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31. 发明授权

US4395979A Pressure limiting hydraulic tappet 失效
标题翻译：限压液压挺杆
公开(公告)号：US4395979A
公开(公告)日：1983-08-02
申请号：US221765
申请日：1980-12-31
申请人： Julius P. Perr
发明人： Julius P. Perr
IPC分类号： F01L1/24 , F01L1/34
CPC分类号： F01L1/2422
摘要： A pressure limiting expandable hydraulic tappet is provided for use in an internal combustion engine to selectively vary timing by altering the effective profile of a camshaft. The tappet expands to extend the drive train between the camshaft and a camshaft operated mechanism by enlarging and filling an internal hydraulic chamber with a noncompressible hydraulic fluid via an inlet port. The fluid is retained in the tappet chamber by a control valve until a predetermined pressure is attained, when the valve control opens to exit the pressurized fluid through the inlet port and maintain said predetermined pressure for the duration of the camshaft stroke. The valve control means is responsive to the hydraulic pressure acting on an area differential within the chamber to overcome a selected bias.
摘要翻译：提供压力限制可膨胀液压挺杆，用于内燃机，以通过改变凸轮轴的有效轮廓来选择性地改变定时。挺杆膨胀以通过经由入口端口扩大和填充具有不可压缩液压流体的内部液压室来在凸轮轴和凸轮轴操作机构之间延伸传动系。流体通过控制阀保持在挺杆室中，直到获得预定压力，当阀门控制打开以通过入口端口离开加压流体并在凸轮轴行程持续期间保持所述预定压力时。阀控制装置响应于作用在腔室内的区域差异的液压，以克服选定的偏压。

32. 再颁专利

USRE30189E Fuel injection system for diesel engines 失效
标题翻译：柴油发动机燃油喷射系统
公开(公告)号：USRE30189E
公开(公告)日：1980-01-15
申请号：US852281
申请日：1977-11-17
申请人： Julius P. Perr
发明人： Julius P. Perr
IPC分类号： F02B3/06 , F02M45/00 , F02M57/02 , F02M59/30
CPC分类号： F02M57/021 , F02M45/00 , F02M57/023 , F02M59/30 , F02B3/06
摘要： A fuel injection system for a diesel engine. An injection rate control device, such as an auxiliary spring, is connected in line with the conventional injection train which operates the injector plunger in synchronism with the rotation of the camshaft. When an auxiliary spring is used as the injection rate control device, the auxiliary spring has a lower spring rate than that of the injection train so that the injector plunger is advanced at a different rate when it is under the control of the auxiliary spring. Means are included for rendering the auxiliary spring ineffective during a portion of the plunger advancement so that the rate of plunger advancement is controlled by the auxiliary spring during the initial part of the advancing stroke, and by the conventional part of the injection train during the balance of the advancing stroke. The auxiliary spring automatically varies ignition timing and injection rate as a function of engine speed and/or load.

33. 发明授权

US4093046A Exhaust braking apparatus 失效
标题翻译：排气制动装置
公开(公告)号：US4093046A
公开(公告)日：1978-06-06
申请号：US755970
申请日：1976-12-30
申请人： Julius P. Perr
发明人： Julius P. Perr
IPC分类号： F02D9/06 , F02D9/14
CPC分类号： F02D9/06
摘要： A modulated exhaust braking apparatus is provided for use on a motor vehicle engine. The apparatus is connected to and forms a part of the engine exhaust system and produces minimum back pressure when the apparatus is in its open position. The apparatus includes a first chamber which separates an exhaust duct into two sections. One section is connected to an inlet for the first chamber and the second section of the duct is connected to an outlet formed in the first chamber. A closure member is adjustably mounted within the first chamber and, when in one position of adjustment, closes off communication within the first chamber between the inlet and outlet thereof. Pneumatic pressure responsive means is adjustably mounted within a second chamber separated from the first chamber. Adjustment of the closure member to a close off position and retention thereof in said close off position is dependent upon regulated pneumatic pressure exerted on the pressure responsive means. Adjustment of the closure member from a close off position to an open position wherein the inlet and outlet are in communication with one another is dependent upon the pressure of the exhaust gas upstream of the first chamber inlet.
摘要翻译：提供一种用于机动车辆发动机的调制排气制动装置。该装置连接到并形成发动机排气系统的一部分，并且当装置处于其打开位置时产生最小的背压。该装置包括将排气管分成两部分的第一室。一个部分连接到第一室的入口，并且管道的第二部分连接到形成在第一室中的出口。闭合构件可调节地安装在第一室内，并且当处于一个调整位置时，封闭第一室内的入口和出口之间的连通。气动压力响应装置可调节地安装在与第一室分离的第二室中。将关闭构件调节到关闭位置并将其保持在所述关闭位置取决于施加在压力响应装置上的调节的气动压力。将关闭构件从关闭位置调整到其中入口和出口彼此连通的打开位置取决于第一室入口上游的排气的压力。

