Jack H Riddle

US Patent:

20050061488, Mar 24, 2005

Filed:

Sep 22, 2003

Appl. No.:

10/667627

Inventors:

Wen-Fei Yu - Ann Arbor MI, US
Loren Lohmeyer - Monroe MI, US
Manos Eliades - Belleville MI, US
Jack Riddle - Brighton MI, US

International Classification:

F28D021/00

US Classification:

165140000, 165109100, 165916000

Abstract:

A heat exchanger includes a first section and a second section for cooling distinct fluids, wherein the second section is adapted for cooling oil. The heat exchanger includes first and second manifolds divided by baffles into first and second chambers. A plurality of tubes connect the manifolds in fluid communication with the first chambers to form the first section of the heat exchanger. A plurality of oil cooling tubes connect the manifolds in fluid communication with the second chambers to form the second section. The oil cooling tubes have a cross-section characterized by a performance ratio between about 3.9 and 8.5 wherein the performance ratio is the ratio of the wetted perimeter in millimeters divided by the cross-sectional area of tube metal in square millimeters. The oil cooling tubes may be formed of extruded metal with internal fins or an extruded tube having a stamped metal insert.

US Patent:

20050061489, Mar 24, 2005

Filed:

Apr 23, 2004

Appl. No.:

10/831378

Inventors:

Wen Yu - Ann Arbor MI, US
Manos Eliades - Belleville MI, US
Loren Lohmeyer - Monroe MI, US
Jack Riddle - Brighton MI, US

International Classification:

F28F009/26

US Classification:

165140000

Abstract:

A heat exchanger having an improved oil cooler section is provided. The oil cooler section includes a first manifold, a second manifold, an oil inlet port, an oil outlet port, cooling tubes, and a return tube. The first and second manifold are located in spaced relationship and the oil inlet and outlet port are located proximate each other toward one side of the heat exchanger. The cooling tubes are connected between the first and second manifold, each tube defining an oil flow passage. The return tube also be connected between the first and second manifold and defining an oil return passage. The oil return passage has a cross-sectional area larger than each of the oil flow passages allowing the oil to be returned along a low pressure flow path.

US Patent:

20060060327, Mar 23, 2006

Filed:

Sep 23, 2004

Appl. No.:

10/948023

Inventors:

Wen Yu - Ann Arbor MI, US
Ramchandra Patel - Southgate MI, US
Manos Eliades - Belleville MI, US
Jack Riddle - Brighton MI, US

International Classification:

F28F 11/00

US Classification:

165070000, 165132000

Abstract:

A heat exchanger for a vehicle is provided, where the heat exchanger includes core having first, and second sets of flow tubes extending between first and second headers and defining separate flow paths. One of the headers includes a first portion in fluid communication with the first set of flow tubes and a second portion defining a receiver/dryer chamber that is in fluid communication with the second set of flow tubes. A dryer is located within the receiver/dryer chamber.