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US 4,301,695 AGranted
Reciprocating piston machine
OwnerJohn H. Reiherinventor
Life of this patent
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OwnerJohn H. Reiherinventor
Estimating the term…
A reciprocating piston machine, shown as having a crankshaft with a crank-pin offset from the axis of rotation of the crankshaft and a connecting rod pivotally connected at the end thereof remote from the crank-pin to a piston reciprocatingly received within a cylinder, has first and second eccentric bearings journalled with respect to each other and operatively collectively carried by the crank-pin and situated as to be generally between the crank-pin and the cooperating end of the related connecting rod; one of the eccentric bearings is rotated generally with the crank-pin and completely within the cooperating end of the connecting rod by the crankshaft during each full rotation of the crankshaft while the crank-pin undergoes one full rotation with respect to the other of the eccentric bearings for each full rotation of the crankshaft.
In a reciprocating piston machine comprising a cylinder, a piston reciprocatingly received in said cylinder, a rotatable crankshaft having a first axis of rotation, said crankshaft comprising a crank-pin offset laterally from said first axis of rotation and having a second axis parallel to said first axis, a connecting rod having a first end pivotally mounted on said crank-pin about a third axis and pivotally connected at a second end thereof which is remote from said first end and said crank-pin to said piston, said third axis being offset laterally from said first axis, means for constraining said third axis to follow a predetermined locus as said crankshaft is rotated, said constraining means comprising relatively rotatable at least first and second eccentric bearing means operatively carried by said crank-pin as to be at least partly rotatable thereabout and at least partly rotatable within said first end of said connecting rod, and motion transmitting means operatively interconnecting said crankshaft and said connecting rod with said first and second eccentric bearing means, said motion transmitting means being effective to cause one of said rotatable eccentric bearing means to experience one complete revolution relative to said crank-pin for each complete revolution of said crankshaft about said first axis while experiencing only limited rotation and translation relative to said first end of said connecting rod, said motion transmitting means also being effective to cause the other of said at least first and second eccentric bearing means to experience one complete revolution relative to said first end of said connecting rod for each complete revolution of said crankshaft about said first axis while experiencing only limited rotation and translation relative to said crank-pin.
In a reciprocating piston machine comprising a cylinder, a piston reciprocatingly received in said cylinder, a rotatable crankshaft having a first axis of rotation, said crankshaft comprising a crank-pin offset laterally from said first axis of rotation and having a second axis parallel to said first axis, a connecting rod having a first end pivotally mounted on said crank-pin about a third axis and pivotally connected at a second end thereof which is remote from said first end and said crank-pin to said piston, said third axis being offset laterally from said first axis, means for constraining said third axis to follow a predetermined locus as said crankshaft is rotated, said constraining means comprising rotatable eccentric bearing means operatively carried by said crank-pin as to be rotatable thereabout and rotatable within said first end of said connecting rod, and motion transmitting means operatively interconnecting said crankshaft and said rotatable eccentric bearing means, said motion transmitting means being effective to cause said rotatable eccentric bearing means to experience one complete revolution relative to said second axis of said crank-pin for each complete revolution of said crankshaft about said first axis, said motion transmitting means comprising lever means fixedly connected to said eccentric bearing means and having a portion operatively connected to said crankshaft for driving rotation by said crankshaft.
In a reciprocating piston machine comprising a cylinder, a piston reciprocatingly received in said cylinder, a rotatable crankshaft having a first axis of rotation, said crankshaft comprising a crank-pin offset laterally from said first axis of rotation and having a second axis parallel to said first axis, a connecting rod having a first end pivotally mounted on said crank-pin about a third axis and pivotally connected at a second end thereof which is remote from said first end and said crank-pin to said piston, said third axis being offset laterally from said first axis, means for constraining said third axis to follow a predetermined locus as said crankshaft is rotated, said constraining means comprising rotatable eccentric bearing means operatively carried by said crank-pin as to be rotatable thereabout and rotatable within said first end of said connecting rod, motion transmitting means operatively interconnecting said crankshaft and said rotatable eccentric bearing means, said motion transmitting means being effective to cause said rotatable eccentric bearing means to experience one complete revolution relative to said second axis of said crank-pin for each complete revolution of said crankshaft about said first axis, said motion transmitting means comprising lever means having first and second operative ends, said first end being fixedly carried by said eccentric bearing means for rotation in unison with said eccentric bearing means, said second end being swingable in unison with rotation of said eccentric bearing means, and pivotal drive connecting means operatively interconnecting said crankshaft with said swingable second end whereby said crankshaft is effective for rotatably driving said eccentric bearing means during rotation of said crankshaft about said first axis.
In a reciprocating piston machine comprising a cylinder, a piston reciprocatingly received in said cylinder, a rotatable crankshaft having a first axis of rotation, said crankshaft comprising a crank-pin offset laterally from said first axis of rotation and having a second axis parallel to said first axis, a connecting rod having a first end pivotally mounted on said crank-pin about a third axis and pivotally connected at a second end thereof which is remote from said first end and said crank-pin to said piston, said third axis being offset laterally from said first axis, means for constraining said third axis to follow a predetermined locus as said crankshaft is rotated, said constraining means comprising rotatable eccentric bearing means operatively carried by said crank-pin as to be rotatable thereabout and rotatable within said first end of said connecting rod, and motion transmitting means operatively interconnecting said crankshaft and said rotatable eccentric bearing means, said motion transmitting means being effective to cause said rotatable eccentric bearing means to experience one complete revolution relative to said second axis of said crank-pin for each complete revolution of said crankshaft about said first axis, said eccentric bearing means comprising a first eccentric bearing and a second eccentric bearing, said first eccentric bearing and said crank-pin being relatively rotatable with respect to each other, and said second eccentric bearing and said first end of said connecting rod being relatively rotatable with respect to each other.
Dependencies are inferred from the claim text.