34. 发明授权

US3965875A Fuel injection system for diesel engines 失效
标题翻译：柴油发动机燃油喷射系统
公开(公告)号：US3965875A
公开(公告)日：1976-06-29
申请号：US375350
申请日：1973-07-02
申请人： Julius P. Perr
发明人： Julius P. Perr
IPC分类号： F02B3/06 , F02M45/00 , F02M57/02 , F02M39/00
CPC分类号： F02M45/00 , F02M57/021 , F02M57/023 , F02B3/06
摘要： A fuel injection system for a diesel engine. An injection rate control device, such as an auxiliary spring, is connected in line with the conventional injection train which operates the injector plunger in synchronism with the rotation of the camshaft. When an auxiliary spring is used as the injection rate control device, the auxiliary spring has a lower spring rate than that of the injection train so that the injector plunger is advanced at a different rate when it is under the control of the auxiliary spring. Means are included for rendering the auxiliary spring ineffective during a portion of the plunger advancement so that the rate of plunger advancement is controlled by the auxiliary spring during the initial part of the advancing stroke, and by the conventional part of the injection train during the balance of the advancing stroke. The auxiliary spring automatically varies ignition timing and injection rate as a function of engine speed and/or load.
摘要翻译：一种用于柴油发动机的燃料喷射系统。喷射速率控制装置，例如辅助弹簧，与常规的注射系统连接，该喷射系统与凸轮轴的旋转同步地操作喷射器柱塞。当辅助弹簧用作喷射速率控制装置时，辅助弹簧具有比喷射系统更低的弹簧速率，使得当喷射器柱塞在辅助弹簧的控制下时以不同的速度前进。包括用于使辅助弹簧在柱塞前进的一部分期间无效的装置，使得在前进行程的初始部分期间由辅助弹簧控制柱塞前进速率，并且在平衡期间通过喷射列车的常规部分的中风。辅助弹簧根据发动机转速和/或负载自动改变点火正时和喷射速率。

35. 发明授权

US5419492A Force balanced electronically controlled fuel injector 失效
标题翻译：力平衡电子控制燃油喷射器
公开(公告)号：US5419492A
公开(公告)日：1995-05-30
申请号：US208363
申请日：1994-03-10
申请人： Gary L. Gant , George L. Muntean , Julius P. Perr , O. Eddie Sturman , Dennis A. Wilber , Charles R. Kelso
发明人： Gary L. Gant , George L. Muntean , Julius P. Perr , O. Eddie Sturman , Dennis A. Wilber , Charles R. Kelso
IPC分类号： F02M45/08 , F02M51/06 , F02M57/02 , F02M59/36 , F02M47/02 , F02M45/10
CPC分类号： F02M59/366 , F02M45/08 , F02M51/0621 , F02M51/0635 , F02M51/0657 , F02M51/0664 , F02M51/0675 , F02M51/0682 , F02M57/02
摘要： A unit fuel injector is provided comprising an injector body containing a pumping chamber for receiving fuel at a low pressure level from a fuel supply passage for subsequent discharge at a high pressure level, a discharge orifice and a transfer passage communicating with the pumping chamber and the discharge orifice. A valve element is provided for movement between (i) an advanced position wherein the supply passage communicates with the pumping chamber through the transfer passage and (ii) a retracted position wherein communication between the supply passage and the pumping chamber is blocked to allow fuel to flow from the pumping chamber through the transfer passage and out the discharge orifice. The valve element includes a control valve integrally formed with a tip valve, and a force balancing element for tending to balance the forces acting on the valve element by reducing the force tending to bias the valve element toward its second position closing the discharge orifice, when the pressure within the pumping chamber increases to the high pressure level.
摘要翻译：提供了一种单元燃料喷射器，其包括喷射器主体，该喷射器主体包括用于从燃料供应通道接收低压水平的燃料的高压水平的后续排放的排气室，排出孔和与泵送室连通的输送通道排放孔。提供阀元件，用于在（i）前进位置之间运动，其中供应通道通过传送通道与泵送室连通，以及（ii）缩回位置，其中供应通道和泵送室之间的连通被阻止以允许燃料从泵送室通过传送通道流出排出孔。阀元件包括与尖端阀一体地形成的控制阀，以及力平衡元件，用于通过减小倾向于将阀元件偏压到其关闭排出孔的第二位置的力来平衡作用在阀元件上的力，泵送室内的压力增加到高压水平。

