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    • 72. 发明公开
    • Variable injection rate high pressure fuel pump
    • 可变喷射率高压燃油泵
    • EP2243951A3
    • 2010-12-08
    • EP10007797.3
    • 2003-09-26
    • Electro-Motive Diesel, Inc.
    • Gottemoller, PaulPoola, Ramesh B.Tupek, Richard WayneGoetzke, Michael Barry
    • F02M59/16F02M59/26F02M45/06
    • F04B49/18F02M45/063F02M59/16F02M59/26
    • A high pressure fuel pump having a variable fuel injection rate, including a pump body, a pump cylinder formed in the pump body and a piston reciprocable within the pump cylinder, which defmes a pressurization chamber (120). The pump piston (106) has a reduced diameter portion which provides a primary piston (112). A piston annulus is slidably mounted thereon and provides a secondary piston (116). An annular actuation chamber (122) adjoins the secondary piston (116) opposite the pressurization chamber (120). An actuation passage is provided between a return fuel drain and the actuation chamber (122), which is selectively open or closed passively by pump piston (106) movement and/or dynamically by operation of an actuation solenoid valve (128). If the actuation chamber passage (124) is open, then during the pressurization stroke the secondary piston (116) will remain stationary relative to the pump body, but if it is closed then the secondary piston (116) must stroke in unison with the primary piston (112).
    • 一种具有可变燃料喷射速率的高压燃料泵,其包括泵体,形成在泵体中的泵缸和可在泵缸内往复运动的活塞,其限定加压室(120)。 泵活塞(106)具有减小直径的部分,其提供主活塞(112)。 活塞环可滑动地安装在其上并提供第二活塞(116)。 环形致动室(122)与加压室(120)相对地邻接次级活塞(116)。 在返回燃料排出口和致动室(122)之间提供致动通道,该致动通道被泵活塞(106)移动和/或通过操作致动电磁阀(128)动态地选择性地打开或关闭。 如果致动室通道(124)打开,则在增压冲程期间,次活塞(116)将相对于泵体保持静止,但是如果其关闭,则次活塞(116)必须与主活塞 活塞(112)。
    • 73. 发明公开
    • KOLBENPUMPE
    • EP0958453A1
    • 1999-11-24
    • EP98945071.0
    • 1998-07-30
    • ROBERT BOSCH GMBH
    • ALAZE, Norbert
    • F04B1B60T8F04B49F04B53
    • B60T8/4031F04B49/18F04B53/126
    • The invention relates to a piston pump (10), especially for use in a slip-regulated hydraulic vehicle braking system. The aim of the invention is to increase a volume displaced by the piston pump (10) at low displacement pressure. To this end, a body (24, 26; 92, 94, 96), preferably a ring body, is mounted on the piston (18) in such a way that it can be axially displaced. Said ring body enlarges the cross-sectional area of the piston and is impinged upon axially by an elastic element (34). Under low pressure, the piston pump (10) displaces a medium using the entire cross-sectional area of the piston (18) and the body (24, 26). Under high pressure, the body (24, 26; 92, 94, 96) is retained against the force of the elastic element (34) instead of moving with the piston (18) so that the piston (18) displaces the medium using its own cross-sectional area only. The inventive piston pump (10) has the advantage of being better able to build up pressure when the displacement pressure is low at the beginning of a displacement.
    • 本发明涉及一种活塞泵(10),特别是用于滑动调节式液压车辆制动系统。 本发明的目的是在低排量压力下增加由活塞泵(10)排出的体积。 为此,优选为环体的主体(24,26; 92,94,96)以能够轴向移动的方式安装在活塞(18)上。 所述环体扩大了活塞的横截面积并且被弹性元件(34)轴向地冲击。 在低压下,活塞泵(10)使用活塞(18)和主体(24,26)的整个横截面区域来排出介质。 在高压下,主体(24,26; 92,94,96)抵抗弹性元件(34)的力而被保持,而不是与活塞(18)一起移动,使得活塞(18)使用其 只有自己的横截面积。 本发明的活塞泵(10)具有在位移开始时排量压力低时能够更好地形成压力的优点。
    • 77. 发明公开
    • Actuator for a reciprocating slurry pump
    • AntriebfürSchlammkolbenpumpe。
    • EP0197632A2
    • 1986-10-15
    • EP86300961.9
    • 1986-02-12
    • HYDROSEAL CONCRETE PUMPS LIMITED
    • Dwyer, Anthony Frederick
    • F04B15/02
    • F04B49/18F04B9/1178F04B15/02Y10S417/90
    • 57 A pump has a reciprocatable pumping member driven by the actuator 14 shown, which comprises a cylinder 24 closed by a plunger 26. A hollow partition 28 divides the space between the plunger 26 and the cylinder 24 into two drive chambers 30a, 30b. Fluid can be selectably supplied at constant pressure to one or to both of the chambers to act on one or both of the faces 38, 40 and drive the plunger along the cylinder with differing force. The volume of fluid required to fully extend the actuator also differs, so that the actuator may be driven quickly or slowly with a low or high driving force from a supply providing fluid at a constant rate and pressure.
