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公开(公告)号：US10850960B2
公开(公告)日：2020-12-01
申请号：US16060041
申请日：2015-12-08
Applicant: DOOSAN CORPORATION
Inventor： Dong Ho Han
Abstract: The present invention is related to a cooling device for a forklift brake system, which is capable of maintaining a predetermined level of heat-radiation performance by reducing heat when heat is generated in a service brake that is provided at a forklift driving shaft. A cooling device for a forklift brake system according to an exemplary embodiment of the present invention allows cooling oil to bypass a cooler when a pressure of the cooling oil is abnormally increased or there is a concern that a pressure of the cooling oil is increased, thereby preventing the cooler from being damaged.
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公开(公告)号：US20160304328A1
公开(公告)日：2016-10-20
申请号：US15100669
申请日：2014-10-16
Applicant: DOOSAN CORPORATION
Inventor： Dong Ho Han
CPC classification number: B66F9/07568 , B62D5/063 , B62D5/08 , B62D5/20 , B62D6/02
Abstract: The present disclosure relates to a forklift. The forklift according to the present disclosure is controlled such that when a traveling speed reaches or becomes higher than a predetermined traveling speed, a flow rate of hydraulic oil to be provided to a steering unit is reduced. Therefore, in order to implement a desired direction change, a steering wheel needs to be rotated to a relatively larger degree than when the forklift travels at a low speed. That is, straight traveling performance may be improved by reducing sensitivity of a direction change of the forklift to an operation of the steering wheel.
Abstract translation: 本公开涉及一种叉车。 根据本公开的叉车被控制为使得当行驶速度达到或变得高于预定行驶速度时，提供给转向单元的液压油的流量减小。 因此，为了实现期望的方向改变，方向盘需要相对于叉车以低速行驶时相对较大的程度旋转。 也就是说，可以通过降低叉车的方向改变对方向盘的操作的灵敏度来提高直行驶性能。
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公开(公告)号：US20160297657A1
公开(公告)日：2016-10-13
申请号：US15100664
申请日：2014-10-16
Applicant: DOOSAN CORPORATION
Inventor： Dong Ho Han
CPC classification number: B66F9/22 , B60T8/341 , B62D5/06 , B62D6/02 , B66F9/07568
Abstract: The present disclosure relates to a forklift. The forklift according to the present disclosure is controlled such that when a traveling speed reaches or becomes higher than a predetermined traveling speed, pressure of hydraulic oil to be provided to a steering unit is reduced. Therefore, in order to implement a desired direction change, a steering wheel needs to be rotated to a relatively larger degree than when the forklift travels at a low speed. That is, straight traveling performance may be improved by reducing sensitivity of a direction change of the forklift to an operation of the steering wheel.
Abstract translation: 本公开涉及一种叉车。 根据本公开的叉车被控制成使得当行驶速度达到或变得高于预定行驶速度时，提供给转向单元的液压油的压力降低。 因此，为了实现期望的方向改变，方向盘需要相对于叉车以低速行驶时相对较大的程度旋转。 也就是说，可以通过降低叉车的方向改变对方向盘的操作的灵敏度来提高直行驶性能。
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