Abstract: Various aspects of the present disclosure are directed to cylinder heads for a piston compressor. In one example embodiment, a cylinder head is disclosed including a suction chamber, a pressure chamber spatially separated from the suction chamber, a suction connection communicates with the suction chamber for supplying a compression medium, and a pressure connection communicates with the pressure chamber for discharging the compressed compression medium. The suction connection and/or the pressure connection may be adjusted into at least two positions on the cylinder head.

Abstract: An unloader ring 20 has a plurality of unloader fingers 21 passing through intake channels 16 of the intake valve 5 arranged in the ring-shaped intake chamber 11 such that the unloader ring 20 is guided on the wall 24, 31 of the intake chamber 11, where it is arranged displaceably by means of the circumferential surface 23 of the unloader ring 20 on the outside radially or by the circumferential surface 30 of the unloader ring 20 on the inside radially. A radial step 25 is provided on the circumferential surface 23 of the unloader ring on the outside radially or on the circumferential surface 30 of the unloader ring 20 on the inside radially, and a control chamber 26 is formed between the wall 24, 31 of the intake chamber 11 and the radial step 25, this control chamber being connected to a control line 27 for supplying a control medium into the control chamber 26.

Abstract: A cylinder head for a two-stage reciprocating piston compressor includes an intercooler that is designed as a cooled overflow channel between the pressure side of the first stage and the suction side of the second stage, wherein the overflow channel has a substantially slot-like cross-section, and the overflow channel is in addition divided by at least one indirectly cooled center rib so that therefrom at least two overflow channel portions and are created. The cylinder head has a cylinder head upper part and a cylinder head lower part, the cross-section of the indirectly cooled center rib is divided in its longitudinal extent thereby forming a passage gap between the overflow channels and that run on both sides, and one portion of the center rib is formed from the cylinder head upper part and the other portion of the center rib is formed from the cylinder head lower part.

Abstract: The hollow valve plate 1 of a piston compressor for liquid-cooled reed valves comprises a single half-shell 3 with cooling channels 4 which are open on the cylinder side, which said half-shell is covered by a reed plate 2 which is preferably welded or glued at least along the cooling channels 4 and has in the area of the suction openings 5 in each case one suction reed 6 which is machined out and is integrally connected on one side. Production and assembly are thereby simplified and the clearance is reduced.

Abstract: The hollow valve plate (1) of a piston compressor includes a single half-shell (3) with cooling channels (4, 5) that are open toward the side of the pressure valves (8), with said half-shell being covered by a reed plate 2 that is preferably welded or glued at least along the cooling channels (4, 5), and that is formed as a lift-stop (9) for the inserted closing plates (10) in the area or the pressure valves (8). This results in a simplification of the production and assembly of such valve plates.

Abstract: The invention relates to a cylinder head (1) for a two-stage reciprocating piston compressor, comprising an intercooler (9) that is designed as a cooled overflow channel (14) between the pressure side of the first stage and the suction side of the second stage, wherein the overflow channel (14) has a substantially slot-like cross-section, and the overflow channel (14) is in addition divided by at least one indirectly cooled center rib (15) so that therefrom at least two overflow channel portions (14?) and (14?) are created, wherein the cylinder head (1) has a cylinder head upper part (2) and a cylinder head lower part (3), the cross-section of the indirectly cooled center rib (15) is divided in its longitudinal extent thereby forming a passage gap between the overflow channels (14?) and (14?) that run on both sides, and one portion of the center rib (15) is formed from the cylinder head upper part (2) and the other portion of the center rib (15) is formed from the cylinder head lower part (3).

Abstract: To implement a very compact cylinder head having an integrated unloader, it is provided that a unloader ring 20 having a plurality of unloader fingers 21 passing through the intake channels 16 of the intake valve 5 is arranged in the ring-shaped intake chamber 11 such that the unloader ring 20 is guided on the wall 24, 31 of the intake chamber 11, where it is arranged displaceably by means of the circumferential surface 23 of the unloader ring 20 on the outside radially or by the circumferential surface 30 of the unloader ring 20 on the inside radially; a radial step 25 is provided on the circumferential surface 23 of the unloader ring on the outside radially or on the circumferential surface 30 of the unloader ring 20 on the inside radially, and a control chamber 26 is formed between the wall 24, 31 of the intake chamber 11 and the radial step 25, this control chamber being connected to a control line 27 for supplying a control medium into the control chamber 26 and a lower stop (32) for the unloader ring (2

Abstract: The hollow valve plate (1) of a piston compressor includes a single half-shell (3) with cooling channels (4, 5) that are open toward the side of the pressure valves (8), with said half-shell being covered by a reed plate 2 that is preferably welded or glued at least along the cooling channels (4, 5), and that is formed as a lift-stop (9) for the inserted closing plates (10) in the area or the pressure valves (8). This results in a simplification of the production and assembly of such valve plates.

Abstract: The hollow valve plate 1 of a piston compressor for liquid-cooled reed valves comprises a single half-shell 3 with cooling channels 4 which are open on the cylinder side, which said half-shell is covered by a reed plate 2 which is preferably welded or glued at least along the cooling channels 4 and has in the area of the suction openings 5 in each case one suction reed 6 which is machined out and is integrally connected on one side. Production and assembly are thereby simplified and the clearance is reduced.