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1.发明授权Uncooled oilless internal combustion engine having uniform gas squeeze film lubrication 失效未冷却的无油内燃机具有均匀的气体挤压膜润滑
公开(公告)号：US4846051A
公开(公告)日：1989-07-11
申请号：US159614
申请日：1988-02-23
CPC分类号： F02B41/00 , F01M9/00 , F02F7/0007 , F02B2275/20
摘要： An apparatus for providing a gas phase film lubrication between a reciprocal piston and a cylinder of an uncooled oilless internal combustion engine; the piston is effective to drive a rotary crankshaft in response to an expanding gas charge. The apparatus comprises: (a) means connecting the crankshaft to said piston for transferring reciprocal thrust into rotary thrust, such means aligning the piston concentrically within the cylinder wall to limit the imposition of side loads on said piston (i.e., less than 80 psi); (b) interfacing walls on the piston and cylinder (i) sized to provide a predetermined annular gap therebetween at ambient conditions that has a radial dimension in the range of 0.001.+-.0.0005 inches, (ii) consisting of matched materials that prevent closure of the gap due to thermal expansion under the maximum temperature differential to be experienced between the piston and cylinder wall, and (iii) are preshaped to anticipate any thermal growth of the interfacing walls for maintaining the annular gap substantially constant at elevated temperatures.
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公开(公告)号：USRE34336E
公开(公告)日：1993-08-10
申请号：US729016
申请日：1991-07-10
CPC分类号： F01M9/00 , F02B41/00 , F02B2275/20
摘要： An apparatus for providing a gas phase film lubrication between a reciprocal piston and a cylinder of an uncooled oilless internal combustion engine; the piston is effective to drive a rotary crankshaft in response to an expanding gas charge. The apparatus comprises: (a) means connecting the crankshaft to said piston for transferring reciprocal thrust into rotary thrust, such means aligning the piston concentrically within the cylinder wall to limit the imposition of side loads on said piston (i.e., less than 80 psi); (b) interfacing walls on the piston and cylinder (i) sized to provide a predetermined annular gap therebetween at ambient conditions that has a radial dimension in the range of 0.001.+-.0.0005 inches, (ii) consisting of matched materials that prevent closure of the gap due to thermal expansion under the maximum temperature differential to be experienced between the piston and cylinder wall, and (iii) are preshaped to anticipate any thermal growth of the interfacing walls for maintaining the annular gap substantially constant at elevated temperatures.
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3.发明授权Apparatus for periodically oxidizing particulates collected from exhaust gases 失效用于周期性地氧化从废气中收集的微粒的装置
公开(公告)号：US4544388A
公开(公告)日：1985-10-01
申请号：US573277
申请日：1983-12-27
CPC分类号： F01N3/027 , F01N3/032 , F01N9/002 , F01N2330/12 , F01N2390/02 , F01N2390/04 , F01N2410/04 , F01N2510/06 , F02B1/04 , Y02T10/47 , Y10S55/10 , Y10S55/30
摘要： An apparatus is disclosed for regenerating a filter trap used to collect particulates from the exhaust gas of an internal combustion engine. The apparatus comprises: (a) an assembly providing a flow of a heat transfer medium through the filter trap: (b) an assembly for heating the heat transfer medium to a temperature effective to incinerate the particulates in the filter trap: and (c) a flow mask stationed in the flow of heat transfer medium, upstream from said filter trap, effective to divert the heat transfer medium away from the radially inner zone of the filter trap while guiding the heat transfer medium to engage and ignite the particulates along a radially outer region of the filter trap. The mask is a circular disc and spaced upstream from the filter trap effective to mask a central core area of the flow of heat transfer medium.The assembly for heating comprises one or more electrically heated resistance elements arranged in a planar coil configuration extending transversely across the flow of heat transfer medium. A flow diffuser is stationed upstream from the mask and is comprised of a plurality of foraminous plates effective to diffuse and slow down the flow of heat transfer medium for increasing heat exchange. The flow diffuser has a radiation reflective coating to limit heat losses and a member is employed for depressing the temperature required to ignite the particulates.
