US 11,668,269 B2
EGR pump system and control method of EGR pump
Douglas Anthony Hughes, Novi, MI (US); Brandon Dennis Biller, Ferndale, MI (US); Jim Kevin Spring, Brighton, MI (US); Jesse Drummond, Rochester Hills, MI (US); and Matthew Fortini, Fivonia, MI (US)
Assigned to Eaton Intelligent Power Limited, Dublin (IE)
Appl. No. 16/962,459
Filed by EATON INTELLIGENT POWER LIMITED, Dublin (IE)
PCT Filed Jan. 17, 2019, PCT No. PCT/EP2019/051132
§ 371(c)(1), (2) Date Jul. 15, 2020,
PCT Pub. No. WO2019/141767, PCT Pub. Date Jul. 25, 2019.
Claims priority of provisional application 62/736,161, filed on Sep. 25, 2018.
Claims priority of provisional application 62/733,340, filed on Sep. 19, 2018.
Claims priority of provisional application 62/674,872, filed on May 22, 2018.
Claims priority of provisional application 62/662,521, filed on Apr. 25, 2018.
Claims priority of provisional application 62/660,497, filed on Apr. 20, 2018.
Claims priority of provisional application 62/629,461, filed on Feb. 12, 2018.
Claims priority of provisional application 62/618,412, filed on Jan. 17, 2018.
Prior Publication US 2021/0071667 A1, Mar. 11, 2021
Int. Cl. F02M 26/49 (2016.01); F02M 26/34 (2016.01); F04C 28/06 (2006.01); F04C 28/08 (2006.01); F04C 18/12 (2006.01); F02M 26/33 (2016.01); F02M 26/05 (2016.01); F02M 26/47 (2016.01); F02M 26/50 (2016.01); F02D 41/00 (2006.01); F02B 1/14 (2006.01); F02B 3/06 (2006.01); F02B 33/38 (2006.01); F02B 39/10 (2006.01); F02B 33/34 (2006.01); F04C 18/14 (2006.01); F04C 29/02 (2006.01); F04C 29/04 (2006.01); F02M 26/00 (2016.01)
CPC F02M 26/49 (2016.02) [F02B 1/14 (2013.01); F02B 3/06 (2013.01); F02B 33/34 (2013.01); F02B 33/38 (2013.01); F02B 39/10 (2013.01); F02D 41/006 (2013.01); F02D 41/0007 (2013.01); F02D 41/0065 (2013.01); F02M 26/05 (2016.02); F02M 26/33 (2016.02); F02M 26/34 (2016.02); F02M 26/47 (2016.02); F02M 26/50 (2016.02); F04C 18/126 (2013.01); F04C 28/06 (2013.01); F04C 28/08 (2013.01); F02M 26/00 (2016.02); F02M 2026/004 (2016.02); F04C 18/14 (2013.01); F04C 29/02 (2013.01); F04C 29/04 (2013.01); Y02T 10/12 (2013.01); Y02T 10/40 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of operating an exhaust gas recirculation (EGR) pump for an internal combustion engine comprising:
providing an EGR pump assembly including an electric motor coupled to a roots device having rotors, the EGR pump operably connected to an internal combustion engine;
providing an EGR control unit linked to the EGR pump assembly;
providing sensors linked to the EGR control unit;
determining if a motor speed equals a predetermined target, wherein, when the motor speed equals the predetermined target then;
determining if a motor torque equals a predetermined target, wherein, when the motor torque equals the predetermined target then;
determining if a motor temperature equals a predetermined target, wherein, when the motor temperature equals the predetermined target then;
maintaining operation of the exhaust gas recirculation pump.