초록 ▼

A work machine heat exchanger is provided. The work machine heat exchanger includes an upstream tank having an inlet and a downstream tank having an outlet. The work machine heat exchanger also includes a first core and a second core, both coupled between the upstream and the downstream tank, and in

A work machine heat exchanger is provided. The work machine heat exchanger includes an upstream tank having an inlet and a downstream tank having an outlet. The work machine heat exchanger also includes a first core and a second core, both coupled between the upstream and the downstream tank, and including a first inner side sheet and a second inner side sheet, respectively. The first and the second inner side sheet define an air gap between the first and the second core. A pair of supporting bars are stacked between the first and the second inner side sheet, and configured to retain the first and the second inner side sheet parallel to each other. A first supporting bar of the pair of supporting bars is attached to the upstream tank and a second supporting bar of the pair of supporting bars is attached to the downstream tank.

대표청구항 ▼

1. A work machine heat exchanger comprising: an upstream tank having at least one inlet to receive fluid therein, the upstream tank comprising: a first upstream tank portion having a first inlet of the at least one inlet; anda second upstream tank portion having a second inlet of the at least one in

1. A work machine heat exchanger comprising: an upstream tank having at least one inlet to receive fluid therein, the upstream tank comprising: a first upstream tank portion having a first inlet of the at least one inlet; anda second upstream tank portion having a second inlet of the at least one inlet;a downstream tank having at least one outlet, the downstream tank comprising: a first downstream tank portion having a first outlet of the at least one outlet; anda second downstream tank portion having a second outlet of the at least one outlet;a first core coupled between and in fluid communication with the first upstream tank portion and the first downstream tank portion, the first core comprising a first inner side sheet attached to the first upstream tank portion and the first downstream tank portion;a second core coupled between and in fluid communication with the second upstream tank portion and the second downstream tank portion, the second core comprising a second inner side sheet attached to the second upstream tank portion and the second downstream tank portion, wherein the first inner side sheet and the second inner side sheet define an air gap between the first core and the second core; anda pair of supporting bars stacked between the first inner side sheet and the second inner side sheet, and configured to retain the first inner side sheet parallel to the second inner side sheet,wherein a first supporting bar of the pair of supporting bars is attached to the upstream tank and a second supporting bar of the pair of supporting bars is attached to the downstream tank, andwherein the fluid is movable in one direction only in the first core and the second core. 2. The work machine heat exchanger of claim 1, wherein the upstream tank comprises a first baffle disposed between the first upstream tank portion and the second upstream tank portion, and configured to restrict fluid communication between the first upstream tank portion and the second upstream tank portion. 3. The work machine heat exchanger of claim 1, wherein the downstream tank comprises a second baffle disposed between the first downstream tank portion and the second downstream tank portion, and configured to restrict fluid communication between the first downstream tank portion and the second downstream tank portion. 4. The work machine heat exchanger of claim 1, wherein the first core comprises a first set of secondary separator sheets stacked between the upstream tank and the downstream tank, and wherein each pair of secondary separator sheets defines a first flow passage. 5. The work machine heat exchanger of claim 4, wherein the first core comprises: a set of the first flow passages in fluid communication with the upstream tank and the downstream tank, and configured to allow flow of fluid from the upstream tank to the downstream tank; anda plurality of first fins stacked with the set of the first flow passages along a longitudinal axis of the work machine heat exchanger. 6. The work machine heat exchanger of claim 4, wherein the first core comprises a first peripheral side sheet attached to the upstream tank and the downstream tank, and wherein the set of the first flow passages and the plurality of first fins are stacked between the first inner side sheet and the first peripheral side sheet. 7. The work machine heat exchanger of claim 1, wherein the second core comprises a second set of secondary separator sheets stacked between the upstream tank and the downstream tank, and wherein each pair of secondary separator sheets defines a second flow passage. 8. The work machine heat exchanger of claim 7, wherein the second core comprises: a set of the second flow passages in fluid communication with the upstream tank and the downstream tank, and configured to allow flow of fluid from the upstream tank to the downstream tank; anda plurality of second fins stacked with the set of the second flow passages along a longitudinal axis of the work machine heat exchanger. 9. The work machine heat exchanger of claim 7, wherein the second core comprises a second peripheral side sheet attached to the upstream tank and the downstream tank, and wherein the set of the second flow passages and the plurality of second fins are stacked between the second inner side sheet and the second peripheral side sheet. 10. The work machine heat exchanger of claim 1, wherein width of the air gap is equal to a width of the pair of supporting bars. 11. The work machine heat exchanger of claim 1, wherein each of the first inner side sheet and the second inner side sheet is brazed to the upstream tank and the downstream tank. 12. The work machine heat exchanger of claim 1, wherein each of the first inner side sheet and the second inner side sheet comprises a thermal relief groove. 13. A work machine comprising: a frame;an engine supported by the frame; anda work machine heat exchanger in fluid communication with the engine, the work machine heat exchanger comprising: an upstream tank having at least one inlet to receive fluid therein from the engine, the upstream tank comprising: a first upstream tank portion having a first inlet of the at least one inlet; anda second upstream tank portion having a second inlet of the at least one inlet;a downstream tank having at least one outlet to supply the fluid to the engine, the downstream tank comprising: a first downstream tank portion having a first outlet of the at least one outlet; anda second downstream tank portion having a second outlet of the at least one outlet;a first core coupled between and in fluid communication with the first upstream tank portion and the first downstream tank portion;a second core coupled between and in fluid communication with the second upstream tank portion and the second downstream tank portion; anda pair of supporting bars stacked between the first core and the second core, wherein a first supporting bar of the pair of supporting bars is attached to the upstream tank and a second supporting bar of the pair of supporting bars is attached to the downstream tank, andwherein the first core and the second core are separated by an air gap, and a width of the air gap is equal to a width of the pair of supporting bars, andwherein the fluid is movable in one direction only in the first core and the second core. 14. The work machine of claim 13, wherein the first core comprises a first inner side sheet and the second core comprises a second inner side sheet, the first inner side sheet and the second inner side sheet define the air gap therebetween. 15. The work machine heat exchanger of claim 1, wherein the first upstream tank portion and the second downstream tank portion are located at opposite ends of the first core, and the second upstream tank portion and the second downstream tank portion are located at opposite ends of the second core. 16. The work machine of claim 13, wherein the first upstream tank portion and the second downstream tank portion are located at opposite ends of the first core, and the second upstream tank portion and the second downstream tank portion are located at opposite ends of the second core.