36. 发明授权

US5329908A Compressed natural gas injection system for gaseous fueled engines 失效
标题翻译：用于气体燃料发动机的压缩天然气注射系统
公开(公告)号：US5329908A
公开(公告)日：1994-07-19
申请号：US73062
申请日：1993-06-08
申请人： Yul J. Tarr , Julius P. Perr
发明人： Yul J. Tarr , Julius P. Perr
IPC分类号： F02B1/04 , F02B3/06 , F02B23/06 , F02B43/00 , F02B75/12 , F02D19/02 , F02M21/02 , F02M51/06 , F02M61/08 , F02M51/00
CPC分类号： F02M21/0269 , F02B23/0654 , F02B23/0696 , F02B43/00 , F02D19/02 , F02M21/0245 , F02M21/0254 , F02M21/0275 , F02M51/0653 , F02M61/08 , F02B1/04 , F02B2075/125 , F02B3/06 , F02M21/0224 , Y02T10/123 , Y02T10/125 , Y02T10/32
摘要： In accordance with preferred embodiments, a fuel injector has a gas accumulator of a volume that is at least ten times the maximum amount of fuel which would have to be injectable thereby, and a solenoid operated poppet valve with an end face that opens into the combustion cylinder and is shaped to deflect a portion of the fuel injected into direct contact with the ignition plug. In a first embodiment, using a variable fuel supply, an electronic control unit (ECU) controls the injection timing to inject the compressed gas into the cylinders as each's piston nears its top dead center (TDC) position to obtain diesel engine-like efficiencies (.eta.=45%) so long as the compressed gas supply pressure is sufficiently high (at least approximately 2,000 psi), and when the compressed gas supply pressure becomes too low for high efficiency operation (i.e., below 2,000 psi), the ECU changes the manner of operation so that fuel is injected into the engine when piston is near its bottom dead center position (BDC) so that it can be premixed with air prior to ignition to produce gasoline engine-like efficiencies (.eta.=35%).
摘要翻译：根据优选实施例，燃料喷射器具有容积为至少必须由其注入的最大燃料量的十倍的气体蓄积器，以及具有通向燃烧的端面的电磁操作提升阀并且成形为使喷射的燃料的一部分与火花塞直接接触。在第一实施例中，使用可变燃料供应时，电子控制单元（ECU）控制喷射正时以在每个活塞靠近其上止点（TDC）位置时将压缩气体喷射到气缸中，以获得柴油发动机效率（ eta = 45％），只要压缩气体供应压力足够高（至少约2,000psi），并且当压缩气体供应压力变得太低以达到高效率操作（即，低于2,000psi）时，ECU改变操作方式使得当活塞接近其下死点位置（BDC）时将燃料喷射到发动机中，使得其可以在点燃之前与空气预混合以产生类似汽油发动机的效率（eta = 35％）。

