US 12,460,564 B2
Crankcase ventilation systems including integrated sensors and controller
Anthony Barreteau, Quimper (FR); Chirag D. Parikh, Madison, WI (US); and Benjamin L. Scheckel, Stoughton, WI (US)
Assigned to Cummins Filtration Inc., Nashville, TN (US)
Filed by Cummins Filtration Inc., Nashville, TN (US)
Filed on Feb. 27, 2024, as Appl. No. 18/588,900.
Application 18/588,900 is a continuation of application No. PCT/US2022/040423, filed on Aug. 16, 2022.
Claims priority of provisional application 63/239,065, filed on Aug. 31, 2021.
Prior Publication US 2024/0200478 A1, Jun. 20, 2024
Int. Cl. F01M 11/03 (2006.01); F01M 13/02 (2006.01); F01M 13/04 (2006.01); F01M 13/00 (2006.01)
CPC F01M 13/028 (2013.01) [F01M 13/04 (2013.01); F01M 2013/0083 (2013.01); F01M 2013/0438 (2013.01); F01M 2250/60 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotating crankcase ventilation system, comprising:
a housing comprising an inlet and an outlet;
a motor comprising a stator and a rotor;
a shaft, a first end of the shaft coupled to the rotor and configured to rotate in response to rotation of the rotor;
a filter element coupled to the shaft;
a sensor configured to measure at least one operating parameter of the rotating crankcase ventilation system, wherein the sensor comprises a pressure sensor coupled to the housing proximate the inlet and wherein the at least one operating parameter comprises an inlet pressure of a fluid flowing into the inlet, the sensor configured to measure the inlet pressure; and
a controller operatively coupled to the sensor and the motor, the controller configured to receive the at least one operating parameter and selectively adjust operation of the motor to adjust the rotation of the rotor, and thereby the filter element, based on the at least one operating parameter, wherein the controller is configured to, responsive to the measured inlet pressure being greater than or equal to a predetermined threshold pressure, activate the motor.