# US 10,309,545 B2 · Fluid control device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,545 B2 - Document ID: US10309545B2 - Status: Granted - Kind: B2 - Application number: 15/487,056 - Filed: 2017-04-13 - Published: 2018-01-18 - Granted: 2019-06-04 - Earliest claimed: 2016-07-13 - Assignees: Delta Electronics Int'l (Singapore) Pte Ltd - Applicants: Delta Electronics Int'l (Singapore) Pte Ltd - Inventors: Qian Liang; Song-Bin Huang; Wei-Yu Chung - Web page: https://patentgrep.com/patent/US10309545B2 ## CPC - F16K 11/076: with sealing faces shaped as surfaces of solids of revolution - F16K 11/074: with flat sealing faces - F16K 31/005: {Piezoelectric benders} - F16K 31/02: electric {(F16K31/004 takes precedence)}; magnetic - F16K 39/045: {of rotating or pivoting type} - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} ## Abstract A fluid control device includes a fluid manifold, a valve stator, a valve rotor and dual driving units. The fluid manifold includes microchannels connected with a sample reaction unit and fluid input channels connected with fluid sources. When the valve rotor is rotated to different positions, the fluid input channel is connected with at least one microchannel via through holes of the valve stator and a groove of the valve rotor. The first driving unit drives a rotation of the valve rotor. The second driving unit drives a motion of the valve rotor or the valve stator to adjust a distance between the valve rotor and the valve stator, so that when the valve rotor is rotating, the valve rotor and the valve stator are separated by a gap, and after the valve rotor is rotated to a predetermined position, the valve rotor is tightly contacted the valve stator. ## Claims ### Claim 1 A fluid control device connected with a sample reaction unit having multiple chambers to regulate fluid operations in a multi-fluid-system, the fluid control device comprising: a fluid manifold comprising a main body, plural microchannels and plural fluid input channels, wherein each of the plural microchannels penetrates through the main body and is connected with a corresponding chamber of the sample reaction unit, and the plural fluid input channels are connected with plural fluid sources; a rotary valve comprising a valve stator and a valve rotor, wherein the valve stator is disposed at a bottom of the fluid manifold and comprising plural through holes, the valve rotor is disposed at a bottom of the valve stator and comprising at least one groove, and when the valve rotor is rotated to different positions, the fluid input channel is connected with at least one of the plural microchannels via the through holes of the valve stator and the groove of the valve rotor to provide at least one fluid path and enable fluid provided by the fluid source to be directed to the corresponding chamber of the sample reaction unit through the fluid path and thus regulate the fluid operation of the corresponding chamber; a first driving unit connected with and driving a rotation of the valve rotor; and a second driving unit connected with and driving a motion of at least one of the valve rotor and the valve stator to adjust a distance between the valve rotor and the valve stator, so that when the valve rotor is rotating, the valve rotor and the valve stator are separated by a gap, and after the valve rotor is rotated to a predetermined position, the valve rotor is tightly contacted the valve stator. ### Claim 2 (depends on 1) The fluid control device according to claim 1 wherein each of the first driving unit and the second driving unit comprises a driving component and a transmission component. ### Claim 3 (depends on 2) The fluid control device according to claim 2 wherein the driving component of the first driving unit is a stepped motor having a size not larger than 15 mm. ### Claim 4 (depends on 2) The fluid control device according to claim 2 wherein the transmission component of the first driving unit comprises a worm and a gear. ### Claim 5 (depends on 2) The fluid control device according to claim 2 wherein the transmission component of the second driving unit comprises a lead screw and a sliding nut. ### Claim 6 (depends on 2) The fluid control device according to claim 2 wherein the driving component is a motor, an electromagnet, a thermal expansion unit, an optical induced actuator, a pneumatic component or a piezoelectric component. ### Claim 7 (depends on 2) The fluid control device according to claim 2 wherein the transmission component is a gear, a rack, a belt, a chain, a screw or combinations thereof. ### Claim 8 (depends on 1) The fluid control device according to claim 1 further comprising a rotor connector connected between the valve rotor and the first driving unit. ### Claim 9 (depends on 1) The fluid control device according to claim 1 wherein the material of the valve rotor and the valve stator is Teflon, Nylon, rubber, polymer compound, silicone, metal, plastic, polymer, glass, ceramic or combinations thereof. ### Claim 10 (depends on 1) The fluid control device according to claim 1 wherein the valve stator and the valve rotor respectively includes plural regions corresponding to the plural fluid sources for regulating fluid path switching of the corresponding fluid sources. ### Claim 11 (depends on 1) The fluid control device according to claim 1 wherein the plural fluid sources includes a fluid source with positive pressure and a fluid source with negative pressure. ### Claim 12 (depends on 1) The fluid control device according to claim 1 wherein the valve stator further comprises at least one groove disposed on a top surface or a bottom surface of the valve stator and is directly connected with at least one of the plural through holes, and at least parts of the groove and the through holes are communicated with the plural microchannels and plural fluid input channels of the fluid manifold. ### Claim 13 (depends on 12) The fluid control device according to claim 12 wherein the at least one groove of the valve stator includes at least one first groove and at least one second groove, the at least one first groove is disposed on the top surface of the valve stator, and the at least one second groove is disposed on the bottom surface of the valve stator. ### Claim 14 (depends on 13) The fluid control device according to claim 13 wherein the at least one first groove of the valve stator includes plural first grooves, and the plural first grooves are extended along concentric circles with different radiuses. ### Claim 15 (depends on 13) The fluid control device according to claim 13 wherein the plural through holes of the valve stator includes plural first through holes and plural second through holes, the plural first through holes are directly connected with the at least one first groove, the plural second through holes are not directly connected with the at least one first groove, and each of the at least one first groove is directly connected with at least two of the plural first through holes. ### Claim 16 (depends on 15) The fluid control device according to claim 15 wherein each of the at least one second groove of the valve stator is directly connected with at least one of the plural second through holes. ### Claim 17 (depends on 1) The fluid control device according to claim 1 wherein the at least one groove of the valve rotor is disposed on a top surface of the valve rotor. ### Claim 18 (depends on 1) The fluid control device according to claim 1 further comprising a gasket sandwiched between the fluid manifold and the valve stator. ### Claim 19 (depends on 18) The fluid control device according to claim 18 wherein the gasket includes plural through holes, which are connected with the plural microchannels and the plural fluid input channels of the fluid manifold. ### Claim 20 (depends on 1) The fluid control device according to claim 1 wherein the sample reaction unit is a sample cartridge or a microfluidic chip.