37. 发明授权

US5029568A Injection rate control injector 失效
标题翻译：注射速率控制注射器
公开(公告)号：US5029568A
公开(公告)日：1991-07-09
申请号：US463304
申请日：1990-01-10
申请人： Julius P. Perr
发明人： Julius P. Perr
IPC分类号： F02M45/12 , F02M57/02
CPC分类号： F02M45/12 , F02M57/021 , F02B2275/14 , Y02T10/123
摘要： A unit fuel injector for a fuel injection system for an internal combustion engine is described that is reciprocably driven from a camshaft by a drive train, and the unit injector includes a device for controlling the rate of fuel injection into an engine cylinder. The rate control device operates to divert or bleed off a quantity of fuel from the main metering chamber of an open-nozzle type fuel injector during an initial phase of injection, and the diverted fuel is returned to the metering chamber at a later phase in the injector operation. The rate control device includes an auxiliary metering chamber which receives the diverted fuel via an auxiliary passageway. An auxiliary plunger is mounted within the auxiliary metering chamber. A biasing device such as a helical spring or a fluid pressure spring, controls the inward and outward movement of the auxiliary plunger. The biasing device causes the auxiliary plunger to return the diverted fuel to the metering chamber when the pressure of the auxiliary plunger biasing device exceeds the fluid pressure within the metering chamber. In one embodiment, the biasing device is adjustable by controlling a control pressure of a fluid pressure spring.
摘要翻译：描述了用于内燃机的燃料喷射系统的单元燃料喷射器，其通过传动系从凸轮轴往复运动，并且单元喷射器包括用于控制燃料喷射到发动机气缸中的速率的装置。速率控制装置在初始注入阶段期间操作以从开口喷嘴式燃料喷射器的主计量室转移或排出一定数量的燃料，并且转向燃料在后续阶段返回到计量室注射器操作。速率控制装置包括辅助计量室，其经由辅助通道接收转向燃料。辅助活塞安装在辅助计量室内。诸如螺旋弹簧或流体压力弹簧的偏置装置控制辅助柱塞的向内和向外运动。当辅助柱塞偏置装置的压力超过计量室内的流体压力时，偏置装置使辅助柱塞将转向的燃料返回到计量室。在一个实施例中，偏压装置可通过控制流体压力弹簧的控制压力来调节。

38. 发明授权

US5002022A Valve control system with a variable timing hydraulic link 失效
标题翻译：具有可变定时液压连杆的阀门控制系统
公开(公告)号：US5002022A
公开(公告)日：1991-03-26
申请号：US400705
申请日：1989-08-30
申请人： Julius P. Perr
发明人： Julius P. Perr
IPC分类号： F01L9/02 , F02B3/06
CPC分类号： F01L9/025 , F01L1/146 , F01L1/08 , F01L1/181 , F01L2001/054 , F02B3/06
摘要： A valve tappet and control system is provided including expansible and collapsible hydraulic link; wherein the control system causes expansion of the hydraulic link and determines the timing of the collapse and thus the closing of an intake valve of an internal combustion engine. The timing is variable depending on engine operating conditions, such as output power and turbo charger boost pressure. In one embodiment, a rotary valve and fluid gating device is used to connect a pressure line used to expand the hydraulic link to a dump line at one instance during each cam shaft rotation to provide the early closing of the valve. In a second embodiment, a rotary cam follower with an oblique surface is used, wherein the orientations of the oblique surface is the determinative feature that is controlled to change early closing time as well as a delayed opening. A third embodiment utilizes a separate drain line from the hydraulic link that is opened by an electromagnetic solenoid controlled by a distributor system with a time variable adjustment.
摘要翻译：提供了一种阀挺杆和控制系统，包括可膨胀和可折叠的液压连杆; 其中所述控制系统引起所述液压连杆的膨胀并且确定所述塌陷的正时以及由此关闭内燃机的进气门。时间可根据发动机工作条件而变化，例如输出功率和涡轮增压器增压压力。在一个实施例中，旋转阀和流体门控装置用于在每个凸轮轴旋转期间将用于将液压连杆膨胀的压力线连接到倾卸管线以提供阀的早期关闭。在第二实施例中，使用具有倾斜表面的旋转凸轮随动件，其中倾斜表面的取向是被控制以改变早期关闭时间以及延迟打开的决定性特征。第三实施例利用来自液压连杆的单独的排水管线，其由具有时间可变调节的分配器系统控制的电磁线圈打开。

