公开(公告)号：WO1993012332A1

公开(公告)日：1993-06-24

申请号：PCT/US1991009322

申请日：1991-12-19

Applicant: CATERPILLAR INC. ,  BROWN, William, Lee, Jr. ,  RUTAN, William, Kent ,  SCHRICKER, David, Richard

Inventor： CATERPILLAR INC.

IPC: F02D41/22

CPC classification number: C01B25/163 ,  C08K3/32 ,  F02D41/22 ,  F02D2041/288 ,  F02D2200/0402 ,  G01M13/00 ,  Y02T10/40 ,  C08L57/08

Abstract: In a method for diagnosing an engine (102) using computer based models, a first set of parameters of the engine (102) is sensed and used to determine a modeled value of a first operating characteristic. A second set of parameters of the engine (102) is sensed and used to determine a modeled value of a second operating characteristic. The modeled values are compared to actual values and the engine is responsively diagnosed.

公开(公告)号：WO1993011366A1

公开(公告)日：1993-06-10

申请号：PCT/US1991008885

申请日：1991-12-02

Applicant: CATERPILLAR INC. ,  CIESZKIEWICZ, Anthony, Floyd ,  CLEMENTS, Thomas, Edwin

Inventor： CATERPILLAR INC.

IPC: F16C03/10

CPC classification number: B21K1/08 ,  F16C3/10 ,  F16C2300/02 ,  Y10T29/49286 ,  Y10T29/49826

Abstract: A crankshaft is manufactured by providing a plurality of initially completely discrete crankshaft segments electron-beam welded together. Tubular bearing journals (12, 14) having an inclined surface (30) are positioned in a groove (35, 40) of a counterweight web (16) and a groove (50) of a crankshaft end (18). The discrete segments (12, 14, 16, 18) are positioned and maintained in position by the interaction of inclined surfaces (30) and grooves (35, 40, 50) for electron-beam welding.

Abstract translation: 通过提供多个初始完全离散的曲轴段电子束焊接在一起来制造曲轴。 具有倾斜表面（30）的管状轴承轴颈（12,14）定位在配重腹板（16）的凹槽（35,40）和曲轴端部（18）的凹槽（50）中。 离散区段（12,14,16,18）通过用于电子束焊接的倾斜表面（30）和凹槽（35,40,50）的相互作用来定位和保持在适当的位置。

公开(公告)号：WO1993011353A1

公开(公告)日：1993-06-10

申请号：PCT/US1991008887

申请日：1991-11-29

Applicant: CATERPILLAR INC. ,  BERLINGER, Willibald, Gustav

Inventor： CATERPILLAR INC.

IPC: F02F03/00

CPC classification number: F16J1/16 ,  F02B23/0696 ,  F02F3/0023 ,  F02F3/0069 ,  F02F3/22 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/125

Abstract: The design and construction of past piston assemblies having a wrist pin bolted to a connecting rod have excessive weight and structural components, and requires more complex machining techniques and tooling. The present invention overcomes these problems by providing a piston assembly (30) with a wrist pin (36) attached to a piston member (32). Thus, the length of the leg members (80) are short and do not require a portion surrounding the wrist pin (36). The results being reduced piston member (32) and piston assembly (30) weight and lower inertia, a simplified forging or casting process, a more easily machinable cavity (86) within the piston member (32) and a higher quality piston assembly (30).

Abstract translation: 过去的活塞组件的设计和结构，其具有螺栓连接到连杆上的腕销具有过大的重量和结构部件，并且需要更复杂的加工技术和工具。 本发明通过提供具有附接到活塞构件（32）的腕销（36）的活塞组件（30）来克服这些问题。 因此，腿部件（80）的长度较短，并且不需要围绕腕销（36）的部分。 结果是活塞构件（32）和活塞组件（30）的重量和较低的惯性减小，简化的锻造或铸造工艺，活塞构件（32）内更容易加工的空腔（86）和更高质量的活塞组件（30） ）。

公开(公告)号：WO1993009416A1

公开(公告)日：1993-05-13

申请号：PCT/US1991007954

申请日：1991-10-28

Applicant: CATERPILLAR INC. ,  BOGGS, Brian, Lee ,  GIPP, Gregory, Hubbel ,  GUSTIN, Ronald, Ray

Inventor： CATERPILLAR INC.

