公开(公告)号：WO1993008997A1

公开(公告)日：1993-05-13

申请号：PCT/US1991007953

申请日：1991-10-28

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  GRINBERG, Eugene

IPC: B60H01/00

CPC classification number: B60H1/00378

Abstract: In the operation of construction vehicles, noise within the cab of the vehicle has become an increasing concern. The primary source of noise within the cab is created by the operation of the heating, ventilating and air conditioning system that controls the environment of the cab. It is common practice, in present day systems, to utilize duct work within the system that inherently creates a relatively large restriction for the air that flows therethrough. As a result of the air flow restrictions, the blower fans must operate at high speed or alternatively, multiple blowers must be used to provide adequate air flow within the cab. All of these factors combine to create a large source of noise that an operator must endure. The air circulatory system (32) of the present invention utilizes a means (46) for communicating ambient air into the cab and a means (73) to introduce air that is circulating within the cab into the system through passageways (48, 50, 70, 34) that create very little restriction for the air flowing therethrough. A means (76) is utilized to discharge to air back into the cab (10) that also creates very little restriction for the air flow. These results in a very small drop in air pressure between the air being introduced into the blower assembly (40) and the air exiting the blower assembly (40). Subsequently, the requirements of the blower assembly (40) and the noise created by its operation kept at a minimum.

Abstract translation: 在施工车辆的运行中，车辆驾驶室内的噪音已经成为越来越多的问题。 驾驶室内噪音的主要来源是控制驾驶室环境的加热，通风和空调系统的运行。 在现今的系统中，通常的做法是利用系统内的管道工作，固有地对流过其中的空气产生相当大的限制。 由于气流限制，鼓风机必须高速运转，或者，必须使用多个鼓风机，以在驾驶室内提供足够的空气流量。 所有这些因素结合起来，创造了操作者必须忍受的大量噪音源。 本发明的空气循环系统（32）利用一种用于将环境空气传送到驾驶室中的装置（46）和一个装置（73），用于将驾驶室内循环的空气通过通道（48,50,70） ，34），其对于流过其中的空气产生非常小的限制。 一种装置（76）用于将空气排放回到驾驶室（10）中，这也为空气流量创造了很少的限制。 这些导致在被引入鼓风机组件（40）的空气和离开鼓风机组件（40）的空气之间的空气压力的非常小的下降。 随后，鼓风机组件（40）的要求和由其操作产生的噪音保持在最小。

公开(公告)号：WO1993007381A1

公开(公告)日：1993-04-15

申请号：PCT/US1991009682

申请日：1991-12-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  CAMPION, Robert, M.

IPC: F02M57/02

CPC classification number: F02D41/062 ,  F02B2075/1832 ,  F02B2275/14 ,  F02D41/3836 ,  F02F7/006 ,  F02M57/025 ,  F02M59/48 ,  F02M61/168 ,  F02M2200/304 ,  Y02T10/123

Abstract: Methods of starting a hydraulically-actuated electronically-controlled fuel injection system (10) are disclosed. One method comprises the steps of pressurizing actuating fluid used to actuate a unit injector (18) and actuating an electrical actuator assembly (36) of the unit injector (18) to cause fuel injection only when the pressure of the actuating fluid is at least equal to a selected minimum level. This method of the present invention ensures that the unit injector (18) does not diminish the pressure of the actuating fluid until the pressure has reached a selected minimum level required to effect fuel injection. This method allows the pumping capacity of the high pressure actuating fluid pump (332) to be minimized while ensuring quick starting of an engine (12) by the fuel system (10).

公开(公告)号：WO1993007380A1

公开(公告)日：1993-04-15

申请号：PCT/US1991009681

申请日：1991-12-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  GLASSEY, Stephen, F.

