Abstract: The fluid transfer connector includes: a plug including a plug body, the plug body including a fluid channel; a socket including a socket body, the socket body including a fluid channel that communicates with the fluid channel of the plug body when the plug is connected to the socket; and a driving mechanism configured to adjust a distance between the plug body and the socket body. The plug body and the socket body can be stopped by the driving mechanism at an initial position where the plug body and the socket body are spaced from and face each other, a connecting position where the fluid channel of the plug body communicates with the fluid channel of the socket body, and an intermediate position between the initial position and the connecting position.

Abstract: A tube pump system is provided, which includes a pair of roller units which are rotated around the axis line from a contact position to a separate position in a state where the pair of roller units compress the tube, a pair of drive units which rotate the pair of roller units respectively, and a control unit which controls each of the pair of drive units, wherein the control unit controls each of the pair of drive units such that, when one of the pair of roller units passes the separate position, an angular velocity of the other of the pair of roller units toward the separate position is gradually decreased.

Abstract: Provided is a joint structure comprising a main body, a tubular part that is formed in a tubular shape to protrude from the main body along an axis and holds an outer peripheral surface of the resin-made tube, and a protrusion that is formed in a shaft shape to protrude from the main body along the axis and forms, between the protrusion and the tubular part, an insertion groove in which the resin-made tube is inserted, the main body and the protrusion are formed with a coupling channel extending along the axis and coupling a liquid transferring channel and another channel, and a tip of the protrusion is disposed at a position closer to the main body than a tip of the tubular part.

Abstract: An exhaust gas purifier including a casing, SCR catalysts (comprising a first SCR catalyst and a second SCR catalyst), a first backflow prevention plate, and a second backflow prevention plate. In the casing, at least a part of the catalyst passage and at least a part of the bypass passage are formed. The SCR catalysts are disposed in the catalyst passage and selectively reduce NOx included in an exhaust gas flowing in the catalyst passage. The first backflow prevention plate prevents or reduces a backflow of an exhaust gas from a second exhaust passage to the catalyst passage.

Abstract: To provide a tube pump which includes: a drive mechanism including a first roller unit and a second roller unit which rotate about an axis line while being in contact with a tube having elasticity, and a first drive unit and a second drive unit which cause the first roller unit and the second roller unit to rotate independently about the axis line; a holding mechanism which holds the tube in an arcuate shape about the axis line; and an attachment mechanism which detachably attaches the holding mechanism to the drive mechanism.

Abstract: An exhaust gas purifier including a casing, SCR catalysts (comprising a first SCR catalyst and a second SCR catalyst), a first backflow prevention plate, and a second backflow prevention plate. In the casing, at least a part of the catalyst passage and at least a part of the bypass passage are formed. The SCR catalysts are disposed in the catalyst passage and selectively reduce NOx included in an exhaust gas flowing in the catalyst passage. The first backflow prevention plate prevents or reduces a backflow of an exhaust gas from a second exhaust passage to the catalyst passage.

Abstract: The fluid transfer connector includes: a plug including a plug body, the plug body including a fluid channel; a socket including a socket body, the socket body including a fluid channel that communicates with the fluid channel of the plug body when the plug is connected to the socket; and a driving mechanism configured to adjust a distance between the plug body and the socket body. The plug body and the socket body can be stopped by the driving mechanism at an initial position where the plug body and the socket body are spaced from and face each other, a connecting position where the fluid channel of the plug body communicates with the fluid channel of the socket body, and an intermediate position between the initial position and the connecting position.

Abstract: There is provided a tube pump system including: a pair of roller units rotated around an axis line from a contact position to a separate position; a pair of drive units rotating the pair of roller units respectively; and a control unit controlling each of the pair of drive units. A pipe having flexibility is connected to an outflow-side end portion of the tube, and the pipe maintains a pressure of a liquid flowing through the inside of the pipe at a first predetermined pressure higher than an atmospheric pressure. The control unit controls each of the pair of drive units such that a pressure of the liquid in the tube closed due to a contact of the pair of roller units is increased to a second predetermined pressure when one of the pair of roller units passes the separate position.

Abstract: Provided is a flow rate adjustment device including: a diaphragm integrated valve body; a valve seat section provided around an inflow opening and including a valve seat surface disposed at a position facing a valve surface; and a transfer mechanism configured to cause the diaphragm integrated valve body to move along an axis line to adjust a distance between the valve surface and the valve seat surface. The valve surface 11a and the valve seat surface form an angle, which is an acute angle, with the axis line and are disposed in parallel.

Abstract: A tube pump system is provided, which includes a pair of roller units which are rotated around the axis line from a contact position to a separate position in a state where the pair of roller units compress the tube, a pair of drive units which rotate the pair of roller units respectively, and a control unit which controls each of the pair of drive units, wherein the control unit controls each of the pair of drive units such that, when one of the pair of roller units passes the separate position, an angular velocity of the other of the pair of roller units toward the separate position is gradually decreased.

Abstract: There is provided a Karman vortex flowmeter including: a body inside which a flow passage and a Karman vortex generation column are formed; and a flow rate measurement unit that measures Karman vortexes generated by the Karman vortex generation column to thereby obtain a flow rate of a fluid, in which the flow rate measurement unit includes: a piezoelectric element; a piezoelectric element holder that is attached to the body so that the piezoelectric element is arranged in a flow passage; and a thin film part that is formed of a material with higher corrosion resistance than an electrode of the piezoelectric element, the piezoelectric element holder houses the piezoelectric element in a state where the piezoelectric element is sandwiched by a pair of plate-shaped parts integrally formed by a resin material, and in which the thin film part is arranged between the plate-shaped parts and the electrode.

