The disclosed compressor is provided with a discharge chamber, a compression chamber, a partition, and a discharge reed valve.

The discharge reed valve contains an immobilized section, an intermediate section, and a valve section.

This is aided by a flexible valve (95) disposed at the discharge outlet of the discharge chamber to retard the entrance of water into the discharge chamber.

The disclosed compressor is provided with a discharge chamber, a compression chamber, a partition, and a discharge reed valve.

The disclosed compressor is provided with a discharge chamber, a compression chamber, a partition, and a discharge reed valve.

A unidirectional output valve is in fluid communication with the flexible metering housing.

The discharge reed valve contains an immobilized section, an intermediate section, and a valve section.

The discharge reed valve contains an immobilized section, an intermediate section, and a valve section.

A controlled or regulated pressure valve (24) is allocated to said positive displacement circulation pump (18) on the delivery side.

A waste valve element (6) is disposed in the waste valve housing (35) between the waste port (33) and a first waste valve seat (37) defined by the waste valve housing outlet (36).

At least the one displacer unit (2) has an adjustable displacement volume.

The discharge assembly includes a discharge port controlled by a second valve.

Discharge valve bores (57) or (87), each discharge valve bore receiving a discharge valve (43) and having a discharge valve bore axis (63) or (93).

A discharge opening (54) is formed in the discharge pipe (57).

absolute outlet pressure at pump outlet (kPa