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公开(公告)号：EP0402474B1
公开(公告)日：1995-06-07
申请号：EP89913242.7
申请日：1989-11-29
IPC分类号： E02F3/43
CPC分类号： E02F9/2296 , E02F9/2242 , E02F9/2282 , E02F9/2292
摘要： A service valve circuit in a hydraulic excavator having a predetermined actuator operation valve and which is connected for operating a special attachment. A confluence valve (17) which effects electromagnetic proportional flow-rate control is provided in a confluence circuit (16) that makes communication betwen the inflow circuits (3F, 3R) of two variable pumps (2F, 2R). There are further provided an electric switch (21) which turns on or off the confluence valve (17) depending upon a required flow rate, and a volume (22) which adjusts the flow rate after passing the confluence valve (17) over a range of a maximum of 1 to 2 pumps depending upon the required flow rate. The necessity of confluence for the flow rate required by the special attachment (e) or the confluent flow rate is set in advance to eliminate excess or lack of confluent flow rate. Therefore, there is no need of adjusting the flow rate depending on the number of revolutions of the engine, and no delay develops in the operation even when the operation of special attachment is switched into the turning operation or the running operation.
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公开(公告)号：EP0481077B1
公开(公告)日：1995-04-19
申请号：EP90909833.7
申请日：1990-06-29
CPC分类号： E21B47/02224 , E21D9/003
摘要： A position measuring device that is capable of detecting the position of an underground excavator with ease and accuracy, especially its position on the horizontal plane, when excavating the underground by a shield machine, etc. For this purpose, it is provided with a transmitter (10) that generates an alternating current magnetic field and consists of at least two sets of cables (10a, 10b), a receiver (30) that receives the magnetic field, and a computing unit (60) that discriminates a received signal and computes the position of the underground excavator (20). The cables (10a, 10b) are installed crossing each other nearly at right angles. The receiver (30) is constituted of two sets of magnetic field detecting elements (S1, S2) installed crossing each other nearly at right angles and supported by a receiver supporting device (40) that turns so that these elements always maintain a specified angle to the two sets of cables.
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公开(公告)号：EP0414901B1
公开(公告)日：1995-03-08
申请号：EP89913090.0
申请日：1989-11-22
CPC分类号： F16H61/702 , F16H59/18 , F16H59/54 , F16H59/68 , F16H61/061 , F16H61/08 , F16H63/44 , F16H2059/6807 , F16H2061/0096 , F16H2061/0258 , F16H2306/44 , F16H2306/52
摘要： In a construction wherein an electronic pressure regulating valve (31 ∩ 36) is connected individually to each clutch of a two-stage transmission, i.e. main transmission (1st, 2nd, R, 4th, 3rd) and subtransmission (L, H) and each clutch can be controlled independently by a controller (10), the present invention cuts off the supply of an oil pressure to a transmission clutch for a present speed stage on the basis of a transmission instruction when the present speed stage is shifted down to the next stage at the time of power-ON, operates the pressure regulating valve so as to start the supply of the oil pressure to this transmission clutch at the point of time when the relative number of rotations at the transmission clutch for the next stage transmission becomes zero, then increases gradually the supply oil pressure after confirmation of the end of filling time to this transmission clutch, and thus prevents offensive feeling due to the speed change shock applied to an operator in whichever state the acceleration operation quantity and the brake operation state may be. In the shift-down operation involving the operations of the transmission clutches of both main and sub-clutches, a torque-OFF time is not provided to the sub-transmission clutch but the supply of the oil pressure to the clutch for the next stage transmission is started immediately so as to make the gradually increasing supply of the oil pressure. After this clutch is meshed, the gradually increasing supply of the oil pressure to the main transmission clutch is made after the filling time described above is over, and offensive feeling due to the transmission shock is prevented.
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公开(公告)号：EP0390920B1
公开(公告)日：1995-02-08
申请号：EP88909821.6
申请日：1988-11-14
IPC分类号： H04L12/00
CPC分类号： G08C25/00 , H04L12/423 , H04L29/06 , H04Q9/14
摘要： A series controller in which a plurality of node controllers are connected in series for a main controller to directly control a vatiety of sensors and actuators. The main controller intensively controls the sensor data or the actuator control data indirectly through a signal sequence delivered through the node controllers. In each node controller, furthermore, the data are transferred between the signal sequence and the sensors or the actuators that are to be controlled. An error code is added to the signal sequence to be transferred to the next port based upon the logical sum of the two conditions which are: whether there is an error confirmed by inspecting the error check code added in advance to the signal sequence to check the occurrence of an error among the node controllers, and whether an error code is added to the signal sequence to inform the occurrence of error.
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公开(公告)号：EP0381760B1
公开(公告)日：1995-01-18
申请号：EP89905209.6
申请日：1989-04-21
发明人： TAKEDA, Shyuichi
CPC分类号： C23C24/082 , B22F3/08
摘要： A method of forming a ceramic layer, which is compact and rich in adhesion to a metallic body, on the metallic body without adding binders even though said ceramics is hard to be sintered ceramics such as various kinds of non oxide ceramics. Said method comprises a step of placing ceramic powders and/or a mixture of ceramic powders and metallic powders or a mixture of metallic powders and non metallic powders on the metallic body and a step of forming the ceramic layer on the metallic body in a moment by a reaction heat of the ThermitR reaction under the pressurized condition. In addition, a metallic insert member can be disposed between said metallic body and various kinds of powder placed on said metallic body. Furthermore, the resulting ceramic/metal composite member is subjected to a hot hydrostatic pressing or a hot pressing under high temperatures and high pressures.
