A heat exchanger includes tubes having tube inlets, an inlet tank having therein an inlet tank space, and a dynamic baffle disposed in the inlet tank space. The inlet tank has a tank inlet. The tubes include first tubes and second tubes. The first tubes are closer to the tank inlet than the second t
A heat exchanger includes tubes having tube inlets, an inlet tank having therein an inlet tank space, and a dynamic baffle disposed in the inlet tank space. The inlet tank has a tank inlet. The tubes include first tubes and second tubes. The first tubes are closer to the tank inlet than the second tubes are to the tank inlet. The first tubes include a nearest tube that is, among the tubes, closest to the tank inlet. The dynamic baffle is configured to, when the fluid pressure of the thermal fluid in the inlet tank space is below a specified value, suppress the flow rates of the plurality of first tubes, and, when the fluid pressure of the thermal fluid in the inlet tank space is at or above the specified value, increase the flow rate of at least one of the plurality of the first tubes.
대표청구항▼
1. A heat exchanger comprising: a plurality of tubes through which thermal fluid flows, each of the plurality of tubes having a tube inlet;an inlet tank having an inlet tank space within the inlet tank, the inlet tank space being in fluid communication with the plurality of tubes; anda dynamic baffl
1. A heat exchanger comprising: a plurality of tubes through which thermal fluid flows, each of the plurality of tubes having a tube inlet;an inlet tank having an inlet tank space within the inlet tank, the inlet tank space being in fluid communication with the plurality of tubes; anda dynamic baffle disposed in the inlet tank space, the dynamic baffle configured to adjust a flow of the thermal fluid in the inlet tank space, whereinthe inlet tank space extends in a first direction along which the plurality of tubes are connected to the inlet tank, and the thermal fluid flows through the inlet tank space along the first direction from an upstream side to a downstream side,the inlet tank has a tank inlet at the upstream side of the inlet tank in the first direction,the inlet tank space receives the thermal fluid through the tank inlet, the thermal fluid flowing out of the inlet tank space at the tube inlet of each of the plurality of tubes and at a respective flow rate for each of the plurality of tubes,the plurality of tubes include a plurality of first tubes and a plurality of second tubes, the plurality of first tubes being closer to the tank inlet than the plurality of second tubes are to the tank inlet,the plurality of first tubes include a nearest tube that is, among the plurality of tubes, closest to the tank inlet, andthe dynamic baffle is configured to suppress the flow rates of the plurality of first tubes when a fluid pressure of the thermal fluid in the inlet tank space is below a specified value, andincrease the flow rate of at least one of the plurality of the first tubes when the fluid pressure of the thermal fluid in the inlet tank space is at or above the specified value, whereinthe dynamic baffle includes a plurality of doors adjacent to the plurality of first tubes, andthe plurality of doors are rotatably disposed within the inlet tank space, each of the plurality of doors configured to rotate to adjust the flow rate of a respective one of the plurality of first tubes, whereinthe dynamic baffle includes a body in which the plurality of doors are rotatably disposed and a plurality of openings are formed,the plurality of openings are adjacent to respective ones of the plurality of doors,the body extends along the first direction to define a first space and a second space inside the inlet tank space,the plurality of doors and the plurality of openings are arranged along the first direction to face corresponding ones of the plurality of first tubes,the plurality of doors are configured to rotate to selectively open and close the plurality of openings, andthe plurality of doors are configured to close the plurality of openings to prohibit the thermal fluid from flowing through the plurality of openings from the first space to the second space when the fluid pressure of the thermal fluid in the inlet tank space is below the specified value, thereby suppressing the flow rates of the corresponding ones of the plurality of first tubes, andopen at least one of the plurality of openings to allow the thermal fluid to flow through the at least one of the plurality of openings from the first space to the second space when the fluid pressure of the thermal fluid in the inlet tank space is at or above the specified value, thereby increasing the flow rate of the at least one of the plurality of first tubes. 2. The heat exchanger according to claim 1, wherein the dynamic baffle is configured to increase the flow rates of the plurality of the first tubes concurrently when the fluid pressure of the thermal fluid in the inlet tank space is at the specified value. 3. The heat exchanger according to claim 1, wherein the plurality of first tubes include a farthermost tube that is, among the plurality of first tubes, farthermost from the tank inlet, andthe dynamic baffle is configured to increase a flow rate of the farthermost tube when the fluid pressure of the thermal fluid in the inlet tank space is at the specified value. 