Patent Publication Number: US-2009229934-A1

Title: Adjustable hydraulic damper for vehicles

Description:
BACKGROUND OF INVENTION 
     (1). Field of the Invention 
     The present invention relates generally to an adjustable hydraulic damper for vehicles, and more particularly to an innovative one which allows for oil compression and output through the extrusion of piston and piston rod in the hydraulic damper, thus generating continuously kinetic energy for the vehicle applications. 
     (2). Description of the Prior Art 
     Various countries are making efforts to research and develop alternative energy resources owing to growing oil shortage and air pollution. And, the vehicles are also a major contributing factor to oil consumption. For this reason, the leading auto-manufacturers strive for R&amp;D of new vehicles with alternative power sources, such as: LPG cars, diesel vehicles, hybrid vehicles, solar vehicles and hydrogen-powered vehicles, with major purpose of reducing oil consumption or minimizing environmental pollution and efficient energy conversion with other alternative energy resources. 
     However, due to poorer performance as compared with oil, the existing alternative energy resources are provided only as an auxiliary means, of which oil-electricity conversion is a preferred option. But, an improvement is required for converting the kinetic energy generated during the running process of vehicles into power supply. 
     SUMMARY OF THE INVENTION 
     Thus, to overcome the aforementioned problems of the prior art, the inventor has provided an improved adjustable hydraulic damper for vehicles. With the kinetic energy generated from extrusion of piston and piston rod in the hydraulic damper, it allows for compression and output of oil by the hydraulic damper, and provides continuously power to the vehicles from kinetic energy generated by high-pressure oil. 
     The another purpose of the present invention is to enable circulating oil feed of oil tank based on the extrusion principle of piston and piston rod in the hydraulic damper, without the thrusting of any pump. Other than kinetic energy that&#39;s converted and supplied continuously to the vehicle components, it is possible to save the cost of the mechanism and increase its commercial value. 
     The other purpose of the present invention is to control the hydraulic damping and oil output via adjusting screws installed on the outlet valve. So, the operators could make quick adjustment, where applicable, to meet various operating requirements. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows a perspective view of the present invention. 
         FIG. 2  shows schematic view  1  of inlet and outlet operation of the present invention. 
         FIG. 3  shows schematic view  2  of inlet and outlet operation of the present invention. 
         FIG. 4  shows an application view of the present invention. 
         FIG. 5  shows a flow process diagram of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The structural composition, technical means and efficacy of the present invention will be more readily understood with reference to the accompanying drawings. 
     Referring to  FIG. 1  (a perspective view), a set of inlet and outlet check valves  12 ,  13 ,  14 ,  15  are separately arranged at upper and lower sides of the hydraulic damper body  10 ; and the outlet valves  13 ,  15  are separately fitted with adjusting screws  17 ,  18 ; the piston  11  and piston rod  16  of hydraulic damper body  10  are shiftable linkage components. 
     Referring to  FIGS. 2 and 3  (schematic views of oil inlet and outlet), when the piston  11  and piston rod  16  of the hydraulic damper body  10  squeeze upwards, the upper inlet valve  12  and lower outlet valve  15  are in a closed state, the oil liquid is output if upper outlet valve  13  is opened, and then flows into hydraulic damper body  10  if the lower inlet valve  14  is opened simultaneously; conversely, when the piston  11  and piston rod  16  of the hydraulic damper body  10  squeeze downwards, the lower inlet valve  14  and upper outlet valve  13  are in a closed state, the oil liquid is output if lower outlet valve  15  is opened, and then flows into hydraulic damper body  10  if the upper inlet valve  12  is opened simultaneously; the oil liquid is pushed circularly based on the extrusion and drawing-thrusting principle of the piston  11  and piston rod  16 ; additionally, the adjusting screws  17 ,  18  on the upper and lower outlet valves  13 ,  15  are used to control the hydraulic damping and oil output of hydraulic damper body  10 . 
     Referring also to FIG.  4 (an application view of the present invention), the hydraulic damper body  10  is coupled with the oil tank  20 , etc, via inlet and outlet check valves  12 ,  13 ,  14 ,  15  on the upper and lower sides. 
     Referring to  FIG. 5  (a flow process diagram) based on  FIG. 4 , the oil liquid in the oil tank  20  is compressed and output by the hydraulic damper body  10  through the extrusion of piston  11  and piston rod  16  of the hydraulic damper body  10 , and then fed back circularly to the oil tank  20  after application; when the vehicle is under a running state, the kinetic energy generated by the hydraulic device could be provided continuously to the vehicles through the extrusion of piston  11  and piston rod  16  of the hydraulic damper body  10 . 
     Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.