摘要翻译： 公开了一种用于再生用于从内燃机的废气中收集微粒的过滤阱的装置。 该设备包括：（a）组件，其通过过滤器捕集器提供传热介质的流动;（b）用于将传热介质加热到有效地焚化过滤器中的微粒的温度的组件;以及（c） 位于所述过滤器捕集器上游的传热介质流中的流动掩模有效地将传热介质转移离开过滤器捕集器的径向内部区域，同时引导传热介质沿径向接合和点燃微粒 过滤器阱的外部区域。 掩模是圆形盘，并且与过滤器阱的上游隔开，有效地掩盖传热介质流的中心核心区域。 用于加热的组件包括一个或多个电加热电阻元件，其布置成横向横跨传热介质流动的平面线圈构型。 流动扩散器驻留在掩模的上游，并且由多个有孔的板组成，有效地扩散和减缓传热介质的流动以增加热交换。 流动扩散器具有辐射反射涂层以限制热损失，并且使用构件来降低点燃微粒所需的温度。
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公开(公告)号：USRE34143E
公开(公告)日：1992-12-15
申请号：US756258
申请日：1991-09-06
CPC分类号： F01M9/00 , F02B23/0672 , F02F3/00 , F02F7/0085 , F16N15/00 , F01M2001/083 , F05C2203/0882 , F05C2253/16 , Y02T10/125
摘要： An oilless engine having a piston reciprocal within a cylinder and along an axis of such cylinder while providing an annular gap therebetween to receive combustion gases and a gas phase blow-by control system for such engine. The system comprises (a) an annular receptacle in at least one of said piston and cylinder; (b) an annular body of graphite carrying high temperature solid lubricant disposed in said annular receptacle, said body presenting a face projecting out of said receptacle: (c) an elastomer material retentive of elasticity at the maximum operating temperature to be experienced by said body, interposed between said body and receptacle to urge said body to close said gap under all operating conditions of said engine; and (d) axially directed grooves in said body face sized to substantially trap cylinders of combustion gases therein by viscosity under low pressure gradients and to limit the passage of a combustion gases through said grooves under high pressure gradients to one percent or less of the cylinder gas charge volume, the gas cylinders functioning as bearings to ride the piston during reciprocation.
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公开(公告)号：US5014511A
公开(公告)日：1991-05-14
申请号：US21847
申请日：1987-03-04
CPC分类号： F02D41/405 , F02D41/029 , F02B1/04 , F02B3/06 , Y02T10/44
摘要： A filtration system operative to remove oxidizable particulates from the exhaust gas of a diesel engine is disclosed. The system has a filter element to trap and collect particulates in the exhaust gas, ignition means supplied with energy for a period only sufficient to ignite a leading portion of the particulate collection, and means for conducting a flow of gas with excess oxygen through the filtration means immediately following ignition without addition of other energy, the flow of gas with excess oxygen being utilized to support the continued oxidation of the ignited particulate collection. The ignition means may comprise (a) apparatus for adding excess hydrocarbon fuel either to (i) the gas flow through the intake manifold of the engine, (ii) the exhaust gas exiting from the engine, or (iii) a separate supply of compressed air, and (b) a supplementary heated catalyst located between the exhaust manifold of the engine and the filter element for acting upon the hydrocarbon rich gas flow, the catalyst being effective to bring about ignition of the hydrocarbon rich gas and produce a heated exhaust gas high enough in temperature to ignite at least a portion of the particulates in the filter element.