IPC: F02M57/02

CPC classification number: F02M57/025 ,  F02B3/06 ,  F02B2075/1832 ,  F02B2275/14 ,  F02B2275/40 ,  F02F7/006 ,  F02M57/026 ,  F02M61/168 ,  F02M63/0003 ,  F02M63/0015 ,  F02M63/004 ,  F02M63/0225 ,  F02M2200/304 ,  Y02T10/123 ,  Y02T10/125

Abstract: A hydraulically-actuated electronically-controlled unit injector fuel system (10) and method of operation is disclosed. The fuel system (10) comprises at least one hydraulically-actuated electronically-controlled unit injector (18) and apparatus (20) for supplying hydraulically actuating fluid to the injector (18). The fuel system (10) also includes apparatus for detecting the pressure of the hydraulically actuating fluid supplied to the injector (18) and for generating a pressure indicative signal (S6) indicative of the pressure detected. The fuel system (10) further includes apparatus (24) for controlling the pressure of the hydraulically actuating fluid supplied to the injector (18) and for correcting the pressure amount based on the pressure indicative signal (S6). The present invention provides closed-loop control of actuating fluid pressure which helps ensure that a desired variable pressure setting is achieved and maintained for as long as needed. Accurate control of the actuating fluid pressure helps ensure accurate control of fuel injection timing and quantity.

公开(公告)号：WO1993007378A1

公开(公告)日：1993-04-15

申请号：PCT/US1991009679

申请日：1991-12-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  AUSMAN, Thomas, G. ,  LONGMAN, Douglas, E. ,  STOCKNER, Alan, R.

IPC: F02M57/02

CPC classification number: F02D41/062 ,  F02B2075/1832 ,  F02B2275/14 ,  F02D41/3809 ,  F02D2200/0606 ,  F02F7/006 ,  F02M57/025 ,  F02M63/00 ,  Y02T10/123

Abstract: In a hydraulically-actuated electronically-controlled unit injector, the viscosity of the actuating fluid used to actuate the unit injector varies with ambient temperature and affects the magnitude of pressure drops in the actuating fluid circuit. Such variations in viscosity affect the magnitude of the fuel delivery command pulsewidth and/or actuating fluid pressure required for engine startup versus that required for normal engine operation. The present invention provides an improved hydraulically-actuated electronically-controlled unit injector (18) and methods of operation which compensate for variations in the viscosity of the actuating fluid used to hydraulically actuate a piston (88). The stroke of the piston (88) is controlled electronically and/or mechanically in order to achieve an appropriate amount of fuel injection.

公开(公告)号：WO1993001399A1

公开(公告)日：1993-01-21

申请号：PCT/US1991007451

申请日：1991-10-10

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  WEBER, J., Roger

IPC: F01L09/02

CPC classification number: F01L9/02

Abstract: A recuperative engine valve system (10) for an internal combustion engine. The system (10) includes an engine valve (12) having a plunger surface (16), a first means (20) for biasing the engine valve (12) towards its closed position, a source of relatively low pressure fluid (22), a source of relatively high pressure fluid (24), and a second means (28) for selectively communicating fluid between the plunger surface (16) and one of the low pressure fluid source (22) and the high pressure fluid source (24). The timing of the selective communication of low pressure fluid and high pressure fluid to the plunger surface (16) during valve displacement is controlled so as to preserve and recuperate energy.

Abstract translation: 一种用于内燃机的换热发动机气门系统（10）。 系统（10）包括具有柱塞表面（16）的发动机气门（12），用于将发动机气门（12）偏压到其关闭位置的第一装置（20），相对低压流体源（22）， 相对高压流体源（24）和用于选择性地将柱塞表面（16）与低压流体源（22）和高压流体源（24）之一连通的流体的第二装置（28）。 控制在阀移动期间将低压流体和高压流体选择性地连通到柱塞表面（16）的时间，以便保持和恢复能量。

公开(公告)号：WO1993000530A1

公开(公告)日：1993-01-07

申请号：PCT/US1992004364

申请日：1992-05-26

Applicant: CATERPILLAR INC. ,  BAKER, Steven, R. ,  SMITH, Michael, J. ,  BALLHEIMER, Benny

Inventor： CATERPILLAR INC.

IPC: F16H35/06

CPC classification number: F16H57/022 ,  F16H57/12 ,  F16H2057/0224

Abstract: Adjustment capabilities are useful in gearing mechanisms so that backlash settings between gears may be changed to accomodate for normal operation, wear, or maintenance disturbances. The subject backlash adjustment mechanism allows for adjustment of center distances between an adjustable idler gear (23) and a camshaft gear (24), while providing a geometric alignment (47, 82) relationship to maintain a substantially fixed center distance between the adjustable idler gear (23) and another mating gear (22). The subject backlash adjustment mechanism (26) has the adjustable idler gear (23) rotatably mounted on an idler gear mounting (31, 58) having a slotted hole (33, 62), with the idler gear mounting (31, 58) being releasably connected to a cylinder block (11). When adjustment is required, the idler gear mounting (31, 58) can be pivoted around a pivot (28, 70) to the extent permitted by the slotted hole (33, 62), thereby changing the position of the adjustable idler gear (23) relative to the position of the camshaft gear (24). The pivot (28, 70) is fixedly connected to the cylinder block (11) between the centerlines (49, 51) of the idler gear (23) and the mating gear (22) and being positioned substantially on a line (B) intersecting the centerlines (49, 51) of the idler gear (23) and the mating gear (22).

