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61. 发明申请

WO1991001243A1 GUARD ASSEMBLY FOR A VEHICLE 审中-公开
标题翻译：保卫车辆总成
公开(公告)号：WO1991001243A1
公开(公告)日：1991-02-07
申请号：PCT/US1989004066
申请日：1989-09-22
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , LAMMERS, Bryan, G. , BLAHA, Kenneth, V.
IPC分类号： B62D55/084
CPC分类号： B62D55/0845
摘要： A guard assembly (28) for protecting lower portions of an earthmoving vehicle, such as the engine (12), transmission, and drive train, includes a guard plate (44) which is held captive within a first space (38) defined by sidewalls (30, 32) and endwalls (34, 36) of the vehicle frame (26). The guard plate (28) can move within predetermined limits in longitudinal and lateral directions within the first space (38). Prior art lower guard assemblies utilize threaded fasteners to secure the guards directly to the vehicle frame. This produces loosening and breakage of the threaded fasteners when the vehicle frame flexes and twists. The subject guard assembly (28) allows the guard plate (44) to move slightly as the vehicle frame (26) flexes and twists. Since the threaded fasteners (46) holding the guard plate (44) in place do not penetrate the guard plate (44), the threaded fasteners (46) are not overstressed or slipped at the joint interfaces.

62. 发明申请

WO1991000208A1 SYSTEM FOR INDEPENDENT CONTROL OF VEHICLE BRAKES 审中-公开
标题翻译：车辆制动器独立控制系统
公开(公告)号：WO1991000208A1
公开(公告)日：1991-01-10
申请号：PCT/US1989003450
申请日：1989-08-14
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , COUTANT, Alan, R. , FEE, David, M.
IPC分类号： B62D11/18
CPC分类号： B60T13/12 , B62D11/08 , B62D11/183
摘要： A control system (34) is provided in a propulsion system (10) to automatically apply the right or left brake (28/30) on the respective drive unit (24/26) with respect to operator input conditions. In this arrangement, if the operator selects a clockwise steer of the vehicle (12), it will steer in the clockwise direction regardless of whether the vehicle is moving in the forward direction (F) or the reverse direction (R). Likewise, the same is true if the operator selects a counterclockwise steer direction (CCW) of the vehicle. This is accomplished by the control and logic systems (34, 64) sensing the travel direction of the vehicle, the steer direction of the vehicle, and automatically applying the proper brake (28/30) based on the input conditions. The control and logic systems (34, 64) set forth herein provides a selective independent control of respective right and left brakes (28, 30) to provide more precise control of the vehicle when operating in tight areas and on slopes.

63. 发明申请

WO1990014515A1 ARTICULATED PISTON WITH A COOLING RECESS HAVING A PREESTABLISHED VOLUME THEREIN 审中-公开
标题翻译：具有预先确定的体积的冷却活塞的活塞活塞
公开(公告)号：WO1990014515A1
公开(公告)日：1990-11-29
申请号：PCT/US1989003434
申请日：1989-08-11
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , STRATTON, Michael, K. , JESKE, Clifford, O.
IPC分类号： F02F03/00
CPC分类号： F01P3/18 , F01M2001/086 , F02B3/06 , F02B23/0696 , F02F3/0069 , F02F3/22 , F02F2003/0061 , F02F2200/04 , F05C2201/021 , F05C2201/0448 , Y02T10/125
摘要： The design and construction of past articulated pistons has failed to include the most efficient cooling reservoir for conducting heat from the piston to the coolant. The present invention overcomes these problems by using an annular cooling recess (82) of a precisely defined cross sectional shape and volume and a baffle plate (96) fixedly sealingly attached in heat conducting relationship to the piston member (24) to form a cooling gallery (86). The baffle plate (96) has an opening (92) therein and an upwardly extending raised portion (90) to preestablish a trapped volume of coolant therein. The assembly, positioning of the plate (96) and the preestablished trapped volume insures high efficiency of the coolant to absorb heat through the scrubbing action of the coolant on the recess (82) and the heat absorbed by the trapped coolant because of the heat conducting relationship of the plate (96) and the piston member (24).

