Planetary rotor machine manifold

A manifold for introducing a fluid into or discharging a fluid from a planetary rotor machine, the planetary rotor machine comprising 4 helical rotors that create a cavity for compressing or expanding the fluid, the manifold comprising:

• a head plate including a fluid flow opening having a center coaxial with a central axis of the planetary rotor machine, the fluid flow opening comprising 4 ports that each correspond to one of the rotors, wherein each of the ports comprises:
• an inwardly curving inner side extending between a starting point and an ending point;
• a first lateral arcuate side extending from the starting point of the inner side and forming an acute angle with the inner side;
• and
• a second lateral arcuate side extending from the ending point of the inner side and forming an acute angle with the inner side, wherein the second lateral arcuate side is a mirror image of the first lateral arcuate side;
• wherein the manifold substantially prevents the fluid from bypassing the cavity created by the rotors.

A planetary rotor machine for compressing or expanding a fluid, the planetary rotor machine comprising:

• a core extending along a central axis of the planetary rotor machine and coaxial with the central axis;
• a plurality of helical rotors positioned around the core, the helical rotors creating a cavity around the core in which the fluid travels;
• and
• a manifold for introducing the fluid into the cavity or discharging the fluid from the cavity, the manifold comprising:
• a head plate including a fluid flow opening having a center coaxial with the central axis of the planetary rotor machine, the fluid flow opening comprising a plurality of ports with each of the ports corresponding to one of the helical rotors, wherein each of the ports comprises:
• an inwardly curving inner side extending between a starting point and an ending point;
• a first lateral arcuate side extending from the starting point of the inner side and forming an acute angle with the inner side;
• and
• a second lateral arcuate side extending from the ending point of the inner side and forming an acute angle with the inner side, wherein the second lateral arcuate side is a mirror image of the first lateral arcuate side,
• wherein the manifold substantially prevents the fluid from bypassing the cavity created by the rotors.