Abstract translation: 调整功能在齿轮传动机构中是有用的，因此齿轮之间的齿隙设定可能会改变以适应正常的操作，磨损或维护干扰。 主体间隙调整机构允许调节可调节惰轮（23）和凸轮轴齿轮（24）之间的中心距离，同时提供几何对准（47,82）关系，以保持可调节惰轮 （23）和另一个配合齿轮（22）。 主体间隙调节机构26具有可旋转地安装在具有开槽孔（33,62）的惰轮安装件（31,58）上的可调节惰轮（23），空转齿轮安装件（31,58）可释放 连接到气缸体（11）。 当需要调节时，空转齿轮安装（31,58）能够围绕枢轴（28,70）枢转到由开槽孔（33,62）允许的程度，从而改变可调惰轮（23）的位置 ）相对于凸轮轴齿轮（24）的位置。 枢轴（28,70）在空转齿轮（23）的中心线（49,51）和匹配齿轮（22）之间固定地连接到气缸体（11），并且基本上位于相交的线（B）上 空转齿轮（23）的中心线（49,51）和配合齿轮（22）。

公开(公告)号：WO1992021876A1

公开(公告)日：1992-12-10

申请号：PCT/US1992004515

申请日：1992-05-27

Applicant: CATERPILLAR INC. ,  McCOY, Steven, Ray ,  SCHEEL, Horst

Inventor： CATERPILLAR INC.

IPC: F02P17/00

CPC classification number: F02P17/12 ,  F02P3/0861

Abstract: An apparatus (8) is provided for monitoring ignition in individual cylinders of a multicylinder engine of the type having an ignition system (10) which includes a separate transformer (24a-f) for each cylinder. Each transformer (24a-f) has primary and secondary coils (26a-f, 28a-f). The secondary coil (28a-f) being electrically connected in series with a spark gap (22a-f) in an associated one of the cylinders. The ignition system (10) further includes selector switches (34a-f) being adapted to receive cylinder select signals and responsively connecting respective transformer primary coils (26a-f). The current flows through the primary coil (26a-f) resulting in a voltage potential across an associated spark gap (22a-f) which normally increases to a magnitude sufficient to cause a spark across the spark gap (22a-f). A first circuit (98) receives the cylinder select signals, senses a time delay between the reception of a cylinder select signal and sparking in a respective cylinder and responsively produces a delay signal indicat ve of the sensed time delay. A diagnostic controller (124) receives the delay signal, compares the delay signal to a plurality of preselected thresholds and responsively produces a status signal indicating the status of ignition in a respective cylinder.

Abstract translation: 提供了一种用于监测具有点火系统（10）的多缸发动机的各个气缸中的点火的装置（8），该点火系统（10）包括用于每个气缸的单独的变压器（24a-f）。 每个变压器（24a-f）具有初级和次级线圈（26a-f，28a-f）。 次级线圈（28a-f）与相关联的一个气缸中的火花隙（22a-f）串联电连接。 点火系统（10）还包括适于接收气缸选择信号并且响应地连接相应的变压器初级线圈（26a-f）的选择器开关（34a-f）。 电流流过初级线圈（26a-f），导致相关的火花隙（22a-f）之间的电压电势通常增加到足以引起火花隙（22a-f）上的火花的量级。 第一电路（98）接收气缸选择信号，感测在气缸选择信号的接收和相应气缸中的火花之间的时间延迟，并且响应地产生所感测的时间延迟的延迟信号。 诊断控制器（124）接收延迟信号，将延迟信号与多个预选阈值进行比较，并且响应地产生指示相应气缸中的点火状态的状态信号。