64. 发明申请

WO1990013758A1 TORSIONAL VIBRATION DAMPER 审中-公开
标题翻译：扭转振动阻尼器
公开(公告)号：WO1990013758A1
公开(公告)日：1990-11-15
申请号：PCT/US1989003432
申请日：1989-08-11
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , GRAHAM, Lawrence, F. , SWANSON, Victor, E.
IPC分类号： F16F15/10
CPC分类号： F16F15/173 , Y10T74/2123
摘要： A damper (10) of vibrations of the viscous fluid type has a two-piece housing (16) of which a plate (21) is formed by a spinforming process (141). The formed plate (21) has a plurality of internal walls (32) of which at least a portion of the walls (32) are usable as bearing surfaces after being spinformed and require no further machining thereof. The damper (10) includes a plurality of individual bearings (26) for radially and axially positioning a rotatable weight (20) within the housing (16) to form preselected spaces (26) between the housing (16) and the weight (20). An annular supply chamber (27) and the preselected spaces (26) have a viscous fluid (28) disposed therein to provide a damping medium between the rotatable weight (20) and the housing (16).
摘要翻译：粘性流体型振动的阻尼器（10）具有两件式的壳体（16），其中通过旋转成形工艺（141）形成板（21）。形成的板（21）具有多个内壁（32），其中至少一部分壁（32）可以在被成形之后用作轴承表面，并且不需要进一步的加工。阻尼器（10）包括多个单独的轴承（26），用于在壳体（16）内径向和轴向地定位可旋转重物（20），以在壳体（16）和重物（20）之间形成预选空间（26）。环形供应室（27）和预选空间（26）具有设置在其中的粘性流体（28），以在可旋转重物（20）和壳体（16）之间提供阻尼介质。

65. 发明申请

WO1990011460A1 LOAD PISTON RESET CONTROL MECHANISM 审中-公开
标题翻译：负载活塞复位控制机制
公开(公告)号：WO1990011460A1
公开(公告)日：1990-10-04
申请号：PCT/US1989001971
申请日：1989-05-09
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , LORIMOR, Larry, W.
IPC分类号： F16D11/00
CPC分类号： F16D48/0206 , F16D2048/0209 , F16D2048/0224 , F16D2048/0281
摘要： Fluid systems for controlling clutch engagement of a vehicle drive train normally have modulating pressure relief valves to aid in smooth clutch engagement. It is desired in such systems to ensure that the system pressure is reduced during a shift so that the load piston of the modulating pressure relief valve is fully reset prior to engagement of the vehicle drive train. In this arrangement, a fluid system (10) is provided which has a plurality of clutches (12, 14, 16). In order to ensure that the load system is fully reset, a load piston reset control mechanism (110) is provided which establishes a path to vent the pressurized fluid from a load piston pressure chamber (80) of a modulating pressure relief valve (54) in response to the pressure of the fluid in one of the clutches (16) being below a predetermined pressure level.

66. 发明申请

WO1990011435A1 FUEL COMBUSTION SYSTEM AND METHOD OF OPERATION FOR AN OTTO-CYCLE INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：燃油燃烧系统和OTTO循环内燃机的运行方法
公开(公告)号：WO1990011435A1
公开(公告)日：1990-10-04
申请号：PCT/US1990000759
申请日：1990-02-12
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , BAILEY, John, M.
IPC分类号： F02B19/10
CPC分类号： F02B19/14 , F02B1/04 , F02B19/02 , Y02T10/125
摘要： A fuel combustion system (12) for an Otto-cycle internal combustion engine (10) including a main combustion chamber (14) and an auxiliairy combustion chamber (26). Timing of ignition is effected by opening a control valve device (28) during a latter portion of the compression phase which permits a pressurized combustible mixture (18) to flow from the main combustion chamber (14) and into the auxiliary combustion chamber (26) where the combustible mixture therein is ignited. Hot burning gases emanating from the auxiliary combustion chamber (26) through a suitable directing device (32) provide single or multiple and penetrating sources of ignition for the bulk of the combustible mixture (18) present in the main combustion chamber (14). This arrangement provides a very reliable and long life ignition system for Otto-cycle engines and is especially advantageous for engines which burn a relatively lean combustible mixture.

