Twin piston power transmission mechanism with a bent link

Abstract

A twin piston power transmission mechanism with a bent link, the end of the link connecting with a cylinder is a bent arm, the link has thereon for a first piston rod and a second piston rod each a bushing hole to respectively mount a main piston and a secondary piston of a piston set, the bushing hole for the first piston rod is deviated from the shank of the link; a movable connecting piece is provided between the bushing hole for the first piston rod and the main piston to make connection of the piston with the link; when the piston is raised to an upper dead point, the accelerating power at the beginning of lowering the piston will generate a component force in a tangential direction of biased circular motion of a driving wheel by deviation of the bushing hole for the first piston rod from the shank of the link. Thereby, the driving wheel immediately obtains an accelerating power in the tangential direction, and running of the driving wheel can be smoother; power of the piston set can thus be completely developed.

1 . A twin piston power transmission mechanism with a bent link, said link connects a driving wheel with a piston, when said piston bears internal pressure of a cylinder to run said piston to and fro, its power turns the reciprocating linear movement of said piston into a rotating movement of said driving wheel through said link; said mechanism is characterized by: 
 an end of said link in connecting with said cylinder is designed to be in the form of a bent arm, so that a bushing hole provided for a piston rod to receive a piston on said end of said link is arranged to be a suitable angle deviated from said shank of said link; a movable connecting piece is provided between said bushing hole for said piston rod and said piston to make connection of said piston with said link, so that said link has a swinging action against said piston when said driving wheel is rotated; and when said piston is raised to its upper dead point, accelerating power at the beginning of lowering said piston generates a component force in a tangential direction of biased circular motion of said driving wheel by deviation of said bushing hole for said piston rod from said shank of said link, thereby, said driving wheel immediately obtains an accelerating power in said tangential direction of said circular motion, and running of said driving wheel is smoother; power of said piston can thus be completely developed.    
     
     
         2 . A twin piston power transmission mechanism with a bent link, said link connects a driving wheel with a piston set including two pistons, i.e., a main piston and a secondary piston, when said piston set bears internal pressure of a cylinder to run said piston set to and fro, its power turns the reciprocating linear movement of said piston set into a rotating movement of said driving wheel through said link; said mechanism is characterized by: 
 an end of said link in connecting with said cylinder is designed to be in the form of a bent arm, a bushing hole for a first piston rod and a bushing hole for a second piston rod are provided on said link to allow respectively mounting of said main piston and said secondary piston, said bushing hole for said first piston rod is arranged a suitable angle deviated from said shank of said link; a movable connecting piece is provided between said bushing hole for said first piston rod and said main piston to make connection of said main piston with said link; and said main piston on the upper portion of said piston set accepts or transmits power when pressure in said cylinder changes, while said secondary piston on the lower portion of said piston set is a hollow piston used to allow extending of said link therethrough and to swing about said second piston rod of said secondary piston, so that said secondary piston forms a steady link swinging action; and when said piston set is raised to its upper dead point, accelerating power at the beginning of lowering said piston set generates a component force in a tangential direction of biased circular motion of said driving wheel by deviation of said bushing hole for said first piston rod from said shank of said link, thereby, said driving wheel immediately obtains an accelerating power in said tangential direction of said circular motion, and running of said driving wheel is smoother; power of said piston set can thus be completely developed.    
     
     
         3 . A twin piston power transmission mechanism with a bent link as in  claim 1 , wherein, 
 a bushing hole for mounting a connecting piece is provided on said piston in a deviated way, so that when said piston is raised to its upper dead point, said connecting piece between said piston and said link is parallel to the action direction of said piston, thereby, when said piston is lowered, said component force of said accelerating power is generated on one side of said driving wheel to be able to forwardly run said driving wheel.    
     
     
         4 . A twin piston power transmission mechanism with a bent link as in  claim 2 , wherein, 
 a bushing hole for mounting said connecting piece is provided on said main piston in a deviated way, so that when said piston set is raised to its upper dead point, said connecting piece between said main piston and said link is parallel to the action direction of said piston, thereby, when said piston set is lowered, said component force of said accelerating power is generated on one side of said driving wheel to be able to forwardly run said driving wheel.    
     
     
         5 . A twin piston power transmission mechanism with a bent link as in  claim 1 , wherein, 
 said cylinder and the axis of said driving wheel are arranged in a mutually deviated mode, so that when said piston is raised to said upper dead point, said shank of said link is not aligned with the direction of movement of said piston nor with said axis of said driving wheel, thereby damage rate of said link is lowered.    
     
     
         6 . A twin piston power transmission mechanism with a bent link as in  claim 2 , wherein, 
 strokes of movements of said main piston and said secondary piston in said cylinder are separated into different sections to suitably make a deviation between said main and said secondary pistons, so that the action directions of said main piston and said secondary piston are not in an identical axis, hence abrasion on the inner wall of said cylinder is reduced, and boring operation for said different sections with different degrees of abrasion is separately carried on to lower cost of maintaining said cylinder.