James Elford Nash

US Patent:

59839929, Nov 16, 1999

Filed:

Jan 29, 1999

Appl. No.:

9/239647

Inventors:

Malcolm S. Child - Arlington MA
James B. Kesseli - Mont Vernon NH
James S. Nash - West Newbury MA

Assignee:

Northern Research - Woburn MA
Engineering Corp. - Woburn MA

International Classification:

F28D 103

US Classification:

165 81

Abstract:

A heat exchanger for transferring heat between an external fluid and an internal fluid includes two or more heat exchange cells, each heat exchange cell having a top plate with an inlet aperture at one end thereof and an outlet aperture at the other end thereof, the top plate including a first surface, a second surface and peripheral edges. The heat exchange cell also includes a bottom plate juxtaposed with the top plate, the bottom plate having an inlet aperture at one end thereof and an outlet aperture at the other end thereof. The bottom plate includes a first surface, a second surface and peripheral edges. The peripheral edges of the top and bottom plates are attached to one another, the second surfaces of the top and bottom plates confronting one another and the inlet and outlet apertures of the top and bottom plates being in substantial alignment with one another. The attached top and bottom plates define a high pressure chamber between the second surfaces thereof. The inlet and outlet apertures of the top and bottom plates including substantially curvilinear S-shaped raised flange portions extending away from the first surfaces of the plates, the substantially curvilinear S-shaped raised flange portions terminating at interior edges bounding the apertures.

US Patent:

6305079, Oct 23, 2001

Filed:

Oct 1, 1999

Appl. No.:

9/409641

Inventors:

Malcolm S. Child - Arlington MA
James B. Kesseli - Mont Vernon NH
James S. Nash - West Newbury MA

Assignee:

Ingersoll-Rand Energy Systems Corporation

International Classification:

B23P 1526

US Classification:

29890039

Abstract:

A method of making a heat exchanger includes assembling one or more heat exchange cells. Each heat exchange cell is assembled by providing a top plate having an inlet aperture at one end thereof, an outlet aperture at the other end thereof, a first surface, a second surface and peripheral edges; and providing a bottom plate having an inlet aperture at one end thereof, an outlet aperture at the other end thereof, a first surface, a second surface and peripheral edges. The second surfaces of the top and bottom plates are juxtaposed with one another so that the inlet and outlet apertures of the plates are in substantial alignment with one another. The peripheral edges of the top and bottom plates are attached to form a high pressure chamber between the second surfaces of the plates. After being assembled, each individual heat exchange cell is tested before being attached to other heat exchange cells. The testing may include pressure testing of the heat exchange cell.