公开(公告)号：WO1992017363A1

公开(公告)日：1992-10-15

申请号：PCT/US1991002063

申请日：1991-03-29

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  LARSON, Michael, Paul ,  LONN, Alan, Harold

IPC: B62D55/08

CPC classification number: B62D55/0847

Abstract: A track guiding apparatus (10) for guiding the track links (22) of a moving undercarriage system (12) of a track-type vehicle having a track roller frame (18) and a plurality of track rollers (20) includes a support bracket assembly (14) secured to the roller frame (18) and a plurality of guide bars (16) secured to the support bracket assembly (14). Each of the guide bars (16) has a contact surface (50, 52) adapted to contact a hardened rail portion (56) of the track links (22) when the links (22) are moved laterally. The track guiding apparatus (10) prevents de-railing of the track links (22) from the track rollers (20) due to irregular ground conditions or when foreign material becomes lodged between the rollers (20) and the links (22).

Abstract translation: 一种用于引导具有履带滚轮架（18）和多个履带轮（20）的轨道式车辆的移动的起落架系统（12）的轨道连杆（22）的轨道引导装置（10）包括支架 固定到滚子框架（18）的组件（14）和固定到支撑支架组件（14）的多个导杆（16）。 每个导杆（16）具有接触表面（50,52），当接头（22）横向移动时，接触表面（50,52）适于接触轨道连杆（22）的硬化轨道部分（56）。 轨道引导装置（10）防止轨道连杆（22）由于不规则的接地条件或当异物粘在辊（20）和链节（22）之间时从轨道滚子（20）脱轨。

公开(公告)号：WO1992015730A1

公开(公告)日：1992-09-17

申请号：PCT/US1991001581

申请日：1991-03-11

Applicant: CATERPILLAR INC. ,  GRASSI, John, Anthony ,  GILBERT, William, Humphrey ,  GEPHART, Harry, Nelson ,  BIEHLER, Deane, Irving

Inventor： CATERPILLAR INC.

IPC: C25D13/12

CPC classification number: C25D13/00 ,  C25D13/12 ,  F02F7/00 ,  F02F7/0087

Abstract: A method for painting an engine by the electrocoating process includes coating (10) preselected components of the engine (10) with an electrically nonconductive ceramic material prior to assembly (12), and pressurizing the engine (14) prior to immersion in an electrically charged paint bath (18). The method is particularly useful for avoiding paint deposition on preselected components, such as the hot exhaust elements, of an engine. A thermal insulating and corrosion resistant coating for the preselected components is thus provided, and undesirable paint burnoff during subsequent engine operation is avoided.

Abstract translation: 通过电涂工艺对发动机进行喷涂的方法包括在组装（12）之前用导电陶瓷材料涂覆（10）预定的发动机部件（12），并且在浸入电荷之前对发动机（14）加压 油漆浴（18）。 该方法对于避免在发动机的预选组件（例如热排气元件）上的油漆沉积特别有用。 因此提供了用于预选部件的绝热和耐腐蚀涂层，并且避免了在随后的发动机操作期间不期望的油漆烧坏。

公开(公告)号：WO1992011447A1

公开(公告)日：1992-07-09

申请号：PCT/US1991007453

申请日：1991-10-10

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  SMITH, Aaron, L. ,  FELDMAN, Mark, E.

IPC: F02B37/00

CPC classification number: F02B37/164 ,  F01N3/025 ,  F01N2240/02 ,  F02B3/06 ,  Y02T10/144

Abstract: Heretofore, auxiliary air was directed to a particulate filter assembly of a supercharged diesel engine for proper regeneration thereof by a relatively large auxiliary air compressor, or alternatively from a take-off duct communicating with the inlet manifold of the diesel engine. The former solution often requires a governed compressor for improved efficiency and is expensive, and the latter does not provide satisfactory regeneration throughout the full operating range of the engine. These problems are overcome by providing an oxygen supply system (68) for a diesel engine (10) having an inlet manifold (12), an exhaust manifold (14), a supercharger (16), a first passage device (22) for communicating pressurized air from the supercharger (16) to the inlet manifold (12), a second passage device (31) including a particulate filter assembly (34) for communicating exhaust gas from the supercharger (16) to the atmosphere, and a third passage device (70) including an auxiliary pump mechanism (72) having a relatively small air pump (78) that provides sufficient oxygen solely from the first passage device (22) to assure proper regeneration under all normal engine operating conditions.