Abstract:
A heat exchanger apparatus (20) of the type having a rigid, unitary, parallel piped shaped core (21) mounted in a frame (22) defining support areas for the core. The core (21) is formed of a plurality of thin parallel plates (30, 30a) defining alternating passages (32, 34) for two different gas flows. Each plate (30) is connected to an adjacent plate by parallel elongated bars (31, 33) along side edges thereof, the bars being of stronger construction than the plates. The core (21) has four vertical corners, a pair of lower transverse corners and a pair of upper transverse corners. The frame (22) includes a pair of spaced parallel plates (23) and transverse structural connectors (24). Seal means (45, 46, 70) are provided both between the vertical corners (41) and the transverse corners (51) of the core (21) and the adjacent surfaces (26) of the frame defined by the pair of plates (23) and by the structural connectors (24).
Abstract:
The invention relates to a heat exchanger plate (106) having first surface portions (210) located along first plate edges (220) and comprising first contacting regions (214), and second surface portions (212) located along second plate edges (222). The first surface portions (210) are bent to a first side yielding a first partial fluid channel (230), and the second surface portions (212) are bent to a second side yielding a second partial fluid channel (232). The first contacting regions (214) define a plane (S). The heat exchanger plate (106) has corner surface portions (224) comprising first corner edge portions (226) and second corner edge portions (228). At least two corner surface portions (224) are bent inward with respect to the first partial fluid channel (230) such that their first corner edge portions (226) are in the plane (S), while their second corner edge portions (228) are perpendicular to the plane (S).