One-way valve device
A one-way valve device for air compressors including a disc-shaped element having a plurality of holes for flow of the air distributed along a portion having a circular crown extension, a sheet superposed on the disc-shaped element for occluding the holes, the sheet being susceptible to lifting due to the pushing action exerted by the air flowing through the holes, a spring opposing the lifting of the sheet, a containment and covering dome.
1. A one-way valve device for air compressors comprising:
a disc-shaped element including having a plurality of holes for flow of the air, the holes being distributed along a portion having a circular crown extension,
a sheet superposed on the disc-shaped element for occluding the holes, the sheet being susceptible to lifting due to a pushing action exerted by the air flowing through the holes,
a spring opposing the lifting of the sheet,
a containment and covering dome, the containment and covering dome housing the spring and the sheet and including:
an externally threaded cylindrical first portion:
a cylindrical second portion including at least one lateral surface;
a plurality of first openings for the flow of the air, the first openings being positioned on the at least one lateral surface.
2. The valve device according to claim 1 , wherein the sheet is shaped as a circular crown and includes a plurality of radial protruding portions, the radial protruding portions being configured for centering the sheet with respect to a cylindrical inner surface of the containment and covering dome.
3. The valve device according to claim 2 , wherein the radial protruding portions are distributed at equal angular intervals along a circumference of the sheet.
4. The valve device according to claim 1 , wherein the containment and covering done includes interposed between the externally threaded cylindrical first portion and the cylindrical second portion, a gripping zone with a hexagonal shape configured to engage a clamping tool.
5. The valve device according to claim 1 , wherein the containment and covering dome includes a top third portion, emerging from the cylindrical second portion and including a second opening for flow of the air.
6. The valve device according to claim 5 , wherein the third top third portion includes a covering plate configured to direct the air flowing through the second opening, transversally relative to a central axis of the cylindrical second portion.
7. The valve device according to claim 1 , wherein the disc-shaped element includes inner and outer concentric edges configured to make contact with the sheet.
8. A valve head for a compressor comprising the valve device according to claim 1 .
9. The valve head according to claim 8 , and further comprising at least one flexible lamina valve.
10. A one-way valve device for air compressors comprising:
a disc-shaped element including a plurality of holes for flow of the air, the holes being distributed along a portion having a circular crown extension,
a sheet superposed on the disc-shaped element for occluding the holes, the sheet being susceptible to lifting due to a pushing action exerted by the air flowing through the holes,
a spring opposing the lifting of the sheet,
a containment and covering dome, the containment and covering dome housing the spring and the sheet and including:
an externally threaded cylindrical first portion:
a cylindrical second portion including a plurality of laterally oriented first openings for the flow of the air.
11. The valve device according to claim 10 , wherein the sheet is shaped as a circular crown and includes a plurality of radial protruding portions, the radial protruding portions being configured for centering the sheet with respect to a cylindrical inner surface of the containment and covering dome.
12. The valve device according to claim 11 , wherein the radial protruding portions are distributed at equal angular intervals along a circumference of the sheet.
13. The valve device according to claim 10 , wherein the containment and covering dome includes, interposed between the externally threaded cylindrical first portion and the cylindrical second portion, a gripping zone with a hexagonal shape configured to engage a clamping tool.
14. The valve device according to claim 10 , wherein the containment and covering dome includes a top third portion, emerging from the cylindrical second portion and including a second opening for flow of the air.
15. The valve device according to claim 14 , wherein the top third portion includes a covering plate configured to direct the air flowing through the second opening, transversally relative to a central axis of the cylindrical second portion.
16. The valve device according to claim 10 , wherein the disc-shaped element includes inner and outer concentric edges configured to make contact with the sheet.
17. A valve head for a compressor comprising the valve device according to claim 10 .
18. The valve head according to claim 17 , and further comprising at least one flexible lamina valve.