摘要:
A compound valve is provided which includes a body having a first heat-medium inflow port, a second heat-medium inflow port, a first or second heat-medium outflow port, a third or fourth heat-medium inflow port, a third heat-medium outflow port, a fourth heat-medium outflow port and a valve chamber; a cylindrical-shaped valve element having opening portions in its lateral side surface for allowing heat media to flow inside of the valve element, and also a partition member thereinside in the longitudinal direction; and a motor for controlling a rotation angle of the valve element, wherein the valve element is rotationally moved by the motor, and opening portions in the lateral side surface of the valve element communicate with either one of the first heat-medium inflow port or the second heat-medium inflow port, and with either one of the third heat-medium outflow port or the fourth heat-medium outflow port; two heat media having different properties flow adjacent to the partition member inside of the valve element; and, by controlling, by a rotation angle of the motor, areas of the communicating inflow ports and the opening portions, and those of the communicating outflow ports and the opening portions, the quantities of flow are controlled.
摘要:
A three-port valve that can be more accurately controlled using a simple structure. The three-port valve is provided with the following: a first elastic tube in which a liquid circulates; a first port which is a provision and discharge opening in the first elastic tube; a second elastic tube in which a liquid circulates; a second port which is a provision and discharge opening in the second elastic tube; a third port that links the first port and the second port; first circulation control means for deforming the first elastic tube so as to control the circulation of the liquid circulating in the first elastic tube; second circulation control means for deforming the second elastic tube so as to control the circulation of the liquid circulating in the second elastic tube; and an oscillator for driving the first circulation control means and the second circulation control means.
摘要:
An encapsulated valve system includes a first housing portion having a first facing surface, the first facing surface comprising a plurality of branch pathways formed as a recess within the first facing surface. The valve system further includes a second housing portion having a second facing surface, the second facing surface comprising a plurality of branch pathways formed as a recess within the second facing surface. A disposable conduit is configured to be interposed between the first and second housing portions and disposed within the recess of the first facing surface and the recess of the second facing surface. The disposable conduit is thus sandwiched between the first and second facing surfaces. A plurality of pinch valve actuators are mounted on one or both of the first housing portion and the second housing portion, the plurality of pinch valve actuators configured to pinch the disposable conduit at selective branch pathways.
摘要:
The invention relates to valve means for a flow pipe, the valve means (1) comprising a cylindrical or sleeve like body part (11) having a length (L) which is longer than the extension (I) of a flow opening (4) in the flow pipe (2). The body part (11) is fastenable to the flow pipe (2) or to a branch part (17) of the flow pipe (2) by connecting means (12,13), whereby the connecting means comprises first flange means (12) extending in a first direction of the flow pipe (2) and second flange means (13) extending in a direction opposite to the first direction of the flow pipe (2), said first and second flange means (12,13) being fastened to the body part (11). The body part (11) is made of a flexible structure in order to provide for the valve function in a simple manner.
摘要:
A method and apparatus is provided for controlling the flow rate of a fluid that flows through a fluid path including a resiliently deformable portion. A first roller (1) has a cutout (3) formed thereon on one side thereof, and a retainer (6) is arranged in parallel with the first roller. The resiliently deformable portion of the fluid path (14) is held between the first roller (1) and the retainer (6). The first roller (6) is rotatably supported by its rotary shaft (2). The first distance from the rotary shaft (2) to the outer wall (4) of the first roller (1) on the side facing opposite the resiliently deformable portion may be varied in response to the variation in the angle that occurs when the first roller (1) rotates about its rotary shaft (2). Thus, the second distance from the outer wall of the first roller on the side facing opposite the resiliently deformable portion to the retainer may be varied in response to the variation in the first distance, and the shape in cross section of the resiliently deformable portion may be varied according to the variation in the second distance. The flow rate of the fluid may be controlled by varying the shape in cross section of the resiliently deformable portion of the fluid path in this manner. The retainer may be replaced with the second roller (6) having the configuration symmetrical with the first roller and being rotatably supported.
摘要:
A valve for use in connection with microfluidic devices includes a safety feature such that flow is controlled even in the case of a loss of power, thus having applications in critical applications such as the precise delivery of drugs overtime. The valve may be used in connection with multiple tubes delivering drugs, and may be used with a pump, such as an electrochemical pump, to provide the force to move the fluids containing drugs for delivery. In certain applications, more than one medicine may be delivered and metered independently using a single pump with multiple reservoirs and valves.
摘要:
A three-port valve that can be more accurately controlled using a simple structure. The three-port valve is provided with the following: a first elastic tube in which a liquid circulates; a first port which is a provision and discharge opening in the first elastic tube; a second elastic tube in which a liquid circulates; a second port which is a provision and discharge opening in the second elastic tube; a third port that links the first port and the second port; first circulation control means for deforming the first elastic tube so as to control the circulation of the liquid circulating in the first elastic tube; second circulation control means for deforming the second elastic tube so as to control the circulation of the liquid circulating in the second elastic tube; and an oscillator for driving the first circulation control means and the second circulation control means.
摘要:
Drink preparing machine comprising a tank (10), a water supply system(2) comprising at least a section(5) for heated water and a section(6) for unheated water, a pump (4) for conveying water from the tank through the supply system(2) as far as a module (3) for preparing the drink, and a valve device (7) arranged so as to control the selective opening and closing off of the supply systemsections (5, 6). The valve device (7) is a peristaltic system comprising compression means compressing a tubeof each supply systemsectionand acting under the effect of elastic return means.
摘要:
Drink preparing machine comprising a tank (10), a water supply system(2) comprising at least a section(5) for heated water and a section(6) for unheated water, a pump (4) for conveying water from the tank through the supply system(2) as far as a module (3) for preparing the drink, and a valve device (7) arranged so as to control the selective opening and closing off of the supply systemsections (5, 6). The valve device (7) is a peristaltic system comprising compression means compressing a tubeof each supply systemsectionand acting under the effect of elastic return means.