IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0304542
(2011-11-25)
|
등록번호 |
US-8622605
(2014-01-07)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
▼
A fluid mixing device is productive, maintainable and improved in operability and reliability even without high accuracy pressure control. A fluid mixing device includes a mixing tank, supply tanks, mixing tank flow channels, valves, and branch flow channels. The mixing tank mixes at least two liqui
A fluid mixing device is productive, maintainable and improved in operability and reliability even without high accuracy pressure control. A fluid mixing device includes a mixing tank, supply tanks, mixing tank flow channels, valves, and branch flow channels. The mixing tank mixes at least two liquids. Each supply tank is provided for each of the liquids and supplies each liquid to the mixing tank. Each mixing tank flow channel connects each supply tank to the mixing tank. Each valve is arranged in each of the mixing tank flow channels. Each branch flow channel is connected to each of the mixing tank flow channels and is connected from the one mixing tank flow channel to the valve in the other mixing tank flow channel. Further, when the valve has pressure applied thereto from the liquid passing through the branch flow channel, the valve closes the mixing tank flow channel.
대표청구항
▼
1. A fluid mixing device comprising: a mixing tank for mixing at least two liquids;a plurality of supply tanks, one of which supply tanks is provided for each of said at least two liquids and supplies each of said liquids to the mixing tank;mixing tank flow channels, each of which mixing tank flow c
1. A fluid mixing device comprising: a mixing tank for mixing at least two liquids;a plurality of supply tanks, one of which supply tanks is provided for each of said at least two liquids and supplies each of said liquids to the mixing tank;mixing tank flow channels, each of which mixing tank flow channels connects a corresponding supply tank to the mixing tank;a valve arranged in each of the mixing tank flow channels;branch flow channels, each of which branch flow channels is connected to a corresponding mixing tank flow channel; andflow channel selection mechanisms respectively provided at a portion where each of the branch flow channels is connected to a corresponding one of the mixing tank flow channels,wherein each of the branch flow channels is connected from the flow channel selection mechanism in one of the mixing tank flow channels to the valve in another of the mixing tank flow channels,wherein in a case where pressure of the liquid supplied from one of the supply tanks does not reach a specified pressure, the flow channel selection mechanism, associated with the one supply tank, limits a flow of the liquid supplied from the one supply tank to a direction of the branch flow channels, and in a case where pressure of the liquid supplied from the one supply tank exceeds the specified pressure, the flow channel selection mechanism, associated with the one supply tank, allows a flow of the liquid supplied from the one supply tank also to a direction of the mixing tank via the corresponding mixing tank flow channel, andwherein when each valve has pressure applied thereto from the liquid passing through a corresponding one of the branch flow channels, the valve closes the corresponding mixing tank flow channel. 2. The fluid mixing device as claimed in claim 1, wherein the flow channel selection mechanism includes one input flow channel, which corresponds to a flow channel portion communicating with a supply tank side of the mixing tank flow channel, and at least two output flow channels, which correspond to a flow channel portion communicating with the branch flow channel and a flow channel portion communicating with a mixing tank side of the mixing tank flow channel, respectively, andwherein the output flow channels have flow resistances different from each other. 3. The fluid mixing device as claimed in claim 2, wherein the output flow channels are constructed in flow channel widths different from each other. 4. The fluid mixing device as claimed in claim 2, wherein the fluid mixing device is constructed by bonding at least two sheets to each other, andwherein the input flow channel and the output flow channels of the flow channel selection mechanism are constructed of portions in which the sheets are not bonded to each other. 5. The fluid mixing device as claimed in claim 1, wherein the flow channel selection mechanism is constructed of at least one flexible material. 6. The fluid mixing device as claimed in claim 1, wherein the fluid mixing device is constructed by bonding at least three sheets to each other and, wherein of the three sheets, a center sheet has a through hole formed by cutting. 7. A fluid mixing device, comprising: a mixing tank for mixing a first liquid with a second liquid which is different from first liquid;a first supply tank for supplying the first liquid;a second supply tank for supplying second liquid;a first mixing tank flow channel connected between the first supply tank and a first inlet of the mixing tank, the first mixing tank flow channel for feeding the first liquid from the first supply tank to the mixing tank;a second mixing tank flow channel connected between the second supply tank and a second inlet of the mixing tank, the second mixing tank flow channel for feeding the second liquid from the second supply tank to the mixing tank;a first valve located in the first mixing tank flow channel and arranged to prevent a flow from the mixing tank to the first supply tank;a second valve located in the second mixing tank flow channel and arranged to prevent a flow from the mixing tank to the second supply tank;a first flow channel selection mechanism located in the first mixing tank flow channel;a second flow channel selection mechanism located in the second mixing tank flow channel;a first branch flow channel connected to the first flow channel selection mechanism and to the second valve, thereby branching from the first mixing tank flow channel to the second mixing tank flow channel; anda second branch flow channel connected to the second flow channel selection mechanism and to the first valve, thereby branching from the second mixing tank flow channel to the first mixing tank flow channel, wherein,when pressure of the first liquid supplied from the first supply tank reaches a first specified pressure, the first flow channel selection mechanism limits the flow of the first liquid supplied from the first supply tank to only a direction of the first branch flow channel, andwhen the pressure of the first liquid supplied from the first supply tank exceeds the first specified pressure and a greater second specified pressure, the first flow channel selection mechanism also allows the flow of the first liquid supplied from the first supply tank to a direction of the mixing tank via the first flow channel. 