About 218 results
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https://drivepatents.com/patents/967272 · 19 Nov 2014
In an engine (10), an exhaust gas purifying device (20) and a regeneration device (24), there are provided detectors for detecting working states thereof, such as a rotational sensor (28), a cooling water temperature sensor (29), an intake temperature sens...
https://drivepatents.com/patents/967267 · 19 Nov 2014
A regeneration device (22) that performs regeneration treatment of a particulate matter removing filter (21) estimates a trapping amount of particulate matter trapped in the filter (21) by two systems. Specifically, there are provided an estimating unit th...
https://drivepatents.com/patents/968112 · 29 Oct 2014
There is provided a hydraulic excavator including a hydraulic pump (6) driven by an engine (7), a boom cylinder (3a) driven by hydraulic fluid delivered from the hydraulic pump (6), a swing motor (16) driven electrically, an operating device (4A) for opera...
https://drivepatents.com/patents/969124 · 8 Oct 2014
A control pressure switching valve (57) is disposed between a displacement regulator (26) and a pressure control valve (44). The control pressure switching valve (57) is switched between a control position (j), in which a load sensing control pressure (PLS...
https://drivepatents.com/patents/969440 · 1 Oct 2014
A regeneration device (22) performs regeneration of a filter (21) by burning particulate matter trapped by the filter (21) of an exhaust gas purifying device (18). The regeneration device (22) is configured to perform two types of processing, that is, auto...
https://drivepatents.com/patents/969788 · 24 Sep 2014
A cooling fan control unit, in response to an operation performed at the rotation direction selector switch to select a reverse rotation setting while the cooling fan is rotating forward, lowers a relief pressure setting at the variable relief valve to a p...
https://drivepatents.com/patents/969755 · 24 Sep 2014
An engine control device for a work vehicle decides that an idling stop condition is established when the front device is in the unengaged state, the steering device is in the unengaged state, the accelerator pedal is in the non-operation state, either the...
https://drivepatents.com/patents/969751 · 24 Sep 2014
A clutch control device for a work vehicle includes a determination unit that determines as to whether or not a clutch cutoff condition has been established based upon whether or not the accelerator pedal is being operated, as determined by the accelerator...
https://drivepatents.com/patents/970881 · 27 Aug 2014
In hydraulic work machines having an electric assist motor 10 linked to an engine 7 and a hydraulic pump 6, there is provided a hybrid-driven hydraulic work machine capable of maintaining the torque of the engine at a prescribed value when the load on the ...
https://drivepatents.com/patents/971450 · 13 Aug 2014
An operator's seat mounting section (11) that is positioned in back side of a floor member (10) includes a seat plate (11D) for mounting an operator's seat (14) and an equipment mounting part (11F) that rises upward from the right side of the seat plate (1...