IPC: G01K01/08

CPC classification number: G01K1/08

Abstract: A temperature sensing apparatus (10) is provided which includes a temperature sensitive device (12) having an electrical resistivity which varies with temperature. A conditioning circuit (16) is electrically connected to the temperature sensitive device (12) and adapted to measure a resistance across the device and produce an electrical signal which is insensitive to external resistive loading and which is responsive to the sensed resistance. The apparatus (10) also includes a non-metallic, liquid resistant and thermally conductive housing (18) encapsulating the temperature sensitive device (12) and the conditioning circuit (16). At least one electrical conductor (38) is connected to the conditioning circuit (16) and adapted to transmit the signal output from the conditioning circuit (16). The conductor (38) extends through the housing (18) for electrical connection to circuitry external to the housing (18).

Abstract translation: 提供一种温度感测装置（10），其包括具有随温度变化的电阻率的温度敏感装置（12）。 调理电路（16）电连接到温度敏感设备（12）并且适于测量跨设备的电阻并且产生对外部电阻负载不敏感并且响应于感测电阻的电信号。 装置（10）还包括封装温度敏感装置（12）和调节电路（16）的非金属的，耐液体的和导热的壳体（18）。 至少一个电导体（38）连接到调理电路（16）并且适于传输从调理电路（16）输出的信号。 导体（38）延伸穿过壳体（18），用于电连接到壳体（18）外部的电路。

公开(公告)号：WO1993008400A1

公开(公告)日：1993-04-29

申请号：PCT/US1991009110

申请日：1991-12-10

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  LAWRENCE, Keith, E. ,  SHYU, Tsu, P.

IPC: F02M51/06

CPC classification number: F02M59/105 ,  F01L9/04 ,  F02M59/468

Abstract: An arrangement in a single housing (10) positioned over a piston cylinder of an engine of independently operable "on-off" valve actuators (60), "on-off" valves (62), hydraulic fluid headers (44) and rails (50), engine intake (28) and exhaust valves (30), and unit fuel injector (24).

Abstract translation: 位于发动机的活塞气缸上的独立壳体（10）中的布置，其独立地可操作的“开关”阀致动器（60），“开关”阀（62），液压流体集管（44）和轨道 50），发动机进气（28）和排气门（30）以及单元燃料喷射器（24）。

公开(公告)号：WO1993008382A1

公开(公告)日：1993-04-29

申请号：PCT/US1991009464

申请日：1991-12-16

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  LANE, William, H. ,  PETERSON, Randal, N.

IPC: F01N03/02

CPC classification number: F01N3/023 ,  F01N9/002 ,  F01N2550/04 ,  F01N2560/05 ,  F01N2560/12 ,  G01N27/043 ,  Y02T10/47

Abstract: A sensor is disclosed for detecting the level of particle accumulation in a particulate filter (32) having a filter material (41) effective to extract particulates from the exhaust gas flow of an internal combustion engine (12). The sensor includes at least two electrodes (42, 44) extending into the filter material (41) and being spaced apart by a preselected distance (S) and a circuit for producing an electrical signal which is responsive to the electrical resistance between the electrodes (42, 44) whereby the measured resistance is responsive to the level of particulate accumulation in the filter (32).

Abstract translation: 公开了一种用于检测颗粒过滤器（32）中的颗粒积聚水平的传感器，该颗粒过滤器（32）具有有效地从内燃机（12）的废气流中提取颗粒物的过滤材料（41）。 传感器包括至少两个延伸到过滤材料（41）中的电极（42,44），并且隔开预定距离（S）和用于产生对电极之间的电阻作出响应的电信号的电路（ 42，44），由此所测量的电阻响应于过滤器（32）中的颗粒积聚的水平。

公开(公告)号：WO1993007383A1

公开(公告)日：1993-04-15

申请号：PCT/US1991009684

申请日：1991-12-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  STONE, Dwight, V.

IPC: F02M57/02

CPC classification number: F02M63/00 ,  F02B3/06 ,  F02B2075/1832 ,  F02B2275/14 ,  F02B2275/40 ,  F02F7/006 ,  F02M55/00 ,  F02M55/007 ,  F02M57/025 ,  F02M2200/31 ,  Y02T10/123 ,  Y02T10/125

Abstract: A fuel injection system (10) is disclosed comprising a high pressure actuating fluid pump (332), a first plurality of hydraulically-actuated unit injectors (18), and a first high pressure actuating fluid manifold (334) arranged in fluid communication with each of the first plurality of unit injectors (18). The system further comprises a second plurality of hydraulically-actuated unit injectors (18), a second high pressure actuating fluid manifold (336) arranged in fluid communication with each of the second plurality of unit injectors (18), and a device (338) for controlling Helmholtz resonation of pressure waves between the manifolds (334, 336) and/or between the pump (332) and either manifold (334, 336). Hydraulically-actuated unit injector fuel systems, having multiple manifolds for supplying high pressure actuating fluid to the unit injectors, can establish a Helmholtz resonance effect between the manifolds. The present invention controls the creation of Helmholtz resonance between the manifolds (334, 336) and also between the pump (332) and either manifold (334, 336).