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公开(公告)号：EP0538243A3
公开(公告)日：1994-12-07
申请号：EP93200012.8
申请日：1988-06-24
CPC分类号： F16H61/0206 , F16H59/24 , F16H59/44 , F16H61/061 , F16H61/12 , F16H61/70 , F16H2059/6807 , F16H2059/683 , F16H2061/0209 , F16H2061/1204 , F16H2061/1208 , F16H2061/1216 , F16H2061/1232 , F16H2061/1252 , F16H2061/1268 , F16H2061/1276 , Y10T74/19251 , Y10T477/69383 , Y10T477/69387
摘要： When a speed is to be changed, a transmission controller of the present invention compares the electrical instruction (C₁-C₄) to be applied to each pressure control valve (51-56) with an output current (I₁-I₆) of a drive circuit and with the output (S₁-S₆) of clutch pressure detection means (101-106) and clutch abnormality is detected on the basis of the result of this comparison. When abnormality is detected, suitable measures are taken to reliably prevent double engagement of clutch.
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公开(公告)号：EP0457365B1
公开(公告)日：1994-10-19
申请号：EP91110985.8
申请日：1987-08-15
CPC分类号： E02F9/2235 , E02F9/2246 , F04B1/324 , F04B49/065 , F04B2203/0601 , F04B2203/0605 , F04B2205/05
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公开(公告)号：EP0268684B2
公开(公告)日：1994-09-07
申请号：EP87902743.1
申请日：1987-04-21
发明人： KANEKO, Kiyoshi
CPC分类号： G07C5/006 , F01M11/10 , F02B77/083 , F16N2260/18
摘要： Monitoring system for maintenance of cars used for the purpose of automatically informing time for replacement of objects to be replaced, such as oil, filters etc. Said monitoring system includes a detector of engine operation for detecting operating time of cars (1), a variety of switches (3, 4, 5, 6) and sensors (7, 8, 9), a device for storing predetermined time of replacement of each object to be replaced (13), a device which deducts said operating time from said predetermined time of replacement and outputs the result of the deduction as a signal (12), and a multi-display (2) for displaying objects to be replaced on the basis of said output signal. In such a manner, operators or persons in charge of cars can surely notice the time of replacement of each object to be replaced by means of the information on the display (2); therefore, said object can be replaced at an optimum time for replacement without replacement time unnoticed.
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39.发明公开Apparatus for controlling output from engine on crawler type tractor 失效Vorrichtung zur Motorleistungssteuerung eines Raupenschleppers。
公开(公告)号：EP0612916A2
公开(公告)日：1994-08-31
申请号：EP94201381.4
申请日：1989-08-23
CPC分类号： F02B29/04 , E02F9/2246 , E02F9/2253 , F02D29/02 , Y02T10/146
摘要： At the time of starting movement as well as at the time when a crawler type tractor, e.g., a bulldozer for performing a dosing operation and a ripping operation is held in a three-point grounding state, an output from an engine (10) is automatically reduced further from a normal cut-off state, whereby an operator is not required to depress a deceleration pedal (13). Consequently, a burden to be borne by him can be reduced substantially.
摘要翻译： 在起动时以及履带式拖拉机（例如，用于执行配量运行的推土机和拆卸操作）保持三点接地状态时，发动机（10）的输出为 自动地从正常切断状态进一步减小，由此操作者不需要按压减速踏板（13）。 因此，可以大大减少他所承担的责任。
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公开(公告)号：EP0423362B1
公开(公告)日：1994-08-03
申请号：EP90906340.6
申请日：1990-04-20
CPC分类号： F15B11/0445 , F15B13/0407 , F15B2211/30505 , F15B2211/30525 , F15B2211/428 , F15B2211/46 , F15B2211/50518 , F15B2211/50545 , F15B2211/5154 , F15B2211/55 , F15B2211/7058 , F15B2211/8609 , Y10T137/2554
摘要： A counterbalance valve provided in a hydraulic circuit to drive a hydraulic motor used for the travel device of a construction machine, and is capable of stopping the hydraulic motor in a short period of time while preventing cavitation and decelerating the motor without shock. Form implementing the above-said function, the valve proper (20) is provided with a spool (26) to allow ports (22, 23) on the sides of first and second pumps to communicate with or to be cut off from other ports (24, 25) on the sides of first and second motors, respectively. A structure provided is such that the spool is held in the neutral position with the spring force, displaced to the first position at which the port (23) on the side of the second pump communicates with the port (25) on the side of the second motor by pressure oil in the pressure receiving chamber (28) on the left side, and displaced to the second position at which the port (22) on the side of the first pump communicates with the port (24) on the side of the first motor by pressure oil in the pressure receiving chamber (29) on the right side, in which a plurality of throttle holes (37, 38 and 39) are formed between the pressure receiving chamber (28) on the left side and the port (22) on the side of the first pump as well as between the pressure receiving chamber (29) on the right side and the port (23) on the second pump so as to allow these ports to communicate with each other. An area produced by the throttle holes communicating with each other is maximum when the spool is in the first and second positions, minimum when the spool is slightly displaced toward the neutral position, and medium between the both when the spool is displaced further toward the neutral position.
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