Reciprocating-type compressor for refrigeration and/or conditioning and/or heat pump system

A method of installation of a refrigeration and/or conditioning and/or heat pump system, the method comprising:

• providing a plurality of compressors, each of the plurality of compressors comprising a compressor structure for the refrigeration and/or the conditioning and/or the heat pump systems, the compressor structure comprising:
• a casing in which there is defined at least one compression section, each compression section comprising at least one cylinder and a corresponding compression piston;
• a head provided on said casing, defining a delivery chamber immediately downstream of said at least one compression section, and adapted to receive a compressed fluid from said at least one compression section;
• an intake zone from where a fluid to be compressed in the at least one cylinder of said at least one compression section is introduced;
• a delivery tap at an operational outlet of said delivery chamber;
• and a check valve, placed between said operational outlet of said delivery chamber and said delivery tap, adapted to prevent the return of fluid into the delivery chamber from said delivery tap, wherein said check valve is a gravity-closing swing check valve;
• and connecting each of the plurality of compressors in parallel to one another, to a system branch, wherein the respective delivery taps of each of the plurality of compressors are connected to one another in parallel, wherein each of said plurality of compressors are connected to a common delivery conduit, wherein each of said plurality of compressors have the same delivery pressure, and at least some of said plurality of compressors have a common intake branch.

A compressor structure for refrigeration and/or conditioning and/or heat pump systems, the compressor structure comprising:

• a casing in which there is defined at least one compression section, each compression section comprising at least one cylinder and a corresponding compression piston,
• a head provided on said casing, defining a delivery chamber immediately downstream of said at least one compression section, and adapted to receive a compressed fluid from said at least one compression section,
• an intake zone from where a fluid to be compressed in the at least one cylinder of said at least one compression section is introduced,
• a delivery tap at an operational outlet of said delivery chamber, and
• a check valve, placed between said operational outlet of said delivery chamber and said delivery tap, adapted to prevent the return of fluid into the delivery chamber from said delivery tap, wherein said check valve is a swing check valve, wherein said swing check valve comprises a closing flap hinged at a side of the operational outlet, said closing flap lifting with a flow from said delivery chamber towards said delivery tap and closing against the operational outlet due to gravity when the flow stops.

A compressor structure for refrigeration and/or conditioning and/or heat pump systems, the compressor structure comprising:

• a casing in which there is defined at least one compression section, each compression section comprising at least one cylinder and a corresponding compression piston,
• a head provided on said casing, defining a delivery chamber immediately downstream of said at least one compression section, and adapted to receive a compressed fluid from said at least one compression section,
• an intake zone from where a fluid to be compressed in the at least one cylinder of said at least one compression section is introduced,
• a delivery tap at an operational outlet of said delivery chamber, and
• a check valve, placed between said operational outlet of said delivery chamber and said delivery tap, adapted to prevent the return of fluid into the delivery chamber from said delivery tap, wherein said check valve is housed in a compartment comprising a floor, wherein the operational outlet is within the floor, and a ceiling against which said flap contacts in an open position, a closing face of the flap is inclined with respect to an axis of the operational outlet.