Supercharge air cooler

Patent metadata

Field	Value
Publication number	US-2016003128-A1
Application number	US-201314414612-A
Country	US
Kind code	A1
Filing date	Jul 12, 2013
Priority date	Jul 13, 2012
Publication date	Jan 7, 2016
Grant date	—

Abstract

The invention relates to a plate heat exchanger forming between its plates a first flat flow tube in which a first fluid circulates between a first inlet orifice and a first outlet orifice, and a second flat flow tube in which a second fluid circulates between a second inlet orifice and a second outlet orifice. The two flat tubes form parallel arms which extend in a longitudinal direction (L) perpendicular to a transverse air flow traversing the heat exchanger, the first tube being upstream in the air flow and the second tube being downstream.

First claim

1 . A heat exchanger with plates assembled in pairs, each pair forming between its plates a first flat flow tube in which a first fluid circulates between a first inlet orifice and a first outlet orifice,
characterised in that: each pair of plates further forms between its plates a second flat flow tube in which a second fluid circulates between a second inlet orifice and a second outlet orifice, the two flat tubes being coplanar (P) and forming parallel arms extending in a longitudinal direction (L) of the plane (P), which direction is itself perpendicular to a transverse direction (T) of the plane (P) in which a transverse air flow traverses the heat exchanger, passing between the pairs of plates, the first tube being upstream in the air flow and the second tube being downstream, the air flow being first in thermal exchange with the first tube, then in thermal exchange with the second tube.

2 . The heat exchanger according to claim 1 in which at least one of the two flow tubes has two parallel longitudinal arms connected by one of their ends in a U, one of the arms of the U being upstream in the air flow, the upstream arm and the other arm of the U being downstream, the downstream arm.

3 . Heat exchanger according to claim 1 in which at least one of the two flow tubes has two parallel longitudinal arms connected at their two ends in a 0, one of the arms of the 0 being upstream in the air flow, the upstream arm, and the other arm of the 0 being downstream, the downstream arm.

4 . Heat exchanger according to claim 2 in which the inlet orifice of a flat tube is arranged on the downstream arm and the outlet orifice is arranged on the upstream arm.

5 . Heat exchanger according to claim 3 in which the inlet and outlet orifices are arranged in the central zone of the arms and are longitudinally (L) offset from each other.

6 . Heat exchanger according to claim 5 , the exchanger being provided for cooling the transverse air flow (T) while the first fluid and the second fluid heat up and in which, measured in the common plane (P) and in the transverse direction (T), the width (L 1 , L 3 ) of the longitudinal arm in which is located the outlet orifice for the fluid is wider than the width (L 2 , L 4 ) of the longitudinal arm of the same tube in which is located the fluid inlet orifice.

7 . Heat exchanger according to claim 6 , the exchanger being provided for cooling the transverse air flow (T) while the first fluid and the second fluid heat up, the exchanger comprising at least two pairs of plates between which are arranged cooling fins oriented in the transverse direction (T), the upstream fins situated between the first tubes, upstream in the air flow, being further away from each other than the downstream fins situated between the second tubes, downstream in the air flow.

8 . Heat exchanger according to claim 6 , the exchanger being provided for heating the transverse air flow (T) while the first fluid and the second fluid cool down, the exchanger comprising at least two pairs of plates between which are arranged cooling fins oriented in the transverse direction (T), the upstream fins situated between the first tubes, upstream in the air flow, being closer to each other than the downstream fins situated between the second tubes, downstream in the air flow.

9 . Heat exchanger according to claim 4 in which the two flat tubes each have two parallel longitudinal arms connected by one of their ends and together form a UU, the inlet and outlet orifices being arranged at the end of the longitudinal arms.

10 . Heat exchanger according to claim 5 in which the two flat tubes each have two parallel longitudinal arms connected at their two ends and together form a 00, the inlet and outlet orifices being arranged in the middle of the longitudinal arms.

11 . Heat exchanger according to claim 5 in which the two flat tubes each have two parallel longitudinal arms connected at their two ends and together form a 00, the four inlet and outlet orifices being arranged in the central zone of the longitudinal arms, being offset from each other.

12 . Heat exchanger according claim 11 in which the flat tubes in which the fluids circulate are provided with flow disruptors which are further apart from each other in the proximity of the inlet orifice than they are in the proximity of the outlet orifice.

13 . Heat exchanger according to claim 12 in which the density of flow disruptors along the flat tubes increases regularly between the inlet orifice and the outlet orifice.

14 . Heat exchanger according to either of claim 13 in which the flow disruptors are grouped in sets of several disruptors aligned transversely to the direction of flow of the fluid.

15 . Heat exchanger according to claim 14 in which the sets are further apart from each other in the proximity of the inlet orifice than they are in the proximity of the outlet orifice.

16 . Heat exchanger according to claim 15 in which the heat exchanger is a charge air cooler, the first tubes being capable of being connected to a high-temperature cooling circuit comprising a high-temperature radiator in which a first cooling fluid circulates, and the second tubes being capable of being connected to a low-temperature cooling circuit comprising a low-temperature radiator and in which a second cooling fluid circulates.

17 . Heat exchanger according to claim, the exchanger being fixed to a base which is itself provided with fixing means allowing it to be rigidly connected to an external environment.

Assignees

• Delphi Tech Inc

Inventors

• Berger Thierry
• Ayad Fadil
• Prochette Bruno

Classifications

• F28F3/044

  the deformations being pontual, e.g. dimples · CPC title

• F28D9/0093

  Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids · CPC title

• F28F13/08

  by varying the cross-section of the flow channels · CPC title

• F02M35/10268

  Heating, cooling or thermal insulating means (air coolers F02B29/04; thermal treatment of combustion-air, fuel or fuel-air mixture F02M31/00; details of the throttle valve housing F02D9/1035) · CPC title

• F02B29/0443

  Layout of the coolant or refrigerant circuit · CPC title