Modular Pump and Pump Modules for Modular Pumps

Abstract

A modular pump for compressible gases includes a first pump module having a crankcase defining an interior space, a crankshaft extending along a crank axis and supported by the crankcase, a first cylinder assembly coupled to the crankcase and extending along a first cylinder axis perpendicular to the crank axis, and a second cylinder assembly coupled to the crankcase and extending along a second cylinder axis opposite the first cylinder axis. The modular pump also includes a second pump module arranged axially adjacent to the first pump module and having a crankshaft extending along the crank axis. The modular pump further includes a coupler connecting the crankshaft of the first pump module to the crankshaft of the second pump module, wherein the coupler defines an angular phase offset between the crankshafts.

Dependencies are inferred from the claim text.