Head fastening arrangement of cooling compressor

1. Head fastening arrangement of cooling compressor comprising:

a head arranged by a cylinder of the cooling compressor and having a head lid,

at least one supporting device also arranged by the cylinder;

at least one element of union of the head lid to the supporting device, wherein the element of union is capable of transmitting force that presses the head lid and the supporting device against the cylinder;

characterized by the fact that:

the head is arranged at a front of the cylinder and the supporting device is arranged at a rear part of the cylinder;

wherein the at least one supporting device is arranged at an opposite position to the head and comprises spare contact regions arranged on a surface of the at least one supporting device faced to the cylinder.

2. Arrangement, according to claim 1 , characterized by the fact that the supporting device comprises at least four spare contact regions.

3. Arrangement, according to claim 2 , characterized by the fact that the supporting device comprises an arched body, and

that a first and a second spared contact region are arranged, respectively, in a first end zone and in a second end zone of the arched body of the supporting device, further wherein a third and fourth contact regions are arranged in a retreated area of the arched body of the supporting device.

4. Arrangement according to claim 3 , characterized by the fact that in the retreated area of the arched body of the supporting device the retreated area is also provided with a rigidity segment, which comprises an arc format and is arranged between the third and fourth contact regions, being connected to both.

5. Arrangement, according to claim 1 , characterized by the fact that the supporting device comprises an arched body.

6. Arrangement, according to claim 1 , characterized by the fact that the element of union is a screw associated with at least one thread, wherein the head lid is endowed with at least one perforated projecting tab and the supporting device is endowed with at least one fastening hole, further wherein the screw is configured to traverse the said fastening hole and the perforation of the said at least one perforated projecting tab.

7. Arrangement, according to claim 6 , characterized by the fact that the element of union comprises two screws, each one associated with at least one thread provided by the fastening hole of the supporting device.

8. Arrangement, according to claim 6 , characterized by the fact that the supporting device comprises at least two fastening holes located in opposite positions to each other; the head lid comprises at least two perforated projecting tabs located in opposite positions to each other; being the perforated projecting tabs and the fastening holes aligned one in relation to other.

9. A head fastening arrangement of a cooling compressor, comprising:

a head arranged by a cylinder of the cooling compressor and having a head lid, at least one supporting device also arranged by the cylinder; and

at least one element of union of the head lid to the supporting device, wherein the element of union is capable of transmitting force that presses the head lid and the supporting device against the cylinder;

wherein the at least one supporting device is arranged at an opposite position to the head and comprises spare contact regions arranged on a surface of the at least one supporting device faced to the cylinder; and

wherein the supporting device comprises at least four spare contact regions.

10. The head fastening arrangement of a cooling compressor of claim 9 , wherein the supporting device comprises an arched body; and

wherein a first and a second spared contact region are arranged, respectively, in a first end zone and in a second end zone of the arched body of the supporting device, further wherein third and fourth contact regions are arranged in a retreated area of the arched body of the supporting device.

11. The head fastening arrangement of a cooling compressor of claim 10 , wherein in the retreated area of the arched body of the supporting device the retreated area is also provided with a rigidity segment, which comprises an arc format and is arranged between the third and fourth contact regions, being connected to both the third and fourth contact regions.

12. The head fastening arrangement of a cooling compressor of claim 9 , wherein the head is arranged at a front of the cylinder and the supporting device is arranged at a rear part of the cylinder.

13. The head fastening arrangement of a cooling compressor of claim 9 , wherein the element of union is a screw associated with at least one thread, wherein the head lid is endowed with at least one perforated projecting tab and the supporting device is endowed with at least one fastening hole, further wherein the screw is configured to traverse the said fastening hole and the perforation of the at least one projecting tab.

14. The head fastening arrangement of a cooling compressor of claim 13 , wherein the element of union comprises two screws, each one associated with at least one thread provided by the fastening hole of the supporting device.

15. A head fastening arrangement of a cooling compressor, comprising:

a head arranged by a cylinder of the cooling compressor and having a head lid, at least one supporting device also arranged by the cylinder; and

at least one element of union of the head lid to the supporting device, wherein the element of union is capable of transmitting force that presses the head lid and the supporting device against the cylinder;

wherein the at least one supporting device is arranged at an opposite position to the head and comprises spare contact regions arranged on a surface of the at least one supporting device faced to the cylinder; and

wherein the supporting device comprises at least four spare contact regions;

wherein the supporting device comprises an arched body; and

wherein a first and a second spared contact region are arranged, respectively, in a first end zone and in a second end zone of the arched body of the supporting device, further wherein third and fourth contact regions are arranged in a retreated area of the arched body of the supporting device.

16. The head fastening arrangement of a cooling compressor of claim 15 , wherein in the retreated area of the arched body of the supporting device the retreated area is also provided with a rigidity segment, which comprises an arc format and is arranged between the third and fourth contact regions, being connected to both the third and fourth contact regions.

17. The head fastening arrangement of a cooling compressor of claim 15 , wherein the head is arranged at a front of the cylinder and the supporting device is arranged at a rear part of the cylinder.

18. The head fastening arrangement of a cooling compressor of claim 15 , wherein the element of union is a screw associated with at least one thread, wherein the head lid is endowed with at least one perforated projecting tab and the supporting device is endowed with at least one fastening hole, further wherein the screw is configured to traverse the said fastening hole and the perforation of the at least one projecting tab.

19. The head fastening arrangement of a cooling compressor of claim 18 , wherein the element of union comprises two screws, each one associated with at least one thread provided by the fastening hole of the supporting device.

20. The head fastening arrangement of a cooling compressor of claim 18 , wherein the supporting device comprises at least two fastening holes located in opposite positions to each other; the head lid comprises at least two perforated projecting tabs located in opposite positions to each other; being the perforated projecting tabs and the fastening holes aligned one in relation to other.