An evaporator comprises tubes, configured for coolant flow, stacked in regularly spaced relation to one another, each of the tubes formed by coupled tube plates. Also comprising a tank in fluid communication with the tubes at an upper or lower side; inlet and outlet end-plates which respectively have an inflow part and an outflow part at an upstream side of coolant flow and positioned at respective end sides of the stacked tubes; and inlet and outlet manifolds in fluid communication with the tank and coupled to the inflow and outflow parts to define a coolant flow passage. The outlet manifold has a coolant movement preventing part isolating a rear portion from the coolant flow passage and comprises a closed space formed by joining the outlet end-plate and the outlet manifold to prevent formation of a dead zone where the coolant from the tank flows into a downstream side of the outlet manifold and is whirled therein.
1. An evaporator, comprising:
a plurality of tubes stacked in regularly spaced relation to one another and configured to have coolant flowing therethrough, each of said tubes being formed by two coupled tube plates;
fins interposed between the tubes;
a tank joined to and configured to be in fluid communication with the plurality of tubes at an upper or lower side of the plurality of tubes;
an inlet end-plate and an outlet end-plate which respectively have an inflow part and an outflow part at an upstream side of coolant flow and which are positioned at respective end sides of the stacked tubes; and
an inlet manifold and an outlet manifold which are joined to and configured to be in fluid communication with the tank and also coupled to the inflow part and the outflow part so as to define a coolant flow passage,
wherein the outlet manifold has a coolant movement preventing part which isolates a rear portion of the outlet manifold from the coolant flow passage and comprises a closed space formed by joining the outlet end-plate and the outlet manifold to prevent formation of a dead zone in which the coolant from the tank, joined to and in fluid communication with an adjacent tube, flows into a downstream side of the outlet manifold and is whirled therein.
2. The evaporator as set forth in claim 1 , wherein the coolant movement preventing part comprises an isolating part which is positioned at a front side of the closed space and formed by joining the outlet end-plate and the outlet manifold so as to isolate the closed space.
3. The evaporator of claim 1 , the rear portion of the outlet manifold comprising a downstream side of the outlet manifold.