39. 发明授权

US4962743A Injection rate control cam 失效
标题翻译：喷射率控制凸轮
公开(公告)号：US4962743A
公开(公告)日：1990-10-16
申请号：US362266
申请日：1989-06-06
申请人： Julius P. Perr , Eric Liang , Robert C. Yu , Amarjit S. Ghuman
发明人： Julius P. Perr , Eric Liang , Robert C. Yu , Amarjit S. Ghuman
IPC分类号： F02M57/02 , F02M59/10
CPC分类号： F02M57/023 , F02M57/021 , F02M59/102
摘要： A cam for controlling the injection rate of fuel in a fuel injection system having a four part cam profile is disclosed. The first 120.degree. is the plunger advancement segment. The next 80.degree. is the advanced dwell segment. The next 100.degree. is the plunger retraction segment and the last 60.degree. is the retracted dwell segment. The plunger advancement segment is divided into three subsegments: pre-injection stroke, injection stroke, and overtravel stroke. The pre-injection subsegment achieves minimum velocity and acceleration at the start of injection. In the injection subsegment, the cam follower acceleration is achieved as rapidly as can Hertz stress permits to increase the injection pressure and to achieve the maximum injection rate. The overtravel subsegment achieves a sharp and clean end of injection. Preferably, this cam causes injection of less than 20 mm.sup.3 of fuel per stroke during the first ten cam angle degrees of cam rotation. The injection pressure and the amount of injection are reduced at the beginning of injection, timing is advanced, and optimal control over the rate of fuel injection is provided.
摘要翻译：公开了一种用于控制具有四部分凸轮轮廓的燃料喷射系统中的燃料喷射速率的凸轮。第一个120度是柱塞前进段。接下来的80度是先进的停留段。接下来的100°是柱塞回缩段，最后60°是缩回的停留段。柱塞前进段分为三个子部分：预注射冲程，注射冲程和超程冲程。预注射子段在注射开始时达到最小速度和加速度。在喷射子段中，凸轮从动件的加速度能够像赫兹应力允许的那样快速地实现，以增加喷射压力并达到最大喷射速率。超行程段实现了清晰的清洁注射结束。优选地，该凸轮在凸轮旋转的第一十个凸轮角度期间引起每冲程少于20mm 3的燃料喷射。在注射开始时注射压力和注射量减少，提前时间，并提供对燃料喷射速率的最佳控制。

40. 发明授权

US4249499A Timing mechanism for a fuel supply system 失效
标题翻译：燃油供应系统的定时机制
公开(公告)号：US4249499A
公开(公告)日：1981-02-10
申请号：US113739
申请日：1980-01-21
申请人： Julius P. Perr
发明人： Julius P. Perr
IPC分类号： F02M57/02 , F02M59/30 , F02M39/02 , F02M47/02 , F04B49/08
CPC分类号： F02M57/024 , F02M57/021 , F02M57/023 , F02M59/30
摘要： This disclosure deals with a mechanism for adjusting the timing of initiation of injection by a fuel injector of an internal combustion engine. The mechanism includes a piston connected to be moved by a drive for the injector, and another piston which is connected to move the plunger of the injector. A timing fluid supply is provided for feeding a timing fluid into a timing chamber formed between the two pistons under selected operating conditions, the timing fluid forming a hydraulic link between the two pistons. The mechanism further includes pressure relief means for releasing a portion of the timing fluid after the termination of injection, the relief means comprising a pressure responsive mechanism.
摘要翻译：本公开涉及一种用于调节内燃机的燃料喷射器的喷射开始时间的机构。该机构包括连接以由用于喷射器的驱动器移动的活塞，以及连接以移动喷射器的柱塞的另一活塞。提供定时流体供应装置，用于在选择的操作条件下将定时流体供给到在两个活塞之间形成的定时室中，定时流体在两个活塞之间形成液压连杆。该机构还包括用于在注射终止之后释放定时流体的一部分的压力释放装置，该释放装置包括压力响应机构。

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