Abstract: Provided is a flow rate adjustment device including: a valve body portion configured to be movable along an axis line; a body portion having a valve bore and an upstream-side fluid chamber formed therein, the valve body portion being inserted into the valve bore, the upstream-side fluid chamber being configured to circulate a fluid; and a thin film-like first diaphragm portion which is coupled to the valve body portion and configured to isolate the upstream-side fluid chamber from a spring accommodation chamber adjacent to the upstream-side fluid chamber. The first diaphragm portion is formed of a conductive fluororesin material including a fluororesin material and carbon nanotubes dispersed in the fluororesin material, and the conductive fluororesin material has a volume resistivity of more than 1.0×103 ?·cm and less than 1.0×104 ?·cm.

Abstract: There is provided a tube pump including: a first roller unit and a second roller unit that rotate around an axis while being in contact with a tube; a drive shaft coupled to the first roller unit; a drive cylinder arranged on an outer peripheral side of the drive shaft and coupled to the second roller unit; a first drive unit that rotates a first drive shaft around a first axis; a second drive unit that rotates a second drive shaft around a second axis; and a transmission mechanism that transmits a drive force of the second drive shaft to an outer peripheral surface of the drive cylinder, in which the first drive unit and the second drive unit are arranged so that a first arrangement position of the first drive unit and a second arrangement position of the second drive unit in a first axis direction overlap with each other.

Abstract: To provide a tube pump which includes: a drive mechanism including a first roller unit and a second roller unit which rotate about an axis line while being in contact with a tube having elasticity, and a first drive unit and a second drive unit which cause the first roller unit and the second roller unit to rotate independently about the axis line; a holding mechanism which holds the tube in an arcuate shape about the axis line; and an attachment mechanism which detachably attaches the holding mechanism to the drive mechanism.

Abstract: Provided is a flow rate adjusting device in which a body portion having a valve hole includes: an annular wall portion that partitions a downstream-side fluid chamber into an inside flow channel annularly formed around a valve body portion and an outside flow channel annularly formed at an outside of the inside flow channel; an outflow hole that guides the fluid circulating in the outside flow channel to an outflow-side flow channel; and a blocking wall that blocks the fluid having reached the outflow hole from flowing around the outside flow channel. The annular wall portion includes a communication flow channel that guides the fluid from the inside flow channel to the outside flow channel. The communication flow channel guides the fluid to a location that is adjacent to the blocking wall and is isolated from the outflow hole by the blocking wall.

Abstract: There is provided a tube pump system including: a pair of roller units rotated around an axis line from a contact position to a separate position; a pair of drive units rotating the pair of roller units respectively; and a control unit controlling each of the pair of drive units. A pipe having flexibility is connected to an outflow-side end portion of the tube, and the pipe maintains a pressure of a liquid flowing through the inside of the pipe at a first predetermined pressure higher than an atmospheric pressure. The control unit controls each of the pair of drive units such that a pressure of the liquid in the tube closed due to a contact of the pair of roller units is increased to a second predetermined pressure when one of the pair of roller units passes the separate position.

Abstract: Provided is a flow rate adjustment device including: a valve body portion configured to be movable along an axis line; a body portion having a valve bore and an upstream-side fluid chamber formed therein, the valve body portion being inserted into the valve bore, the upstream-side fluid chamber being configured to circulate a fluid; and a thin film-like first diaphragm portion which is coupled to the valve body portion and configured to isolate the upstream-side fluid chamber from a spring accommodation chamber adjacent to the upstream-side fluid chamber. The first diaphragm portion is formed of a conductive fluororesin material including a fluororesin material and carbon nanotubes dispersed in the fluororesin material, and the conductive fluororesin material has a volume resistivity of more than 1.0×103 ?·cm and less than 1.0×104 ?·cm.

Abstract: Provided is a flow rate adjusting device in which a body portion having a valve hole includes: an annular wall portion that partitions a downstream-side fluid chamber into an inside flow channel annularly formed around a valve body portion and an outside flow channel annularly formed at an outside of the inside flow channel; an outflow hole that guides the fluid circulating in the outside flow channel to an outflow-side flow channel; and a blocking wall that blocks the fluid having reached the outflow hole from flowing around the outside flow channel. The annular wall portion includes a communication flow channel that guides the fluid from the inside flow channel to the outside flow channel. The communication flow channel guides the fluid to a location that is adjacent to the blocking wall and is isolated from the outflow hole by the blocking wall.

Abstract: Provided is a flow rate adjustment device including: a diaphragm integrated valve body; a valve seat section provided around an inflow opening and including a valve seat surface disposed at a position facing a valve surface; and a transfer mechanism configured to cause the diaphragm integrated valve body to move along an axis line to adjust a distance between the valve surface and the valve seat surface. The valve surface 11a and the valve seat surface form an angle, which is an acute angle, with the axis line and are disposed in parallel.

Abstract: In the relief valve, an annular convex portion 16a that is convexed in a direction in which a valve element 5a moves away from a valve hole 17 along a center axis of the valve hole 17 and that is arranged around the valve hole 17 is formed in a valve chamber 16, an annular concave portion 5d that is concaved in the direction in which the valve element 5a moves away from the valve hole 17 is formed in the valve element 5a, and in a shut-off state, the annular convex portion 16a is accommodated in the annular concave portion 5d, and an annular channel 19 that extends in a direction of the center axis is formed between an outer peripheral surface 16b of the annular convex portion 16a and an inner peripheral surface 5e of the annular concave portion 5d.