US 12,473,912 B2
Axial load in helical trochoidal rotary machines
Greg John Montie, Squamish (CA); Peter Thomas Christopher Suke, Squamish (CA); and Bryan Allen Callaway, Schaumburg, IL (US)
Assigned to Rotoliptic Technologies Incorporated, Squamish (CA)
Filed by Rotoliptic Technologies Incorporated, Squamish (CA)
Filed on Sep. 20, 2023, as Appl. No. 18/470,625.
Application 18/470,625 is a continuation of application No. 17/565,454, filed on Dec. 30, 2021, granted, now 11,802,558.
Claims priority of provisional application 63/132,476, filed on Dec. 30, 2020.
Prior Publication US 2024/0093686 A1, Mar. 21, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F04C 2/107 (2006.01); F04C 15/00 (2006.01)
CPC F04C 2/1076 (2013.01) [F04C 15/0042 (2013.01); F04C 15/0057 (2013.01); F04C 15/0061 (2013.01); F04C 2240/10 (2013.01); F04C 2240/20 (2013.01); F04C 2250/20 (2013.01); F04C 2250/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A helical trochoidal rotary pump comprising:
an outer member having an outer member helical profile and an outer member axis; and
a rotor disposed within said outer member, said rotor having a rotor helical profile and a rotor axis;
said rotor having a rotor shape at any cross-section transverse to said rotor axis that is based on a trochoidal shape, or said outer member having an outer member shape at any cross-section transverse to said outer member axis that is based on a trochoidal shape;
wherein said helical trochoidal rotary pump is configured so that during operation of said helical trochoidal rotary pump:
said rotor undergoes planetary motion relative to said outer member;
an axial load on said helical trochoidal rotary pump varies with differential pressure across said helical trochoidal rotary pump; and
when a threshold differential pressure across said helical trochoidal rotary pump is reached, a corresponding axial load on said helical trochoidal rotary pump causes a change in a mechanical configuration of said helical trochoidal rotary pump.