Abstract:
An apparatus having a member that revolves about a remote center of motion (RCM) and a base link coupled to a mounting fixture. A first and second link are pivotably coupled to the member at respective distances from the RCM and are translatable relative to the base link along a first direction, at a fixed ratio of displacement. The ratio of respective distances equals a fixed ratio of displacement. The apparatus has a translational motion generator for a first and second element along parallel opposing directions. The translational motion generator is disposed on the first link and enables motion parallel to the first direction. The base link is fixed in position, the first element is fixed to the base link and the second element is fixed to the second link, such that the first and second link may translate relative to the base link with fixed ratio of displacement.
Abstract:
The invention relates to a push device (8) which includes a rotary pad (10) in which the inner periphery (11) is off-center relative to the outer periphery (12) and applied to the rear (9) of the rack (3) which is thereby pushed towards the teeth of the steering pinion (5). A clearance compensation mechanism (17) includes a thrust member (19) pressed against a radial arm (18) of the pad (10) by a compression spring (20) inserted between said member and an element (23) secured to the support (13) of the pad (10). A mobile stop (21) rotatably mounted relative to the element (23) comprises toothings having staggered gear teeth cooperating with notches of the thrust member (19). The stop (21) is connected to the element (23) by means of a torsion spring (22). The notches successively cooperate with the staggered teeth.
Abstract:
The invention provides an actuator apparatus which may be used to adjust flow of fluid or air in conjunction with a rack and pinion system. The device is able to rotate both vertically and horizontally via a mechanism that transforms axial movement into rotary movement. The device is useful in a range of circumstances where required specific and controllable rotary motion is required.
Abstract:
A machine (1) for preparing a beverage comprises: a first part (20) and a second part (30) movable relative to the first part; a motor (51,51′) having a drive member (510, 511) such as a rotating drive axis; one or more mechanical transmission members (52; 521-523; 524-526) for transmitting a movement of the drive member to the movable part (30) for moving the movable part; and a transmission frame (200) for supporting the motor and the movable transmission member(s). The transmission frame is an integral component (200) on which the motor and the transmission members are directly mounted.
Abstract:
A continuously variable transmission includes: an input movement, a control system, a continuously variable reciprocating movement, a first holder, a second holder, an output gear. The holders having the reciprocating movement. Each of the holders having a linearly movable teeth. The movable teeth are perpendicularly oscillated to the reciprocating movement. Each of the movable teeth having an internal end and an exposed end. The exposed end having a first slope and a second slope. The first slope having a greater slope than the second slope.
Abstract:
The invention relates to mechanical engineering, in particular to piston machines and mechanisms for converting the movement of the pistons thereof into shaft rotation. The technical result of the invention involves increasing the operational reliability, extending the service life, improving the specific mass and dimensional characteristics and enhancing the efficiency of a machine. The essence of the invention is that the piston and the crank of a piston machine are interconnected by means of a hinged joint with at least a flat hinge which enables the piston to self-center along the cylinder surface owing to the movement of the piston with respect to the crank in any direction on a plane that intersects the longitudinal axis of the cylinder. Side bearing elements are mounted on the interacting parts of the body and the crank; furthermore, the connection between the opposite parts of the crank and the coupling elements is designed in such a way that the movement of one part of the crank with respect to the opposite part thereof is limited in the direction away from the axis of rotation of the shaft along the reciprocating motion of the crank in order to ensure a specified distance between the contact surfaces of the working bearing elements of the crank when the machine is in operation. Furthermore, a preliminary load is created between the contacting surfaces of the working bearing elements and rollers.
Abstract:
A butterfly valve comprises a valve body, a seat ring mounted on a flow passage of the valve body, a disc rotatably mounted to the valve body and configured to open and close the flow passage by being attached to the seat ring; and a driving device configured to linearly move and rotate the disc so as to prevent interference between the disc and the seat ring when the flow passage of the valve body is open and closed.
Abstract:
An actuating device has a drive element with a cylinder (1) and a piston (2) having a piston rod (3). A toothed rack (4) is provided outside the cylinder (1) on the piston rod (3). The toothed rack (4) is implemented to cooperate with a gear element (5). An actuating element (6), pivotable in relation to the drive element, is situated in a rotationally-fixed manner with the gear element (5). An intermediate gear element (7) is situated between the cylinder (1) and the gear element (5). The intermediate gear element (7) cooperates, on one side, with the toothed rack (4) and, on the other side, with the gear element (5).
Abstract:
An engine arrangement comprising a first assembly including a first piston in a first cylinder interconnected with a second assembly including a second piston in a second cylinder. Each of the first and second assemblies include an inlet valve for supplying a fuel mixture, and an outlet valve for removing exhaust gases. The first and second assemblies being adapted for cooperation with a gear unit to convert a translation movement into a rotary movement. The engine arrangement so includes two additional assemblies including a third piston in a third cylinder interconnected with a fourth piston in a fourth cylinder and associated valves. The two additional assemblies being adapted for cooperation with the gear unit to convert a translation movement into a rotary movement. An outlet valve of the first cylinder is connectable to an inlet valve of a third cylinder, and an outlet valve of the second cylinder is connectable to an inlet valve of the fourth cylinder, and the outlet valves of the third and the fourth cylinders are intended for removing exhaust gases.
Abstract:
The invention relates to mechanical engineering, in particular to piston machines and mechanisms for converting the movement of the pistons thereof into shaft rotation. The technical result of the invention involves increasing the operational reliability, extending the service life, improving the specific mass and dimensional characteristics and enhancing the efficiency of a machine. The essence of the invention is that the piston and the crank of a piston machine are interconnected by means of a hinged joint with at least a flat hinge which enables the piston to self-center along the cylinder surface owing to the movement of the piston with respect to the crank in any direction on a plane that intersects the longitudinal axis of the cylinder. Side bearing elements are mounted on the interacting parts of the body and the crank; furthermore, the connection between the opposite parts of the crank and the coupling elements is designed in such a way that the movement of one part of the crank with respect to the opposite part thereof is limited in the direction away from the axis of rotation of the shaft along the reciprocating motion of the crank in order to ensure a specified distance between the contact surfaces of the working bearing elements of the crank when the machine is in operation. Furthermore, a preliminary load is created between the contacting surfaces of the working bearing elements and rollers.