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1.发明授权公开(公告)号：US10378559B2
公开(公告)日：2019-08-13
申请号：US15603203
申请日：2017-05-23
Applicant: HydraForce, Inc.
Inventor： Markus Bissbort , Joel Mekkes , Damiano Roberti , Tomasz Slawinski
IPC: F16D31/02 , F15B1/04 , F15B11/00 , F15B11/16 , F15B1/02 , F15B11/10 , F15B9/09 , F04B53/10 , F16K31/06 , B60G17/056
Abstract: A hydraulic suspension system includes a suspension cylinder, a pump, and a control valve therebetween. The control valve includes a spool reciprocally movable between a pump flow position and a tank flow position in which a control port of the control valve is in communication with a pump and a tank, respectively. A piloted logic element in fluid communication with and interposed between the control valve and the suspension cylinder is selectively movable between a through-flow position in which fluid can flow in either direction between a chamber of the suspension cylinder and the control port of the control valve and a blocked position in which fluid is prevented from flowing in or out of the chamber of the suspension cylinder. The logic element is biased to the blocking position, moving to the through-flow position when subjected to a crack pressure delivered from the control port of the control valve.
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公开(公告)号：US09964965B2
公开(公告)日：2018-05-08
申请号：US14310623
申请日：2014-06-20
Applicant: HydraForce, Inc.
Inventor： David Dornbach , Anthony Casale , Tomasz Slawinski
CPC classification number: G05D16/2093 , F16K27/041 , F16K27/048 , F16K31/426 , G05D16/166 , Y10T137/0379 , Y10T137/0396 , Y10T137/8659 , Y10T137/86614
Abstract: A proportional motion control valve includes an electro-mechanical actuator that provides an infinitely controlled pressure setting in response to an electric signal applied to the electro-mechanical actuator. In another aspect, a proportional motion control valve includes a pilot-operated valve disposed intermediately with respect to a cage and a valve body to fluidly isolate an internal cavity of the valve body from a bore of the cage. The pilot-operated valve is subjected to a hydraulic opening force of pilot fluid that is present in the bore of the cage. A spring is disposed within the internal cavity of the valve body and arranged to subject the pilot-operated valve to a closing spring force.
