Abstract: A nested dish-plate heat exchanger is disclosed wherein the heat exchanger core is comprised of a plurality of first and second heat exchanger plates arranged in alternating stacked relationship. The first and second heat exchanger plates each have a pair of openings formed in the base portion of the plates and a pair of upwardly protruding boss portions and a pair of downwardly protruding bosses each having a corresponding opening formed therein. The first and second heat exchanger plates are arranged in an alternating stacked relationship wherein each subsequent first or second heat exchanger plate is rotation 180 degrees with respect to the previous first or second heat exchanger plate in the stack, the arrangement providing a plurality of first, second and third fluid flow passages therebetween such that each of the second and third fluid flow passages are in heat transfer relationship with the first fluid flow passages.

Abstract: A nested dish-plate heat exchanger is disclosed wherein the heat exchanger core is comprised of a plurality of first and second heat exchanger plates arranged in alternating stacked relationship. The first and second heat exchanger plates each have a pair of openings formed in the base portion of the plates and a pair of upwardly protruding boss portions and a pair of downwardly protruding bosses each having a corresponding opening formed therein. The first and second heat exchanger plates are arranged in an alternating stacked relationship wherein each subsequent first or second heat exchanger plate is rotation 180 degrees with respect to the previous first or second heat exchanger plate in the stack, the arrangement providing a plurality of first, second and third fluid flow passages therebetween such that each of the second and third fluid flow passages are in heat transfer relationship with the first fluid flow passages.

Abstract: A heat exchanger has a heat exchanging element with a first terminal plate closing the heat exchanging element on one of its sides and with at least one opening provided with a socket for fluids for the heat exchanger element. At least a first gasket carrier plate has a first lateral face arranged adjacent to the first terminal plate and an opposite second lateral face. The first gasket carrier plate has at least one passage opening leading from the first to the second lateral face for taking up at least one socket of the first terminal plate. A first sealing element is provided between the first terminal plate and the first gasket carrier plate. A second sealing element is provided adjacent to the second lateral face. The at least one socket of the first terminal plate is bulged outwardly to adjoin to the second sealing element at least in sections.

Abstract: The present invention relates to a heat exchanger, especially oil cooler for vehicles, comprising a heat exchanging element with a first terminal plate closing the heat exchanging element on one of its sides and with at least one opening provided with a socket for inlet or release of a fluid into or from the heat exchanger element, at least a first gasket carrier plate, with a first lateral face being arranged adjacent to the first terminal plate and a second lateral face being arranged opposite to the first lateral face, at least one passage opening leading from the first to the second lateral face for taking up at least one socket of the first terminal plate, at least a first sealing element, being arranged between the first terminal plate and the first gasket carrier plate, completely encircling the circumferential edge of the at least one passage opening on the first lateral face and sealing the passage opening between the first terminal plate and the first gasket carrier plate, at least a second sealing

Abstract: An insert adapted to connect to opposite walls in a heat exchanger tube, including a corrugated sheet having alternating wave crests and wave troughs connected by wave flanks having openings therein, wherein at least some of the wave crests have a length different than the length of the wave troughs, and/or adjacent sections have different wavelength waves. Such inserts may be produced by transporting material sheets through a press, where the sheet feed rate and/or the press stroke speed may be selectively varied.