Cylinder head arrangement for a piston compressor

Abstract

The invention concerns a cylinder head arrangement for a piston compressor, with a cylinder block, in which a compression chamber is formed, which is delimited on one side by a valve plate that is clamped between the cylinder block and a cylinder head cover. In order to provide a cylinder head arrangement that has a high degree of tightness and can be manufactured in a cost-effective manner, the valve plate (6) has on at least one side at least one bead (40) projecting from the valve plate surface (21) concerned.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages, characteristics and details of the invention occur from the following description, in which an embodiment is described in detail with reference to the drawings, showing:

FIG. 1 is a cylinder head arrangement with a valve plate in cross-section;

FIG. 2 is a top view of the valve plate in FIG. 1;

FIG. 3 is a bottom view of the valve plate in FIG. 1;

FIG. 4 is a section along the line IV-IV in FIG. 3;

FIG. 5 is an enlarged view of a section V of FIG. 4; and

FIG. 6 to 9 are different embodiments of the beads in cross-section.

Claims

1. A cylinder head arrangement for a piston compressor, with a cylinder block, in which a compression chamber is formed, which is delimited on one side by a valve plate that is clamped between the cylinder block and a cylinder head cover, wherein on at least one side the valve plate has at least one bead projecting from the valve plate surface concerned.

2. The cylinder head arrangement according to claim 1, wherein the bead extends along a closed line.

3. The cylinder head arrangement according to claim 1, wherein both sides of the valve plate have a bead projecting from the corresponding valve plate surface, the beads extending along a substantially closed line.

4. The cylinder head arrangement according to claim 1, wherein the valve plate is made as a sintered part.

5. The cylinder head arrangement according to claim 1, wherein at least on one side, particularly on both sides, the valve plate has at least one, particularly several spacer pieces.

6. The cylinder head arrangement according to claim 5, wherein the spacer piece(s) project(s) somewhat more from the corresponding valve plate surface in question than the related bead.

7. The cylinder head arrangement according to claim 1, wherein several through-holes are made in the valve plate.

8. The cylinder head arrangement according to claim 1, wherein a valve seat of a suction valve and a valve seat of a discharge valve are impressed in the valve plate.

9. The cylinder head arrangement according to claim 1, wherein a gasket is located between the valve plate and the cylinder block and between the valve plate and the cylinder head cover, respectively.

10. The cylinder head arrangement according to claim 9, wherein the extension of the bead perpendicularly to the belonging valve plate surface is smaller than the thickness of the gasket concerned.

11. The cylinder head arrangement according to claim 10, wherein the extension of the bead perpendicularly to the belonging valve plate surface is 5 to 75%, particularly 25 to 50% of the thickness of the gasket concerned.

12. The cylinder head arrangement according to claim 1, wherein on the valve plate surface facing the cylinder block the bead surrounds a projection of the opening of the compressing chamber on this valve plate surface.

13. The cylinder head arrangement according to claim 1, wherein on the valve plate surface facing the cylinder block the bead surrounds at least one suction opening and at least one pressure opening.

14. The cylinder head arrangement according to claim 1, wherein on the valve plate surface facing the cylinder head cover the bead surrounds a projection of the opening of a discharge chamber on this valve plate surface.