Richard A Bretl

US Patent:

7552756, Jun 30, 2009

Filed:

Jul 10, 2006

Appl. No.:

11/483789

Inventors:

Martin J. Riniker - Franklin WI, US
James R. Prochniak - Racine WI, US
Craig D. Endres - Oak Creek WI, US
John Lutz - Burlington WI, US
Richard Bretl - Union Grove WI, US
Gregg D. Olson - Racine WI, US
David Mihalovich - Trenton MO, US
Jarin Simpson - Spickard MO, US

Assignee:

Modine Manufacturing Company - Racine WI

International Classification:

B60H 1/00
F28F 7/00
F28D 1/02
F28F 9/02

US Classification:

165 41, 165173, 165 76, 165152, 165153

Abstract:

A heat exchanger () is provided with a PTO section () passing through its core (), with all of the components of the heat exchanger () being brazed together at the same time during assembly of the heat exchanger ().

US Patent:

52285120, Jul 20, 1993

Filed:

Apr 2, 1991

Appl. No.:

7/679519

Inventors:

Richard A. Bretl - Union Grove WI
Dan R. DeRosia - Racine WI
Charles E. Goodremote - Racine WI
Peter C. Kottal - Racine WI

Assignee:

Modine Manufacturing Company - Racine WI

International Classification:

F28D 1053
F28F 916

US Classification:

165153

Abstract:

Thermal and pressure related fatigue or stress in the header plates (26, 28) of a charge air cooler is avoided in a structure wherein the header plates (26, 28) are formed of a channel having a central web (80) flanked by legs (82, 84) and provided with apertures (86) for receiving the ends of tubes (36). The apertures (86), on the side thereof between the legs (82, 84), are provided with peripheral flanges (88, 90, 92, 94) and on the opposite side are substantially surrounded by concave camming surfaces (96, 98).

US Patent:

42692652, May 26, 1981

Filed:

Nov 29, 1979

Appl. No.:

6/098707

Inventors:

Robert A. Meyer - Racine WI
Richard A. Bretl - Racine WI

Assignee:

Modine Manufacturing Company - Racine WI

International Classification:

F28F 1312

US Classification:

165109T

Abstract:

A tubular heat exchanger for liquids having a turbulator in a liquid flow tube offering low resistance to internal liquid flow. The liquid flow tube has an inside surface and transverse minor and major inner dimensions. The internal turbulator is elongated and comprises a heat conducting wire having successive, substantially canted undulations in contact with the tube's inner surface.

US Patent:

55446990, Aug 13, 1996

Filed:

Feb 10, 1995

Appl. No.:

8/386418

Inventors:

Kevin J. Robers - Racine WI
Richard A. Bretl - Union Grove WI
Lawrence W. Gabbey - Racine WI
William J. Kerkman - Racine WI
Tod T. Kersher - Racine WI

Assignee:

Modine Manufacturing Company - Racine WI

International Classification:

G05D 2300

US Classification:

165283

Abstract:

A simple, reliable bypass valve construction (50) is provided for use in conjunction with a donut oil cooler (16) having an aluminum multi-piece housing (28). The bypass valve construction (50) is easily accessible and readily replaceable so as to lend itself to serviceability. The invention is incorporated in an oil cooler (16) having a housing (28) with a coolant inlet and outlet (42) and (44), and a surface (26) adapted to be sealed against an oil filter (14). The oil cooler (16) includes a plurality of interconnected heat exchange units (21) located inside the housing (28), with an oil inlet to one of the units and an oil outlet from another of the units. An oil bypass is provided through at least some of the interconnected heat exchange units (21) and communicates with a bypass outlet (62) in the housing surface (26). The bypass outlet (62) is normally closed by a bypass valve (52) which includes a generally C-shaped, sheet-like resilient flapper (54) with a valve element (56) sized to close the bypass outlet (62) and located intermediate the ends of the flapper (54). The ends of the flapper (54) have feet (64) and (66) which are received in slots (68) and (70) in the housing surface (26) to mount the flapper (54) on the surface (26) and to at least nominally locate the valve element (56) with respect to the bypass outlet (62).