4. The heat exchanger according to claim 1, wherein the dynamic baffle is configured to increase the flow rate of the at least one of the plurality of first tubes as the fluid pressure increases when the fluid pressure of the thermal fluid in the inlet tank space is at or above the specified value. 5. The heat exchanger according to claim 1, wherein the dynamic baffle further includes a plurality of biasing members connected to the respective ones of the plurality of doors,the plurality of biasing members are configured to apply a biasing force to the plurality of doors in a closing direction to close the plurality of openings, andthe plurality of doors are configured to rotate in an opening direction, which is opposite to the closing direction, against the biasing force of the plurality of biasing members to open the at least one of the plurality of openings when the fluid pressure of the thermal fluid in the inlet tank space is at or above the specified value. 6. The heat exchanger according to claim 5, wherein the biasing force of each of the plurality of biasing members has a substantially same value. 7. The heat exchanger according to claim 5, wherein one of the plurality of biasing members is located farther from the tank inlet than an other of the plurality of biasing members is from the tank inlet, andthe biasing force of the one of the plurality of biasing members is less than that of the other of the plurality of biasing members. 8. The heat exchanger according to claim 5, wherein the plurality of doors are configured to rotate in the opening direction according to the fluid pressure of the thermal fluid in the inlet tank space, andthe plurality of doors increase the flow rates of the plurality of first tubes as the plurality of doors rotate in the opening direction. 9. A heat exchanger comprising: a plurality of tubes through which thermal fluid flows, each of the plurality of tubes having a tube outlet;an outlet tank having an outlet tank space within the outlet tank, the outlet tank space being in fluid communication with the plurality of tubes; anda dynamic baffle disposed in the outlet tank space, the dynamic baffle configured to adjust a flow of the thermal fluid in the outlet tank space, whereinthe outlet tank space extends in a first direction along which the plurality of tubes are connected to the outlet tank, and the thermal fluid flows through the outlet tank space along the first direction from an upstream side to a downstream side,the outlet tank has a tank outlet at the downstream side of the outlet tank in the first direction, the thermal fluid flowing into the outlet tank space at the tube outlet of each of the plurality of tubes and at a respective flow rate for each of the plurality of tubes and flowing out of the outlet tank through the tank outlet,the plurality of tubes include a plurality of first tubes and a plurality of second tubes, the plurality of first tubes being closer to the tank outlet than the plurality of second tubes are to the tank outlet,the plurality of first tubes include a nearest tube that is, among the plurality of tubes, closest to the tank outlet, andthe dynamic baffle is configured to suppress the flow rates of the plurality of first tubes when the fluid pressure of the thermal fluid in the outlet tank space is below a specified value, andincrease the flow rate of at least one of the plurality of the first tubes when the fluid pressure of the thermal fluid in the outlet tank space is at or above the specified value, whereinthe dynamic baffle includes a plurality of doors adjacent to the plurality of first tubes, andthe plurality of doors are rotatably disposed within the outlet tank space, each of the plurality of doors configured to rotate to adjust the flow rate of a respective one of the plurality of first tubes, whereinthe dynamic baffle includes a body in which the plurality of doors are rotatably disposed and a plurality of openings are formed,the plurality of openings are adjacent to respective ones of the plurality of doors,the body extends along the first direction to define a first space and a second space inside the outlet tank space,the plurality of doors and the plurality of openings are arranged along the first direction to face corresponding ones of the plurality of first tubes,the plurality of doors are configured to rotate to selectively open and close the plurality of openings, andthe plurality of doors are configured to close the plurality of openings to prohibit the thermal fluid from flowing through the plurality of openings from the first space to the second space when the fluid pressure of the thermal fluid in the outlet tank space is below the specified value, thereby suppressing the flow rates of the corresponding ones of the plurality of first tubes, andopen at least one of the plurality of openings to allow the thermal fluid to flow through the at least one of the plurality of openings from the first space to the second space when the fluid pressure of the thermal fluid in the outlet tank space is at or above the specified value, thereby increasing the flow rate of the corresponding ones of the plurality of first tubes.
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이 특허에 인용된 특허 (5)
Cheong ; Alex Shu-Ki, Cross-flow radiator deaeration system.
Schatz Oskar (Tellhhe 14 D-8031 Stockdorf DEX), Process for increasing the heat flow density of heat exchangers working with at least one high-velocity gaseous medium,.
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