摘要翻译： 公开了一种用于从柴油发动机的废气中除去可氧化颗粒的过滤系统。 该系统具有过滤元件，用于捕集和收集废气中的微粒，点火装置供应足够的时间，足以点燃颗粒物收集物的引导部分，以及用于通过过滤进行具有过量氧气的气体流动的装置 意味着在没有添加其他能量的情况下立即点燃，具有过量氧气的气体流被用于支持点燃的颗粒物收集物的持续氧化。 点火装置可以包括（a）用于将过量碳氢化合物燃料添加到（i）通过发动机的进气歧管的气流，（ii）从发动机排出的废气的装置，或（iii）单独的压缩的 空气和（b）位于发动机的排气歧管和过滤元件之间的辅助加热催化剂，用于作用于富含烃的气体流动，所述催化剂有效地引起富含烃的气体的点燃并产生加热的废气 足够高的温度以点燃过滤元件中的至少一部分微粒。
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公开(公告)号：US4686827A
公开(公告)日：1987-08-18
申请号：US849927
申请日：1986-04-09
IPC分类号： F01N3/027 , F01N3/032 , F01N3/20 , F01N3/28 , F01N13/02 , F02B1/04 , F02B3/06 , F02D41/02 , F02D41/40 , F01N3/02
CPC分类号： F01N3/2882 , F01N13/0097 , F01N3/027 , F01N3/032 , F01N3/2013 , F02D41/029 , F02D41/405 , F01N2250/02 , F02B1/04 , F02B3/06 , Y02T10/26 , Y02T10/44 , Y10S55/30
摘要： A filtration system operative to remove oxidizable particulates from the exhaust gas of a diesel engine is disclosed. The system has a filter element to trap and collect particulates in the exhaust gas, ignition means supplied with energy for a period only sufficient to ignite a leading portion of the particulate collection, and means for conducting a flow of gas with excess oxygen thorough the filtration means immediately following ignition without addition of other energy, the flow of gas with excess oxygen being utilized to support the continued oxidation of the ignited particulate collection. The ignition means may comprise (a) apparatus for adding excess hydrocarbon fuel either to (i) the gas flow through the intake manifold of the engine, (ii) the exhaust gas exiting from the engine, or (iii) a separate supply of compressed air, and (b) a supplementary heated catalyst located between the exhaust manifold of the engine and the filter element for acting upon the hydrocarbon rich gas flow, the catalyst being effective to bring about ignition of the hydrocarbon rich gas and produce a heated exhaust gas high enough in temperature to ignite at least a portion of the particulates in the filter element.
摘要翻译： 公开了一种用于从柴油发动机的废气中除去可氧化颗粒的过滤系统。 该系统具有过滤元件，用于捕集和收集废气中的微粒，点燃装置供应足够的能量以足以点燃颗粒物收集物的引导部分，以及用于通过过滤进行具有过量氧气的气体流动的装置 意味着在没有添加其他能量的情况下立即点燃，具有过量氧气的气体流被用于支持点燃的颗粒物收集物的持续氧化。 点火装置可以包括（a）用于将过量碳氢化合物燃料添加到（i）通过发动机的进气歧管的气流，（ii）从发动机排出的废气的装置，或（iii）单独的压缩的 空气和（b）位于发动机的排气歧管和过滤元件之间的辅助加热催化剂，用于作用于富含烃的气体流动，所述催化剂有效地引起富含烃的气体的点燃并产生加热的废气 足够高的温度以点燃过滤元件中的至少一部分微粒。
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公开(公告)号：US4621593A
公开(公告)日：1986-11-11
申请号：US685927
申请日：1984-12-24
CPC分类号： F02M25/14 , F02B47/00 , F02B77/04 , B60K15/00 , B60K15/04 , B60K2015/03348 , F02B1/04 , F02B3/06 , Y02T10/121
摘要： A dispensing apparatus is disclosed for adding a fluid agent to the fuel supply of an automotive engine, the agent is effective in depressing the ignition temperature of soot collected in an exhaust trap. The apparatus comprises: (a) a reservoir for containing a supply of the fluid agent such as copper octoate and hexane; (b) an electrically operated pulse pump for positively displacing a measured amount of the agent from the reservoir into the fuel supply; (c) register means for registering the amount of fuel replenished to the engine fuel supply and for transmitting an electrical signal proportional to the amount of fuel so added; and (d) control means responsive to the electrical signal to permit electrical operation of the pulse pump for a number of predetermined pulses to dispense a required amount of the agent for maintaining a desired uniform concentration of the agent throughout the fuel supply.
