In the state of art, the fresh food compartment is cooled by means of an evaporator located in the freezer compartment and a fan. As the cooled air is sent to two locations at different temperatures, the cooling efficiency decreases and the performance of the refrigerator is negatively effected; furthermore due to the reason that the return air has a different temperature value, the cooling performance of the entire system is reduced.

In another known state of art, the freezer and fresh food compartments are separately cooled by using two evaporators and two fans placed individually in the said compartments. This method is of a complex structure and increases the production cost.

Yet in another known state of art, two different compartments, i. e. the freezer and the fresh food compartments are cooled by means of one evaporator placed in the freezer compartment and two fans.

In the US Patent No. 5816068, the freezer and fresh food compartments can be cooled independently. With this method, the evaporator consisting of two pieces is mounted in the freezer compartment, in a two-compartment-refrigerator.

The two identical parts of the evaporator are connected in series to each other and one part provides the cooling of the freezer compartment, with a fan; whereas the second part, together with a second fan provides the cooling of the fresh food compartments, independently. The evaporator is mounted at the freezer compartment in a box and the separating plate placed between the evaporators is fixed to this box. The fans are so designed that they direct the air in opposite directions. While the first part of the evaporator is directly cooling the freezer

compartment together with the fan, the cold air obtained from the second part of the evaporator is sent to the fresh food compartment by means of the channels on which holes are provided.

The cold air sent to the fresh food compartment is brought back to the evaporator by a collecting channel. The parts of evaporator are made of parallel plates that intersect with the heat transfer tube channels vertically; and the cold fluid transferred to the said channels by an inlet pipe, is sent to the compressor through an outlet pipe after it realizes the heat transfer by evaporating along the channels.

The object of the present invention is to provide the use of the cold air created by the two interconnected parts of the evaporator with different characteristics, for cooling separate volumes in a two-compartment refrigerator by using two fans.

The refrigerator with enhanced cooling efficiency realized in order to attain the above object of the present invention has been illustrated in the attached drawings, wherein: Figure 1, is the front view of the refrigerator with enhanced cooling efficiency; Figure 2, is the side view of the baffle plate; Figure 3, is the front view of the baffle plate.

The reference numerals of the components shown on the drawings are as follows: 1. Freezer compartment 2. Fresh food compartment 3. Freezer evaporator

4. Fresh food evaporator 5. Freezer fan 6. Fresh food fan 7. Freezer air return channel 8. Fresh food air return channel 9. Fresh food inlet of the blowing air channel 10. Baffle plate 11. Frame 12. Flap 13. Separator 14. Air channel 15. Projection 16. Stopper 17. Pin 18. Hole In two-compartment refrigerators comprising a freezer (1) and a fresh food compartment (2), the circulating air has two different temperature values. The temperature of the freezer compartment (1) which is used for the longterm storage of food is lower than that of the fresh food compartment (2) where fresh food and beverages are stored.

In order to provide a lower temperature in the freezer compartment (1) intervals between the fins and passages of the freezer evaporator (3) are designed more closely. Cold air obtained by the freezer evaporator (3) is transferred into the freezer compartment (1) with the help of the freezer fan (5) placed on the freezer evaporator (3).

Cold air obtained by the fresh food evaporator (4) is transferred into the fresh food compartment (2) with the help of the fresh food fan (6) which is placed on the fresh food evaporator (3). However the fresh food evaporator (4) has wider

intervals between the fins and passages. Furthermore, the front face of the fresh food evaporator (4) is closed in order to avoid the air which is warmer than that obtained from the freezer evaporator (3) and which is obtained from the fresh food evaporator (4), from influencing the freezer compartment (1).

These two evaporators (3 and 4) formed with different structures are connected in series to each other by welding and are placed between the rear side of the freezer compartment (1) and the refrigerator cabinet inner surface.

A separator (13) is provided between the freezer and fresh food evaporators (3 and 4) placed side by side, in order to prevent the mixing of the air at two different temperatures, so that, air with two separate temperature values can be transferred to the air channels (14) without mixing with each other.

Air channels (14) are formed between the freezer and fresh food compartments (1 and 2) and on the rear surface of the fresh food compartment (2) of the refrigerator. The air channel formed at the section between fresh food (2) and freezer (1) compartments, is divided in two channels, namely the freezer air return channel (7) and the fresh food air return channel (8).

There is a main blowing air channel (14) placed in the space between the refrigerator cabin inner surface and freezer compartment (1) and fresh food compartment (2) rear side. The inlet of this main blowing air channel (9) is located above the fresh food evaporator (4). This main blowing channel (14) is branched into the blowing air channels (14), the number and width of which are determined by the manufacturer, which are formed on the rear surface of the fresh food compartment (2). The entrance of the fresh food compartment (2) blowing air channels (14), may be located at the corners of the rear surface of the fresh food compartment (2) and at the center of the fresh food compartment (2) rear wall.

Air blown into the freezer compartment (1) by the fan (5) enters into the freezer air return channel (7) through a hole opened on the bottom of the freezer compartment (1) after completing its circulation and returns to the freezer compartment (1) after it passes over the freezer evaporator (3).

Cold air obtained from the fresh food evaporator (4) is blown by the fresh food fan (6) and reaches the main blowing channel (14) after passing through an inlet (9) located above the fresh food evaporator (4), and enters the fresh food (2) through the blowing air channels (14). Cold air present in the fresh food compartment (2) enters the fresh food air return channel (8) formed between the refrigerator freezer compartment (1) and the fresh food compartment (2) through the fresh food air return channel (8) inlet located at the ceiling of the fresh food compartment (2). Air contained in the fresh food air return channel (8) mixes into the air current by passing over the fresh food evaporator (4).

The inlet and outlet openings of the air channels (14) are provided with a baffle plate (10) that allows a one way air passage. This baffle plate (10) consists of a frame (11) and a flap (12) which is placed in the frame (11) and which opens only in one direction. The frame (11) is rectangular and at its lower side, has a projection (15) that prevents the flap (12) from opening from the reverse direction, and a stopper (16) that prevents the flap (12), from opening more than the desired range. Additionally, on both sides of the frame (11) a pair of holes (18) are formed on both ends of the flap (12), into which the pins (17) that facilitate the movement of the flap (12) in the frame (11) are fitted.

The baffle plates (10) are placed at the fresh food air channels inlet opening (9) as well as at the freezer air return channel (7) inlet opening and fresh food air return channel (8) inlet opening.

The flap (12) opens as the air blown by the freezer and fresh food fans (5 and 6), and completes the opening when it hits the stopper (16) provided on the

frame (11). When the air flow in the air channels (14) is stopped, the baffle plate flap (12) comes back to its original position and rests against the projection (15) provided on the lower part of the frame (11). In this case, air passage from the fresh food compartment (2) to the air channels (14) is prevented.