREICHER, Bernd
CPC分类号： F04B1/0443 , F02M63/0225 , F04B53/04
摘要： The invention relates to a multi-cylinder piston pump for high pressure fuel supply in fuel injection systems in internal combustion engines, particularly in a common-rail-injection system. The invention is characterized in that an even bearing surface (26) of the housing piece (22) rests, radially from the outside in relation to the motor shaft (4), against an even bearing surface (28) of the metallic base body (30) of the housing. A housing piece (22) section (66), which is concentric in relation to the cylinder chamber (12) and faces the motor shaft, extends through a radial opening (67) in the housing base body (30) towards the motor shaft (4). The fuel supply opening (46) and the fuel outlet (61) open onto the even bearing surface (26) and are aligned with other supply or outlet openings (47, 65) in the housing base body (30). The housing piece (22) is screwed (69) against the housing base body (30) in such a way that the bearing surfaces (26, 28) ensure high pressure sealing without the use of intermediary sealing elements.
摘要翻译： 本发明涉及用于内燃机中的燃料喷射系统中的高压燃料供应的多缸活塞泵，特别是在共轨喷射系统中。 本发明的特征在于，所述壳体件的甚至轴承表面（26）（22）搁置，径向地从外侧相对于所述马达轴（4），对金属基体的连轴承表面（28）（ 30）的住房。 相对于汽缸室（12）同心且面向电机轴的壳体件（22）部分（66）延伸穿过壳体基体（30）中的径向开口（67）朝向电机轴 4）。 燃料供应开口（46）和燃料出口（61）通向均匀支承表面（26）并且与壳体基体（30）中的其他供应或出口开口（47,65）对齐。 壳体件（22）以这样的方式拧紧（69）抵靠壳体基体（30），使得轴承表面（26,28）在不使用中间密封元件的情况下确保高压密封。
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公开(公告)号：EP2145100A1
公开(公告)日：2010-01-20
申请号：EP08708642.7
申请日：2008-02-04
申请人： Robert Bosch GmbH
发明人： STREICHER, Bernd , HEINZ, Rudolf , SPINDLER, Susanne , HAUG, Stefan , RAPP, Holger , STOECKLEIN, Wolfgang , FALTIN, Christian
CPC分类号： F02M51/0635 , F02M61/20 , F02M2200/30 , F02M2200/306
摘要： The invention relates to an injection valve (10), particularly for the injection of fuel into the combustion spaces of internal combustion engines. The injection valve (10) comprises an anchor assembly which, in turn, has an anchor plate (20) and an anchor bolt (18). A seat (30) of the injection valve (10) is unblocked or closed off by the anchor assembly. The anchor plate (20) of the anchor assembly comprises a number of anchor wings (22), pairs of which have different inherent frequencies.
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公开(公告)号：EP1636483B1
公开(公告)日：2007-07-18
申请号：EP04721823.5
申请日：2004-03-19
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M47/027 , F02M57/024 , F02M63/0026 , F02M2200/215 , F02M2200/703
摘要： Disclosed is a valve for controlling liquids, comprising a retaining member (31) that is provided with an accommodating space (32) inside which an especially piezoelectric actuator unit and a hydraulic coupling module (34) are arranged. Said coupling module (34) encompasses at least one positioning piston (37) and at least one actuating piston (39) that is effectively connected to the positioning piston (37) via a hydraulic coupler (38) and actuates a valve-closing member (27) which cooperates with at least one valve seat (29, 30) and blocks a fluid from flowing from a valve chamber (25) to a backflow duct (45) in the closed position. The positioning piston (37) is directed within the accommodating space (32) by means of a seal (50).
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公开(公告)号：EP1636483A1
公开(公告)日：2006-03-22
申请号：EP04721823.5
申请日：2004-03-19
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M47/027 , F02M57/024 , F02M63/0026 , F02M2200/215 , F02M2200/703
摘要： Disclosed is a valve for controlling liquids, comprising a retaining member (31) that is provided with an accommodating space (32) inside which an especially piezoelectric actuator unit and a hydraulic coupling module (34) are arranged. Said coupling module (34) encompasses at least one positioning piston (37) and at least one actuating piston (39) that is effectively connected to the positioning piston (37) via a hydraulic coupler (38) and actuates a valve-closing member (27) which cooperates with at least one valve seat (29, 30) and blocks a fluid from flowing from a valve chamber (25) to a backflow duct (45) in the closed position. The positioning piston (37) is directed within the accommodating space (32) by means of a seal (50).
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