公开(公告)号：WO1993007382A1

公开(公告)日：1993-04-15

申请号：PCT/US1991009683

申请日：1991-12-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  AUSMAN, Thomas, G. ,  HARMON, Michael, P. ,  SHINOGLE, Ronald, D. ,  ZIMMER, Michael, T.

IPC: F02M57/02

CPC classification number: F02M59/105 ,  F02B2075/1832 ,  F02B2275/14 ,  F02F7/006 ,  F02M57/025 ,  F02M59/466 ,  F02M2200/304 ,  Y02T10/123

Abstract: An actuator and valve assembly (28) for an electronically-controlled unit injector (18) is disclosed which comprises an electrically-energizable actuator assembly (36) and a device (56) for communicating, collecting and draining damping fluid with respect to at least one cavity (57, 89) of the actuator assembly (36). If too much damping fluid remains in the actuator assembly (36) after engine shutdown, that damping fluid may cool off and cause slow response of the actuator and valve assembly (28) during cold engine starting. The end result is that quick starting and/or operation of the engine (12) may be hindered, particularly under cold engine conditions. The communicating, collecting and draining means (56) permits at least a portion of the hot damping fluid to automatically drain from the cavity (57, 89) after the engine (12) has been shutdown.

Abstract translation: 公开了一种用于电子控制单元喷射器（18）的致动器和阀门组件（28），其包括可电激励的致动器组件（36）和用于相对于至少相对于阻尼流体传递，收集和排放阻尼流体的装置（56） 致动器组件（36）的一个空腔（57,89）。 如果在发动机关闭之后，致动器组件（36）中剩余的阻尼流体太多，则在发动机冷起动期间，该阻尼流体可能冷却并引起致动器和阀组件（28）的响应较慢。 最终结果是发动机（12）的快速起动和/或操作可能受到阻碍，特别是在发动机冷却条件下。 在发动机（12）已经关闭之后，连通，收集和排放装置（56）允许热阻尼流体的至少一部分从空腔（57,89）自动排出。

公开(公告)号：WO1993001470A1

公开(公告)日：1993-01-21

申请号：PCT/US1991007118

申请日：1991-09-30

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  BITAR, Ali, A.

IPC: G01D05/48

CPC classification number: F15B15/2869 ,  F15B15/28 ,  G01D5/48 ,  G01D21/02

Abstract: An apparatus (102) is adapted to detect the linear extensions of a plurality of hydraulic cylinders. Each hydraulic cylinder defines a variable length coaxial resonant cavity. Under the control of a controller (112), a transmitting section (106), a receiving section (110) and multiplexers (306, 307) are used to multiplex RF signals to and from the cavity of each cylinder and to determinethe resonant frequency of the cavity. The controller (112) determines the linear extension of each cylinder as a function of its resonant frequency.

公开(公告)号：WO1992021870A1

公开(公告)日：1992-12-10

申请号：PCT/US1991004009

申请日：1991-06-07

Applicant: CATERPILLAR INC. ,  MIRHAKIMI, Siamak ,  EARLESON, Walter, Earle ,  OHLSON, Eric, Wayne

Inventor： CATERPILLAR INC.

IPC: F02B77/08

CPC classification number: G01M15/046 ,  F02B77/08 ,  F02D2200/1015 ,  G01L3/109

Abstract: Machine assemblies often include driving and driven members such an engine associated with a driven load. These members typically include rotatable shafts (16, 18) interconnected by a flexible coupling element (20). System torsionals in such a machine often cause the shafts (16, 18) to be out of phase with one another. When this occurs, excessive energy is transferred to the coupling element (20). The subject apparatus (22) includes a device (24) for detecting and measuring rotational phase differences between driving and driven rotatable shafts (16, 18). The measured phase differences are compared with a reference phase difference level and an error signal is produced in response to the measured phase difference exceeding the reference level.

Abstract translation: 机器组件通常包括与被驱动负载相关联的驱动和从动构件。 这些构件通常包括通过柔性联接元件（20）互连的可旋转轴（16,18）。 这种机器中的系统扭转常常导致轴（16,18）彼此异相。 当这种情况发生时，过多的能量被传递到耦合元件（20）。 主体装置（22）包括用于检测和测量驱动和被驱动的可旋转轴（16,18）之间的旋转相位差的装置（24）。 将测量的相位差与参考相位差电平进行比较，并且响应于测量的相位差超过参考电平而产生误差信号。