Heat exchanger having in fins flow passageways constituted by heat exchange pipes and U-bend portions
First Claim
1. A heat exchanger having in fins flow passageways constituted by heat exchange pipes and U-bend portions, comprising:
- fins juxtaposed at narrow intervals, one side of said fins serving as an upstream side for receiving heat exchange air, the other side of said fins serving as a downstream side for outputting the heat exchange air;
a bent portion provided at a substantially middle portion of said fins in the longitudinal direction of said fins, said fins being bent at said bent portion in the direction of conduction of the heat exchange air;
passageways constituted by heat exchange pipes and U-bend portions, said heat exchange pipes being arranged in an upstream-side front row and a downstream-side rear row so as to penetrate said fins and project sideways from the outermost ones of said fins, said U-bend portions being provided on said outermost ones of said fins to connect end portions of adjacent ones of said heat exchange pipes, said passageways guiding a heat exchange medium from the upstream side for subjecting the heat exchange medium to heat exchange with the heat exchange air, guiding the heat exchange medium from the upstream side to the downstream side at said bent portion, and then guiding the heat exchange medium again to the upstream side; and
a flow introducing unit, provided on the upstream side, for introducing the heat exchange medium into the passageways and a flow discharging unit, provided on the downstream side, for discharging the heat exchange medium from said passageways.
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Accused Products
Abstract
The present invention includes fins that are juxtaposed at narrow intervals. One side of the fins serves as an upstream side, and the other side thereof serves as a downstream side. Heat exchange air passes through the fins. A bent portion is provided at a substantially middle portion of the fins in the longitudinal direction of the fins, and the fins are bent at the bent portion at a predetermined angle. Heat exchange pipes are provided to penetrate the fins and are arranged in an upstream-side front row and a downstream-side rear row. U-bend portions are provided to connect end portions of adjacent heat exchange pipes. Passageways for guiding a heat exchange medium are formed by the heat exchange pipes and U-bend portions. The passageways introduce the heat exchange medium from a flow introducing unit provided on the upstream side, guide the heat exchange medium from the upstream side to the downstream side at the bent portion, guide the heat exchange medium again to the upstream side, and discharge the heat exchange medium from a flow discharging unit provided on the downstream side.
23 Citations
10 Claims
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1. A heat exchanger having in fins flow passageways constituted by heat exchange pipes and U-bend portions, comprising:
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fins juxtaposed at narrow intervals, one side of said fins serving as an upstream side for receiving heat exchange air, the other side of said fins serving as a downstream side for outputting the heat exchange air; a bent portion provided at a substantially middle portion of said fins in the longitudinal direction of said fins, said fins being bent at said bent portion in the direction of conduction of the heat exchange air; passageways constituted by heat exchange pipes and U-bend portions, said heat exchange pipes being arranged in an upstream-side front row and a downstream-side rear row so as to penetrate said fins and project sideways from the outermost ones of said fins, said U-bend portions being provided on said outermost ones of said fins to connect end portions of adjacent ones of said heat exchange pipes, said passageways guiding a heat exchange medium from the upstream side for subjecting the heat exchange medium to heat exchange with the heat exchange air, guiding the heat exchange medium from the upstream side to the downstream side at said bent portion, and then guiding the heat exchange medium again to the upstream side; and a flow introducing unit, provided on the upstream side, for introducing the heat exchange medium into the passageways and a flow discharging unit, provided on the downstream side, for discharging the heat exchange medium from said passageways. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification