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| Number | Title | Issue Date |
| D660323 | Engine cover for construction machine | 05/22/2012 |
| 8162618 | Method and device for controlling pump torque for hydraulic construction machine A current load rate of an engine 10 is computed and a maximum absorption torque of at least one hydraulic pump 1, 2 is controlled so that the load rate is held at a target value. Engine stalling can be prevented by decreasing the maximum absorption tor... | 04/24/2012 |
| 8162087 | Construction machine A top cover (17) is provided at an upper position of a supporting structure (12) of heat exchange device (11), and an upper opening (20C) is configured to be provided in a detachable type cover (20) for constituting this top cover ... | 04/24/2012 |
| 8161736 | Exhaust gas cleaning system for engineering vehicle An exhaust gas cleaning system for an engineering vehicle, such as a hydraulic excavator, is capable of performing manual regeneration control of a regeneration fuel injector 40 that is started only under the following conditions: a manual regeneration starti... | 04/24/2012 |
| D658211 | Hydraulic excavator | 04/24/2012 |
| 8160778 | Steering system for engineering vehicle A hydraulic steering unit 5 generates a control pressure corresponding to the rotational quantity and rotational direction of the steering wheel 109 on the basis of pressurized oil of a pilot pump 13. Signals of pressure sensors 6a | 04/17/2012 |
| 8160773 | Travel drive apparatus for a working vehicle In case a temperature (T) of a lubricant oil (G) cannot be detected by an oil temperature sensor (51) provided on an output side of a lubricant pump (46), the temperature (Tm) of a wheel drive motor (17) is detected by using a motor temperature ... | 04/17/2012 |
| 8155834 | Traveling drive unit for working vehicle A lubricant circulation pump (46) which is driven by an electric motor (47) is provided in the course of a circulation path (41A, 41B) for circulating lubricant oil to a wheel mounting case (19) which is rotated together with a rea... | 04/10/2012 |
| 8151915 | Electric drive vehicle An electric drive vehicle having a power generator coupled to an engine, a first power converter connected with the power generator for converting the AC power generated by the power generator to DC power, a second power converter connected with the first power conv... | 04/10/2012 |
| 8146691 | Travel drive system for work vehicle, work vehicle, and travel drive method A travel drive system for a work vehicle includes: an HST drive device comprising a hydraulic pump driven by a prime mover and a hydraulic motor connected to the hydraulic pump by a closed circuit; an electric motor driven by using electric power generated by drive ... | 04/03/2012 |
| 8145384 | Lubricating oil cooling device for traveling speed reduction gear The present invention provides a traveling speed reduction gear lubricating oil cooling device that enables optimal temperature control for lubricating oil delivered via a lubricating oil pump that can be started up with a relatively small motor without running the ... | 03/27/2012 |
| 8137238 | Gearshift controller for industrial vehicle A gearshift controller for an industrial vehicle, includes: a speed ratio detection unit that detects a speed ratio of speeds of an input axis and of an output axis of a torque converter; a gearshift control unit that shifts up a speed stage when the detected speed ... | 03/20/2012 |
| 8137047 | Double-arm working machine A double-arm working machine has an upper swing structure, an operator cabin, left swing post and right swing post provided in front of the upper swing structure, and a left work front A and right work front B provided on the left swing post and the right swing post... | 03/20/2012 |
| 8136355 | Pump control apparatus for hydraulic work machine, pump control method and construction machine A pump control apparatus for a hydraulic work machine includes: a rotation speed setting device that sets a target rotation speed for an engine; a rotation speed control device that controls an engine rotation speed so as to adjust the engine rotation speed to the t... | 03/20/2012 |
| 8127541 | Working fluid cooling control system for construction machine A working fluid cooling control system has a controller 100 that receives inputs signals from a traveling motor speed pickup 101, a pressure sensor 102, a signal receiving line 103a of an option selecting switch 103 and a te... | 03/06/2012 |
| D655320 | Engine cover for construction machine | 03/06/2012 |
| 8125105 | Power supply device and construction machine A power supply device comprises a bidirectional voltage converter unit that performs voltage stepping up or voltage stepping down between a first terminal and a second terminal; a first switching unit that applies a DC voltage obtained from the first electric power ... | 02/28/2012 |
| 8108101 | Lubricating oil cooling device for traveling speed reduction gear A traveling speed reduction gear lubricating oil cooling device has a temperature sensor for detecting the temperature of lubricating oil to be installed outside a wheel mounting sleeve without running the risk of damage to a lubricating oil pump in a cold work envi... | 01/31/2012 |
| 8104842 | Transporter vehicle An upper cross beam 10 for supporting a rear side of a cab 19 from below is formed as a separate member from a base frame 7. This upper cross beam 10 is separably mounted on left and right column portions 7E of the base frame 7 | 01/31/2012 |
