The invention 
        
            - The problem
                to be solved: 
 
                The main aim was to create an engine that
                converts directly the hydrostatic energy of
                liquids into rotational motion mechanical power. 
         
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            - Definition: 
 
                The object of the invention is a
                hydraulic-engine where the hydrostatic energy of
                the liquid introduced into its pressure area
                forces the rotary piston to develop a rotary
                movement and this way its axle delivers a useful
                mechanical power. 
         
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            - Presentation:
                
 
                The main parts of the invented engine
                construction are: the engine block with the
                sealing end-plates of the cylinder cavity and the
                bearing blocks, the rotary piston and the rotary
                control head. These parts are forming altogether
                the boundaries of the suction and the pressure
                cavities where the hydrostatic energy of the
                introduced liquid forces the rotary piston to
                develop a continuous and monodirectional rotary
                movement and this way its axle delivers a useful
                mechanical power. There is a one to one gear
                ratio forced coupling between the rotary piston
                and the rotary control head providing a proper
                coaction of these. Generally, two rotary pistons
                are built in into the hydraulic-engine with a 180
                degrees of difference between their angular
                positions to eliminate the effect of the
                deadzone. 
         
        
              
         
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            - Application: 
 
                In case of fluid medium it can primarily
                be used for the building of hydraulic-motors,
                stepless drives, break systems and high pressure
                pumps. 
         
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            - Advantages: 
 
                The moving parts of the construction are
                exclusively rotary moving components and this way
                its operation is not influenced negatively by the
                acceleration forces that are common in case of
                alternate longitudinally moving parts.
                Consequently, such machines can be built that
                have excellent specific operational indices. Its
                other significant advantage is that simple to
                manufacture with a low cost because its
                components have plane surfaces and cylindrical
                forms. 
         
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            - Stage of
                development: 
 
                A working model is available. 
         
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            - Documentation
                available: Yes
 
         
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        The inventor(s)
        
            - Self
                introduction: 
 
                The inventor is 61 years old, he is qualified
                mechanical engineer and he is an entrepreneur. 
         
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        The protection
            - Form: exhibition
                priority
 
            - Priority:
                04. May, 2000.
 
            - Countries
                where it is force: 
 
         
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        | Business
        intention: The inventor would like to sell the
        licence and he is looking for a joint development partner. | 
    
    
        Contact
            - Name: Sándor
                BOBÁLY
 
            - E-mail: genius@inventor.hu
 
            - Fax: +36-93 317-162
 
            - Address: H-8800
                Nagykanizsa, Zemplén Győző u. 1/b. Hungary
 
         
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