HIGH-PRESSURE PUMP
    82.
    发明公开
    HIGH-PRESSURE PUMP 有权
    高压泵

    公开(公告)号:EP2655851A1

    公开(公告)日:2013-10-30

    申请号:EP11811370.3

    申请日:2011-12-12

    IPC分类号: F02M53/00 F02M55/04 F02M59/44

    摘要: A high-pressure pump includes a plunger capable of reciprocating, and a housing having a pressurizing chamber in which fuel is pressurized by the plunger, and a fuel chamber through which the fuel flows toward and from the pressurizing chamber. The pump includes a spring that biases the plunger so as to increase the volume of the r pressurizing chamber, and a spring seat that is fixed to the housing and is in contact with one end of the spring. A first space that communicates with the fuel chamber via a fuel passage is provided between the bottom of the spring seat and the housing, and a top face of the bottom exposed to the first space is covered with a heat insulating member.

    摘要翻译: 高压泵包括能够往复运动的柱塞和具有加压室和燃料室的壳体,所述燃料通过所述加压室由所述柱塞加压,所述燃料通过所述燃料室朝向和来自所述加压室流动。 泵包括弹簧,该弹簧偏压柱塞以增加r加压室的容积;以及弹簧座,固定到壳体并与弹簧的一端接触。 经由燃料通路与燃料室连通的第一空间设置在弹簧座的底部与壳体之间,并且暴露于第一空间的底部的顶面由绝热构件覆盖。

    A high-pressure pump for an internal-combustion engine
    84.
    发明公开
    A high-pressure pump for an internal-combustion engine 审中-公开
    Hochdruckpumpefüreine Brennkraftmaschine

    公开(公告)号:EP1657429A1

    公开(公告)日:2006-05-17

    申请号:EP04425838.2

    申请日:2004-11-12

    CPC分类号: F04B1/0404

    摘要: Described herein is a pump (7) for supplying a pressurized fuel to an internal-combustion engine, provided with: a body (16); a compartment (17) made within the body (16); at least one pumping element (13) housed in a mobile way in the compartment (17) for raising the pressure of the fuel; fluid-supply means (21) for delivering the fuel to the pumping element (13); and an inlet mouth (20) made in the body (16), supplied with the fuel coming directly from an external source (2) and fluidically connected to the compartment (17) for supplying it with the fuel for the purpose of lubricating and/or cooling the pump (7) itself; the fluid-supply means (21) comprise at least one further inlet mouth (21), which is made in the body (16) and is fluidically connected to the pumping element (13) for supplying it with the fuel received directly from the external source (2).

    摘要翻译: 本文描述了一种用于向内燃机提供加压燃料的泵(7),其具有:主体(16); 在主体(16)内制成的隔室(17); 至少一个泵送元件(13)以可移动的方式容纳在隔室(17)中,用于提高燃料的压力; 用于将燃料输送到泵送元件(13)的流体供应装置(21); 以及在主体(16)中制成的入口(20),其供应直接从外部源(2)流出的燃料,并与流体连接的隔室(17)供应燃料,以便润滑和/ 或冷却泵(7)本身; 流体供应装置(21)包括至少一个另外的入口(21),其在主体(16)中制成并且流体地连接到泵送元件(13),以向其提供直接从外部接收的燃料 来源(2)。

    Fuel injector with non-metallic tip insulator
    87.
    发明公开
    Fuel injector with non-metallic tip insulator 审中-公开
    燃料喷射阀与所述喷嘴的非金属隔离

    公开(公告)号:EP1256712A2

    公开(公告)日:2002-11-13

    申请号:EP02005498.7

    申请日:2002-03-11

    申请人: Caterpillar Inc.

    IPC分类号: F02M53/00 F02M53/04 F02M61/16

    CPC分类号: F02M53/04 F02F7/0087

    摘要: A fuel injector (10) is provided which has an injector body (11) with a metallic tip (12) having an outer surface. A non-metallic insulator (16), such as a ceramic, is attached to the tip (12) and covers a portion of the outer surface. Injector tip overheating can be a problem, especially during sustained two-cycle boosted engine compression release braking. In addition, injector tip overheating can be a problem when an engine is experiencing simultaneous engine compression release braking and exhaust braking.

    HUBGESTEUERTES VENTIL ALS KRAFTSTOFF-ZUMESSEINRICHTUNG EINES EINSPRITZSYSTEMS FÜR BRENNKRAFTMASCHINEN
    88.
    发明公开
    HUBGESTEUERTES VENTIL ALS KRAFTSTOFF-ZUMESSEINRICHTUNG EINES EINSPRITZSYSTEMS FÜR BRENNKRAFTMASCHINEN 有权
    用于内燃发动机的计量装置的行程阀燃油喷射系统

    公开(公告)号:EP1240424A1

    公开(公告)日:2002-09-18

    申请号:EP01998729.6

    申请日:2001-11-16

    申请人: ROBERT BOSCH GMBH

    发明人: DUTT, Andreas

    摘要: The invention relates to a stroke-controlled valve which is used as a fuel metering device of an injection system for internal combustion engines. Said valve has a valve needle (11) which can be actuated axially against the resistance of a spring (24), which is arranged in a graduated, coaxial recess (13) in a valve body (10) and which interacts with a valve seat (17) which is configured in the recess (13) of the valve body (10), hereby controlling the fuel injection process. The valve also comprises a high-pressure area (18) which is connected to an allocated injection nozzle and which is located in front of the valve seat (17), a low-pressure area (28) which is located behind the valve seat and which opens out into the fuel return passage (30); and a low-pressure compensating piston (22) which coaxially adjoins the valve (16, 17) and which is solidly connected to the valve needle. The invention is characterised in that a first control edge (39 or 42) is configured on the low-pressure compensating piston (22). Said control edge interacts with a second control edge (40 or 43) on the valve body recess (13) in the area of the fuel return passage (45, 30) or (48, 30) in such a way that a throttle cross-section (38, 38a or 46, 44a) that is dependent on the valve stroke (41) is formed between the two control edges (39, 40 or 42, 43).

    Distributor arrangement
    89.
    发明公开
    Distributor arrangement 有权
    Verteileranordnung

    公开(公告)号:EP0978648A2

    公开(公告)日:2000-02-09

    申请号:EP99305647.2

    申请日:1999-07-16

    IPC分类号: F02M41/06 F02M41/16 F02M53/00

    CPC分类号: F02M53/00 F02M41/06 F02M41/16

    摘要: A distributor arrangement is disclosed which comprises a distributor member (18) rotatable within a bore formed in a sleeve (14), the sleeve (14) being provided with a supply port (22) through which fuel under high pressure can be supplied to the distributor member (18), in use, and a plurality of delivery ports (26), the distributor member (18) being provided with a delivery passage (32) registrable with the delivery ports (26), in turn, upon rotation of the distributor member (18) whereby fuel under pressure supplied through the supply port (22) flows to a selected one of the delivery ports (26), in use, the distributor arrangement further comprising a porting arrangement whereby, when the distributor member (18) occupies a position in which the delivery passage is not registered with any of the delivery ports (26), cooling fluid is able to flow through the delivery passage (32).

    摘要翻译: 公开了一种分配器装置,其包括可在形成在套筒(14)内的孔内旋转的分配器构件(18),套筒(14)设置有供应口(22),高压燃料可以通过该供应口 分配器构件(18),以及多个输送口(26),分配器构件(18)设置有可随着输送口(26)可分配的输送通道(32) 分配器构件(18),由此通过供应端口(22)供应的压力下的燃料在使用中流动到所选择的一个输送端口(26),所述分配器装置还包括端口装置,由此当分配器构件(18) 占据了输送通道未与任何输送口(26)一起登记的位置,冷却流体能够流过输送通道(32)。