摘要翻译： 公开了一种用于将流体剂添加到汽车发动机的燃料供应的分配装置，该试剂有效地抑制了在排气阱中收集的烟灰的点燃温度。 该设备包括：（a）用于容纳诸如辛酸铜和己烷的流体剂供应的储存器; （b）电动脉冲泵，用于将测量量的试剂从储存器积极地置换到燃料供应中; （c）登记装置，用于登记补充到发动机燃料供应的燃料量，并传送与所添加的燃料量成比例的电信号; 和（d）响应于电信号的控制装置，允许脉冲泵的电气操作多个预定脉冲，以分配所需量的试剂，以维持整个燃料供应中所需试剂的均匀浓度。
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公开(公告)号：US4494375A
公开(公告)日：1985-01-22
申请号：US463688
申请日：1983-02-03
CPC分类号： F01N3/025 , F01N13/017 , F01N3/032 , F01N3/2882 , F01N2250/04 , F01N2330/06 , F02B3/06 , Y10S55/10 , Y10S55/30
摘要： A filtration system is disclosed which removes particulates from the exhaust gas of a diesel engine. The system has (a) a filter element, (b) oxidation means for conducting a flow of heated gas through at least a portion of the filter element, the heated gas being effective to ignite the particulates in that portion, and (c) a flow control means. The flow control means has walls dividing the filter element into first and second portions, and a flow diverter effective to normally permit full exhaust gas flow through both of said filter portions, and effective to selectively permit exhaust glow through only one of the filter portions while permitting flow of heated gas of the oxidation means through the other of said filter portions.
摘要翻译： 公开了一种从柴油发动机废气中除去微粒的过滤系统。 该系统具有（a）过滤元件，（b）氧化装置，用于使加热的气体流过过滤元件的至少一部分，加热的气体有效地点燃该部分中的微粒，以及（c） 流量控制装置。 流量控制装置具有将过滤元件分成第一和第二部分的壁和分流器，其有效地通常允许全部废气流过两个所述过滤器部分，并且有效地选择性地允许通过仅一个过滤器部分的排气辉光，同时 允许氧化装置的加热气体流过所述过滤器部分中的另一个。
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公开(公告)号：US4861243A
公开(公告)日：1989-08-29
申请号：US179446
申请日：1988-04-08
申请人： Wallace R. Wade
发明人： Wallace R. Wade
摘要： A plunger-type injection pump for use in automotive installations is provided not only with plunger rotating means to vary the quantity of fuel injected but also with a novel tappet assembly that includes hydraulically actuated facing nested parts that can be axially separated as well as angularly rotated relative one to the other to vary the height of the plunger from an initial setting in a continuously variable manner to thereby continuously vary the injection timing.
摘要翻译： 用于汽车装置的柱塞型注射泵不仅具有用于改变喷射燃料量的柱塞旋转装置，而且还提供了一种新颖的挺杆组件，其包括液压致动的面向嵌套部件，其可以轴向分离以及角度旋转 彼此相对地以连续可变的方式从初始设定改变柱塞的高度，从而连续地改变喷射正时。
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公开(公告)号：US4924840A
公开(公告)日：1990-05-15
申请号：US253523
申请日：1988-10-05
申请人： Wallace R. Wade
发明人： Wallace R. Wade
CPC分类号： F02D21/08 , F02M26/39 , F02M26/54 , F02M26/63 , F02M26/70 , F02B1/04 , F02D2009/0276 , F02M26/47
摘要： An exhaust gas recirculation (EGR) system and construction is provided in which an EGR flow valve and an air flow valve are mounted on a common shaft or, alternatively, interconnected by stepper motors or electric motors to ensure equal response times for the flow of EGR gases and air flow into the engine combustion chamber. In one embodiment, a secondary EGR valve is provided in the EGR passage to bleed the exhaust back pressures to approximately atmospheric level to equal that of the air being inducted past a main air throttle valve. Finally, an EGR control system is provided for calculating the EGR flow rate as to be able to set the spark timing of the engine according to previously determined mapping data that provides values required for best fuel economy at any EGR rate.
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