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1. 发明授权

US4410138A Unit injector cooled by timing control fluid 失效
标题翻译：单元喷油器由定时控制液冷却
公开(公告)号：US4410138A
公开(公告)日：1983-10-18
申请号：US336493
申请日：1981-12-31
申请人： Lester L. Peters , Timothy A. Warlick
发明人： Lester L. Peters , Timothy A. Warlick
IPC分类号： F02M57/02 , F02M59/30 , F02M45/00 , F02M53/04 , F02M55/00
CPC分类号： F02M59/30 , F02M57/021 , F02M57/023 , F02M57/024 , F02B2275/14 , Y02T10/123
摘要： A unit injector (200, 300, 400, 500, 600) of the cam actuated, open nozzle type is disclosed including an extremely compact injector body (202, 302, 402, 502) having a minimum number of internal flow passages and a two piece injector plunger (222, 308, 310, 412, 506, 510, 606, 612) arranged to provide pressure/time metering (all embodiments), scavenging fuel flow (all embodiments), hydraulic timing (all embodiments), fuel cut off (embodiments of FIGS. 1, 3 and 4), wear compensation in advance timing mode (all embodiments) and sharp cut off of fuel injection without high "crush" loads and wear compensation in retard and advance modes (embodiment of FIG. 3). All embodiments of this invention are characterized by an injector body (202, 302, 402, 502) having an exterior shape designed to form a fuel supply flow path and an isolated fuel drain flow path between the exterior surface of the injector body (202, 302, 402, 502) and the interior surface of the recess in which the injector (200, 300, 400, 500, 600) is designed to be received. This arrangement allows a very simple pattern of passages (mostly radial passages) to be formed in the injector body.
摘要翻译：公开了一种具有最小数量的内部流动通道的非常紧凑的喷射器主体（202,302,402,502）的凸轮致动的开放喷嘴型的单元喷射器（200,300,400,500,600），以及两个布置成提供压力/时间计量（所有实施例），清除燃料流（所有实施例），液压定时（所有实施例），燃料切断的部件喷射器柱塞（222,308,310,412,506,510,606,612）（图1，图3和图4的实施例），提前定时模式（所有实施例）中的磨损补偿和燃料喷射的尖锐切断，而没有高的“挤压”负载和在延迟和提前模式下的磨损补偿（图3的实施例）。本发明的所有实施例的特征在于具有外部形状的喷射器主体（202,302,402,502），该外部形状被设计成形成燃料供给流动路径和在喷射器主体（202,220,402,502）的外表面之间的隔离燃料排出流动路径， 302,402,502）和其中喷射器（200,300,400,500,600）被设计为被接收的凹部的内表面。这种布置允许在喷射器主体中形成非常简单的通道图案（主要是径向通道）。

2. 发明授权

US4986472A High pressure unit fuel injector with timing chamber pressure control 失效
标题翻译：高压单元燃油喷射器，具有定时室压力控制
公开(公告)号：US4986472A
公开(公告)日：1991-01-22
申请号：US402893
申请日：1989-09-05
申请人： Timothy A. Warlick , Jeffrey L. Campbell , Lester L. Peters , Michael E. Lucas , Julius P. Perr , Kuang-Wen T. Wan
发明人： Timothy A. Warlick , Jeffrey L. Campbell , Lester L. Peters , Michael E. Lucas , Julius P. Perr , Kuang-Wen T. Wan
IPC分类号： F02M57/02 , F02M59/30
CPC分类号： F02M57/021 , F02M57/023 , F02M57/024 , F02M59/30
摘要： A fuel injector includes an injector housing having a plunger assembly disposed within a central axial bore and including a lower plunger, an intermediate plunger, and an upper plunger. The lower plunger reciprocates within the central bore to meter a variable quantity of fuel during downward portions of the reciprocating motion. A timing spring is wound around the upper portion of the lower plunger to bias the lower plunger upwardly. A timing chamber formed between the upper and intermediate plungers receives timing fluid to create a hydraulic link between the plungers. Timing fluid exits the timing chamber through a central passage, which may have a reduced area regulating orifice, formed through the intermediate plunger, which is ordinarily closed by a valve mechanism. The valve mechanism is acted upon in part by the timing spring. To improve the pressure regulation using a higher spring load and to accommodate a larger area drainage passage, a valve spring biases closed the passage. The force provided by the valve spring is predetermined to open the valve mechanism and drain timing fluid when the timing fluid pressure exceeds the maximum pressure during injection. After injection is completed, timing fluid exits from the timing chamber either through the central passage or through a spillport which is closable by the nonbeveled lower portion of the upper plunger.

3. 发明授权

US4420116A Unit injector employing hydraulically controlled timing and fuel shut off 失效
标题翻译：单元喷油器采用液压控制定时和燃料关闭
公开(公告)号：US4420116A
公开(公告)日：1983-12-13
申请号：US336308
申请日：1981-12-31
申请人： Timothy A. Warlick
发明人： Timothy A. Warlick
IPC分类号： F02M57/02 , F02M59/30 , F02M45/00 , F02M53/04 , F02M55/00
CPC分类号： F02M59/30 , F02M57/021 , F02M57/023 , F02M57/024 , F02B2275/14 , Y02T10/123
摘要： A unit injector (200,300,400,500) of the cam actuated, open nozzle type is disclosed including an extremely compact injector body (202,302,402,502) having a minimum number of internal flow passages and a two piece injector plunger (222,308,310,412,506,510) arranged to provide pressure/time metering (all embodiments), scavenging fuel flow (all embodiments), hydraulic timing (all embodiments), fuel cut off (all embodiments), wear compensation in advance timing mode (all embodiments) and sharp cut off of fuel injection without high "crush" loads and wear injection without high "crush" loads and wear compensation in retard and advance modes (embodiment of FIG. 3). All embodiments of this invention are characterized by an injector body (202,302,402,502) having an exterior shape designed to form a fuel supply flow path and an isolated fuel drain flow path between the exterior surface of the injector body (202,302,402,502) and the interior surface of the recess in which the injector (200,300,400,500) is designed to be received. This arrangement allows a very simple pattern of passages (mostly radial passages) to be formed in the injector body.
摘要翻译：公开了一种具有最小数量的内部流动通道的非常紧凑的喷射器主体（202,302,402,502）和布置成提供压力/时间计量的两件式喷射器柱塞（222,308,310,412,506,510）的凸轮致动的开放喷嘴型的单元喷射器（200,300,400,500）所有实施例），清除燃料流（所有实施例），液压定时（所有实施例），燃料切断（所有实施例），预先定时模式（所有实施例）中的磨损补偿和燃料喷射的急剧切断而没有高的“挤压”负载并且在没有高的“挤压”载荷的情况下进行磨损注入，并且在延迟和提前模式中进行磨损补偿（图3的实施例）。本发明的所有实施例的特征在于具有外部形状的喷射器主体（202,302,402,502），该外部形状被设计成形成燃料供给流动路径和在喷射器主体（202,302,402,502）的外表面与喷射器主体的内表面之间的隔离的燃料排出流动路径其中喷射器（200,300,400,500）被设计为被接收的凹部。这种布置允许在喷射器主体中形成非常简单的通道图案（主要是径向通道）。

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