US 9,791,190 B2Granted

Condenser

AssigneeKeihin Thermal Technology Corporation

InventorTatsuya Hanafusa

Life of this patent

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Abstract

A condenser includes first and second header tanks provided on one side of the condenser, and a third header tank provided on another side of the condenser. A plurality of second heat exchange tubes extend in an extending direction between the second header tank and the third header tank to connect the second header tank and the third header tank. A plurality of first heat exchange tubes are provided to extend in the extending direction between the first header tank and the third header tank to connect the first header tank and the third header tank. The plurality of first heat exchange tubes are directly connected to the first header tank. The plurality of first heat exchange tubes are longer than the plurality of second heat exchange tubes and are positioned downstream of the plurality of second heat exchange tubes with respect to a flow of refrigerant.

Claims15

Dependent claims

A condenser comprising heat exchange tubes disposed in parallel such that the heat exchange tubes are spaced apart from one another in a vertical direction and extend in a left-right direction;

and header tanks which extend in the vertical direction and to which left and right end portions of the heat exchange tubes are connected, wherein
first and second header tanks are provided at the left or right end of the condenser;
the first header tank is disposed on an outer side of the second header tank with respect to the left-right direction, the first header tank has an upper end located above a lower end of the second header tank in the vertical direction when the first and second header tanks are oriented to longitudinally extend in directions parallel to the vertical direction, and the first header tank has a function of separating gas and liquid from each other and storing the liquid;
first heat exchange tubes connected to the first header tank have projecting portions at their ends located on a side toward the first header tank, the projecting portions extending outward, with respect to the left-right direction, of second-header-tank-side end portions of second heat exchange tubes connected to the second header tank, the first heat exchange tubes being longer than the second heat exchange tubes by a length of the projecting portions in the left-right direction and being positioned downstream of the second heat exchange tubes with respect to a flow of refrigerant, fins being disposed between the projecting portions of adjacent first heat exchange tubes;
and
the projecting portions of all the first heat exchange tubes and the fins between the projecting portions of the adjacent first heat exchange tubes form a heat exchange section.

3 more elements

A condenser comprising:

a second header tank which is provided on one side of the condenser with respect to a left-right direction of the condenser to extend in a first direction perpendicular to the left-right direction;
a first header tank provided on the one side of the condenser to extend in the first direction and at an outer side of the second header tank with respect to the left-right direction and having a gas-liquid separation function, an upper end of the first header tank being located above a lower end of the second header tank in a vertical direction when the first and second header tanks are oriented to longitudinally extend in directions parallel to the vertical direction;
a third header tank provided on another side of the condenser opposite to the one side with respect to the left-right direction;
a plurality of second heat exchange tubes extending in the left-right direction between the second header tank and the third header tank to connect the second header tank and the third header tank;
a plurality of first heat exchange tubes provided to extend in the left-right direction between the first header tank and the third header tank to connect the first header tank and the third header tank, the plurality of first heat exchange tubes being directly connected to the first header tank, the plurality of first heat exchange tubes being longer than the plurality of second heat exchange tubes by a length of projecting portions in the left-right direction and being positioned downstream of the plurality of second heat exchange tubes with respect to a flow of refrigerant;
and
fins provided between the plurality of first heat exchange tubes at the projecting portions.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/709,484Filed 12 May 2015 · continuation
Priority: JP 2010-03086716 Feb 2010
Published: US 2015/0241097 A127 Aug 2015
Granted: 17 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

F25B 39/04
Evaporators; Condensers: condensers
F28D 1/05375
Assemblies of conduits connected to common headers, e.g. core type radiators: with particular pattern of flow, e.g. change of flow direction
F28F 9/02
Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings: header boxes; End plates
F28F 9/0209
For elongated header box, e.g. with transversal and longitudinal partitions: having only transversal partitions

Family

Application12/929,620Parent of this continuation · filed 4 Feb 2011
US 2015/0241097 A1Pre-grant publication · published 27 Aug 2015
US 9,062,919 B2Parent of this continuation
US 2011/0198065 A1Published application
US 9,791,190 B2This patent

From the US filing history. Foreign family members aren’t listed.