| 8100806 | Travel assembly A travel assembly, for example, suited for arrangement on a vehicle such as a mining dump truck, is provided with a travel motor, a planetary speed reduction mechanism for transmitting rotation of the travel motor at a lower rotational speed, a spindle forming an ax... | 01/24/2012 |
| 8096910 | Travel assembly for dump truck Wheels of a dump truck are each provided with a travel assembly for transmitting an output of an electric motor to the wheel via a reduction gear unit. The travel assembly is provided with a cooling circuit for cooling lube oil. The cooling circuit has an oil cooler... | 01/17/2012 |
| 8096382 | Construction machine [PROBLEM] To provide a construction machine capable of performing necessary operation or operations without a difficulty even when a remaining amount of a reducing agent becomes small. [SOLUTION] In a hydraulic excavator having an engine, a hydraulic cylinder... | 01/17/2012 |
| D652433 | Portion of console for construction machine | 01/17/2012 |
| D652063 | Console for construction machine | 01/10/2012 |
| D652062 | Wheel loader | 01/10/2012 |
| D652061 | Wheel loader | 01/10/2012 |
| 8087903 | Hydraulic rotary machine In a hydraulic rotary machine having rotational shaft provided within a casing a rotational shaft, a cylinder block rotationally interlocked with the rotational shaft and formed with a plural number of cylinder bores, and pistons slidably received in the cylinder bo... | 01/03/2012 |
| 8087489 | Articulated construction vehicle including a lever-operated electrical Control device An articulated construction vehicle is provided with an articulated, self-propelled body, body-articulating hydraulic cylinders for articulating the self-propelled body, a pilot-operated directional control valve for controlling a flow of pressure oil to the body-ar... | 01/03/2012 |
| D650740 | Battery bracket for construction machine | 12/20/2011 |
| 8062160 | Travel assembly A travel assembly, for example, suited for arrangement on a vehicle such as a mining dump truck, is provided with a travel motor, a planetary speed reduction mechanism for transmitting rotation of the travel motor at a lower rotational speed, a spindle forming an ax... | 11/22/2011 |
| 8056331 | Pump torque controller of hydraulic working machine To permit a precise and easy adjustment of a pump absorption torque of a main pump in accordance with environmental conditions when a sub-pump different in characteristics from the main pump is connected to a prime mover. A main controller 12 includes a proce... | 11/15/2011 |
| 8051649 | Hydraulically driven industrial machine A hydraulically driven industrial machine having a variable displacement type hydraulic pump adapted to take in and pressurized working oil from an working oil tank, a hydraulic actuator to be driven by pressurized working oil delivered from the hydraulic pump throu... | 11/08/2011 |
| 8042876 | Transporter vehicle A branch line branching from midway of a hydraulic conduit or each of actuator side oil passages to connect a bottom side oil chamber of a hoist cylinder to a tank is provided to the hydraulic conduit or each of the actuator side oil passages. A manual operation val... | 10/25/2011 |
| 8033614 | Transporter vehicle Detection signals from lever sensor (29), sit-down sensor (30) and vehicle speed sensor (31) are read into a controller (32). A control signal is produced by the controller (32) to switch a directional control valve (20) of ... | 10/11/2011 |
| 8024094 | Maintenance history information management system for construction machine The present invention provides a maintenance history information management system for a construction machine that is capable of enhancing the reliability of temporal information about maintenance history data. A data recording device 30 is incorporated in a ... | 09/20/2011 |
| 8008877 | Electrically-driven dump truck An electrically-driven dump truck 1 uses resistors to convert electric power generated during retarder braking operation into heat energy. A body frame 2 has front and rear wheels, a support base 2A, a cab 4 mounted on an upper left surfa... | 08/30/2011 |
| 8006491 | Pump control apparatus for construction machine On the basis of reference torque and torque correction amount output units (T1 and T2), a torque control command pressure is calculated so that the input torques of first and second pumps are increased. The calculated torque command instruction pressur... | 08/30/2011 |
| 7979229 | Displacement control signal correction method, displacement control device, construction machine and displacement control signal correction program The present invention includes: a displacement altering unit for generating a displacement control pressure corresponding to a displacement control signal; an input unit for inputting a target displacement; a pressure calculating unit for calculating a displacement ... | 07/12/2011 |
| 7979182 | Swing drive system for construction machine A swing drive system for a construction machine enhances safety for an operator. A swing control means 55A has a lever input amount-torque table 11 and an actual rotating speed-torque table 13. Based on a lever input amount and an actual rotatin... | 07/12/2011 |
| 7970522 | Gear shifting control system for work machine A work machine gear shifting control system provides gear shifting conditions for an automatic gear shifting mode in accordance with work site conditions. An area 62 of a display device 49 displays a permissible velocity setting range and setup operati... | 06/28/2011 |