67. 发明申请

WO1990010850A1 DYNAMIC PAYLOAD MONITOR 审中-公开
标题翻译：动态负载监视器
公开(公告)号：WO1990010850A1
公开(公告)日：1990-09-20
申请号：PCT/US1989001972
申请日：1989-05-09
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , KYRTSOS, Christos, T. , WORRELL, Dean, A.
IPC分类号： G01G19/10
CPC分类号： G01G19/10 , E02F9/264 , G01G5/04
摘要： A dynamic payload monitor (10) measures and displays payload weight for a loader vehicle (11) by sensing the hydraulic pressure and position of the lift arm cylinders (14). The payload weight is computed by curve fitting the sensed cylinder pressure and position data to a second order polynomial, and then performing interpolation or extrapolation with a pair of pressure versus position reference parabolas obtained during calibration. The weight computation algorithms used in the dynamic payload monitor (10) is applicable to a number of work vehicles having at least one work implement linkage (12) and at least one hydraulic cylinder (14) for effecting the linkage geometry.

68. 发明申请

WO1990002932A1 METHOD AND APPARATUS FOR MEASURING DETONATION IN AN INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于在内燃机中测量爆震的方法和装置
公开(公告)号：WO1990002932A1
公开(公告)日：1990-03-22
申请号：PCT/US1988004088
申请日：1988-11-16
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , McCOY, Steven, R. , STEVENSON, Thomas, T. , CARR, Douglas, E. , KING, Kevin, D.
IPC分类号： G01L23/22
CPC分类号： F02P5/152 , G01L23/225 , Y02T10/46
摘要： A method and apparatus is provided for measuring detonation in an internal combustion engine (14). Vibration sensors (12) located on the engine (14) send signals through a filter (34) which is tuned to the cavity resonance frequency (f) of the engine's cylinders (16, 18, 20, 22, 24, 26). The peaks (A) and valleys (B) of the filtered signals are detected and ratiometrically compared one with another to determine the magnitude of detonation. The detonation information may be used by an engine control (44) to retard timing in response to a predetermined level of detonation.

69. 发明申请

WO1990002872A1 METHOD AND APPARATUS FOR CONTROLLING A SOLENOID OPERATED FUEL INJECTOR 审中-公开
标题翻译：用于控制电磁操作燃油喷射器的方法和装置
公开(公告)号：WO1990002872A1
公开(公告)日：1990-03-22
申请号：PCT/US1988004603
申请日：1988-12-23
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , SHINOGLE, Ronald, D. , AUSMAN, Thomas, G.
IPC分类号： F02D41/20
CPC分类号： F02D41/20 , F02D2041/2003 , F02D2041/2013 , F02D2041/2017 , F02D2041/2027
摘要： A solenoid control circuit (160) provides energy to selected solenoids (168a-168c) to control actuation of a control valve of a fuel injector and, hence, the timing and duration of fuel delivered to each cylinder of an internal combustion engine. The current provided to each solenoid is also controlled to provide a three tier current wave form (B) having a pull-in current level (B1), a hold-in current level (B3), and an intermediate current level (B2). Energizing the solenoid at the pull-in current level (B1) starts movement of the control valve. After the control valve starts to move, the current level is reduced to the intermediate level (B2), which is less than the pull-in current level (B1), but great enough to continue movement of the control valve. Further reduction of the current level to the hold-in level (B3), which is less than either of the other current levels but sufficient to hold the control valve at the moved position. The solenoid is then de-energized and the control valve returned to its initial position to stop the flow of fuel to the engine. The foregoing is repeated for each of the other control valves of the fuel injectors to save energy and reduce the heat to be dissipated.

70. 发明申请

WO1989008042A1 BELT TENSION CONTROL SYSTEM 审中-公开
标题翻译：皮带张力控制系统
公开(公告)号：WO1989008042A1
公开(公告)日：1989-09-08
申请号：PCT/US1988001474
申请日：1988-05-09
申请人： CATERPILLAR INC.
发明人： CATERPILLAR INC. , SATZLER, Ronald, L.
IPC分类号： B62D55/30
CPC分类号： B62D55/30
摘要： Hydraulic recoil mechanisms are useful, for example, in maintaining desired tension in the drive belts of vehicles. The hydraulic components of such mechanisms are prone to leakage over an extended period of frictionally driven belted non-usage and thereby allow the tension in the belts to gradually decrease. The subject belt tension control system (62) includes a friction locking device (52) to automatically lock the piston rod (41) relative to the cylinder (36) to maintain a predetermined level of tension in the belt (18) when the pump (63) which furnishes pressurized hydraulic fluid to the system stops operating. Thus, the frictional couple between the belt (18) and the drive wheel (16) is maintained during periods of non-use and the parking brake is effective to hold the vehicle at a stationary position.

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