8. The fluid mixing device as claimed in claim 7, wherein, the first valve comprises a diaphragm, and when the first valve has pressure applied thereto from the second liquid fed through the second branch flow channel, the first valve is deformed and communication between mixing tank and first mixing tank flow channel is blocked,the second valve comprises a diaphragm, and when the second valve has pressure applied thereto from the first liquid fed through the first branch flow channel, the second valve is deformed and communication between mixing tank and second mixing tank flow channel is blocked,the first flow channel selection mechanism defines a branch point between the first mixing tank flow channel and the first branch flow channel,the second flow channel selection mechanism defines a branch point between the second mixing tank flow channel and the second branch flow channel. 9. The fluid mixing device as claimed in claim 7, wherein, the first flow channel selection mechanism and the second flow channel selection mechanism each have one input flow channel corresponding to a flow channel portion that communicates with a supply tank side of a respective one of the first and second mixing tank flow channels and a plurality of output flow channels corresponding to a flow channel portion that communicate with a mixing tank side of the mixing tank flow channels and with a respective one of the first and second branch flow channels. 10. The fluid mixing device as claimed in claim 9, wherein, each flow channel selection mechanism further comprises a first passive valve arranged in a first of the output flow channels and a second passive valve arranged in a second of the output flow channels, andthe first and second passive valves are different from each other in flow resistance value. 11. The fluid mixing device as claimed in claim 10, wherein, for the first flow channel selection mechanism, the first output flow channel is associated with the first flow channel and the second out flow channel is associated with the first branch flow channel, andthe first passive valve has a first flow resistance value Y larger than a second flow resistance value X of the second passive valve. 12. The fluid mixing device as claimed in claim 7, wherein the first and second flow channel selection mechanisms each includes one input flow channel, which corresponds to a flow channel portion communicating with a supply tank side of the mixing tank flow channel, and at least two output flow channels, which correspond to a flow channel portion communicating with the corresponding one of the branch flow channels and a flow channel portion communicating with the mixing tank side of the mixing tank flow channel, respectively, andwherein the output flow channels have flow resistances different from each other. 13. The fluid mixing device as claimed in claim 12, wherein the output flow channels are constructed in flow channel widths different from each other. 14. The fluid mixing device as claimed in claim 12, wherein the fluid mixing device comprises at least two sheets bonded to each other, andwherein the input flow channel and the output flow channels of each flow channel selection mechanism are constructed of portions in which the sheets are not bonded to each other. 15. The fluid mixing device as claimed in claim 7, wherein each flow channel selection mechanism is constructed of at least one flexible material. 16. A fluid mixing device, comprising: a mixing tank for mixing a first liquid with a second liquid;first and second supply tanks for respectively supplying the first and second liquids;a first mixing tank flow channel connected between the first supply tank and a first inlet of the mixing tank;a second mixing tank flow channel connected between the second supply tank and a second inlet of the mixing tank;a first valve located in the first mixing tank flow channel and arranged to prevent a flow from the mixing tank to the first supply tank;a second valve located in the second mixing tank flow channel and arranged to prevent a flow from the mixing tank to the second supply tank;first and second flow channel selection mechanisms located respectively in the first and second mixing tank flow channels;a first branch flow channel branching from the first mixing tank flow channel to the second mixing tank flow channel by connection to the first flow channel selection mechanism and to the second valve; anda second branch flow channel branching from the second mixing tank flow channel to the first mixing tank flow channel by connection to the second flow channel selection mechanism and to the first valve, wherein,when pressure of the first liquid supplied from the second supply tank is below a first specified pressure, the first flow channel selection mechanism prevents a flow of the first liquid supplied from the first supply tank through both a direction of the first branch flow channel and a direction of the first flow channel,when the pressure of the first liquid supplied from the first supply tank reaches the first specified pressure, the first flow channel selection mechanism limits the flow of the first liquid supplied from the first supply tank to only the direction of the first branch flow channel, andwhen the pressure of the first liquid supplied from the first supply tank exceeds the first specified pressure and a greater second specified pressure, the first flow channel selection mechanism also allows the flow of the first liquid supplied from the first supply tank to the direction of the mixing tank via the first flow channel.
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