    • 泵具有由所示的致动器14驱动的可往复运动的泵构件。 其包括由柱塞26封闭的气缸24.中空隔板28将柱塞26和气缸24之间的空间分成两个驱动室30a,30b。 流体可以以恒定的压力可选地供应到一个或两个室,以作用于一个或两个面38,40,并且以不同的力沿着圆筒驱动柱塞。 完全延伸致动器所需的流体体积也不同,使得致动器可以以来自供给以恒定速率和压力的流体的供给的低或高驱动力快速或缓慢地驱动。
    • 79. 发明公开
    • Variable injection rate high pressure fuel pump
    • Einpritzmenggeschwindigkeit Brennstoffhochdruckpumpe
    • EP2243951A2
    • 2010-10-27
    • EP10007797.3
    • 2003-09-26
    • Electro-Motive Diesel, Inc.
    • Gottemoller, PaulPoola, Ramesh B.Tupek, Richard WayneGoetzke, Michael Barry
    • F02M59/16F02M59/26F02M45/06
    • F04B49/18F02M45/063F02M59/16F02M59/26
    • A high pressure fuel pump having a variable fuel injection rate, including a pump body, a pump cylinder formed in the pump body and a piston reciprocable within the pump cylinder, which defmes a pressurization chamber (120). The pump piston (106) has a reduced diameter portion which provides a primary piston (112). A piston annulus is slidably mounted thereon and provides a secondary piston (116). An annular actuation chamber (122) adjoins the secondary piston (116) opposite the pressurization chamber (120). An actuation passage is provided between a return fuel drain and the actuation chamber (122), which is selectively open or closed passively by pump piston (106) movement and/or dynamically by operation of an actuation solenoid valve (128). If the actuation chamber passage (124) is open, then during the pressurization stroke the secondary piston (116) will remain stationary relative to the pump body, but if it is closed then the secondary piston (116) must stroke in unison with the primary piston (112).
    • 一种具有可变燃料喷射速率的高压燃料泵,包括泵体,形成在泵体内的泵筒和可在泵缸内往复运动的活塞,其限定加压室(120)。 泵活塞(106)具有减小的直径部分,其提供主活塞(112)。 活塞环可滑动地安装在其上并提供第二活塞(116)。 环形致动室(122)邻接与加压室(120)相对的次级活塞(116)。 致动通道设置在回流燃料排放口和致动室(122)之间,该致动室通过泵活塞(106)的运动和/或动态地通过致动电磁阀(128)的动作而被动地选择性地打开或关闭。 如果致动室通道(124)打开,则在加压行程期间,次级活塞(116)将相对于泵体保持静止,但是如果其被关闭,则第二活塞(116)必须与主要活塞 活塞(112)。
    • 80. 发明公开
    • Variable injection rate high pressure fuel pump
    • 可变喷射率高压燃油泵
    • EP1418335A3
    • 2008-04-16
    • EP03021861.4
    • 2003-09-26
    • Electro-Motive Diesel, Inc.
    • Gottemoller, PaulPoola, Ramesh B.Tupek, Richard WayneGoetzke, Michael Barry
    • F02M59/16F02M59/26F02M45/06
    • F04B49/18F02M45/063F02M59/16F02M59/26
    • A high pressure fuel pump having a variable fuel injection rate, including a pump body, a pump cylinder formed in the pump body and a piston reciprocable within the pump cylinder, which defines a pressurization chamber (120). The pump piston (106) has a reduced diameter portion which provides a primary piston (112). A piston annulus is slidably mounted thereon and provides a secondary piston (116). An annular actuation chamber (122) adjoins the secondary piston (116) opposite the pressurization chamber (120). An actuation passage (124) is provided between a return fuel drain and the ctuation chamber (122), which is selectively open or closed passively by pump piston (106) movement and/or dynamically by operation of an actuation solenoid valve (128). If the actuation chamber passage (124) is open, then during the pressurization stroke the secondary piston (116) will remain stationary relative to the pump body, but if it is closed then the secondary piston (116) must stroke in unison with the primary piston (112).
    • 一种具有可变燃料喷射速率的高压燃料泵,其包括泵体,形成在泵体中的泵缸和可在泵缸内往复运动的活塞,活塞限定加压室(120)。 泵活塞(106)具有减小直径的部分,其提供主活塞(112)。 活塞环可滑动地安装在其上并提供第二活塞(116)。 环形致动室(122)与加压室(120)相对地邻接次级活塞(116)。 在返回燃料排出口和设备室(122)之间提供致动通道(124),其通过泵活塞(106)移动被动地选择性地打开或关闭和/或通过操作致动电磁阀(128)动态地打开或关闭。 如果致动室通道(124)打开,则在增压冲程期间,次活塞(116)将相对于泵体保持静止,但是如果其关闭,则次活塞(116)必须与主活塞 活塞(112)。