Heat exchanger with valve
View Patent ↗A housingless plate heat exchanger including a plate stack defining fluid passages, at least one collecting tank with a peripheral edge enclosing one end of the plate stack, and a valve receivable in the collecting tank through an assembly opening of the soldered collecting tank and plate stack. The collecting tank and plate stack are soldered together and have a fluid opening. A method of manufacturing the heat exchanger includes the steps of assembling plates of the plate heat exchanger in a plate stack, placing a collecting tank on one end of the plate stack, soldering the plate stack and collecting tank together, and after the soldering step mounting a valve in the collecting tank.
1. A housingless plate heat exchanger, comprising:
a plate stack defining fluid passages, including cover plates on said plate stack;
protrusions on said cover plates;
at least one collecting tank with a peripheral edge enclosing one end of the plate stack, said collecting tank and plate stack having
a fluid opening, and
at least one assembly opening;
a valve receivable in said collecting tank through said assembly opening of the collecting tank and plate; and
a valve retaining device secured to said protrusions.
2. The heat exchanger of claim 1 , wherein the valve has a flap inside the collecting tank and a stem extending outside the collecting tank.
3. The device of claim 2 , further comprising a bearing bushing in said at least one assembly opening supporting said valve stem.
4. The heat exchanger of claim 1 , further comprising a second assembly opening in said one collecting tank.
5. The heat exchanger of claim 4 , wherein said first and second assembly openings are in opposite walls of said one collecting tank.