Eaton Intelligent Power Limited

Eaton Corporation

Brandon Dennis Biller

Douglas Anthony Hughes

Jim Kevin Spring

Matthew James Fortini

Jesse Drummond

Michael E Coates

Sarah E Behringer

Nathan DeVille

Witt Thanom

Joshua Kreucher

Leo Weeks

Anandha Krishnan C

James J Malone

Vinay Kelkar

Giridhar Jambare

Filip Marek

Jana Malatincova

Kevin Snyder

Nathan Paul Deville

An exhaust gas recirculation pump for an internal combustion engine that includes an electric motor assembly having an electric motor disposed within an electric motor housing. A roots device is coupled to the electric motor. The roots device includes a housing defining an internal volume. Rotors are disposed in the internal volume and connected to the electric motor. A bearing plate is attached to the housing wherein the bearing plate and an outer cover attached to the bearing plate defines an oil cavity. A transmission assembly is positioned on an opposing side of the housing relative to the electric motor and in the oil cavity.

Rear drive EGR pump

Exhaust gas recirculation pump () for an internal combustion engine that includes an electric motor () disposed within a housing (). A Roots device () is coupled to the electric motor () and includes a housing () defining an internal volume () in which rotors () are disposed and are connected to the electric motor (). The electric motor housing () includes a coolant path () formed therein which extends from a coolant inlet () to a coolant outlet (), both coupled to an engine coolant circulation system. The housing includes an oil path () formed therein. The oil path includes an oil inlet () extending to at least one oil outlet (). The oil inlet and outlet are coupled to an engine oil circulation system wherein the oil path () lubricates bearings () and a transmission assembly () of the exhaust gas recirculation pump ().

EGR pump system and control method of EGR pump

A method of operating an exhaust gas recirculation (EGR) pump for an internal combustion engine including: providing an EGR pump assembly including an electric motor coupled to a roots device having rotors, the EGR pump assembly operably connected to the internal combustion engine; providing a system controller; providing an EGR control unit linked to the EGR pump assembly; sending a speed command from the system controller to the EGR control unit; determining if a motor temperature and a module temperature are within a predetermined target; outputting a desired speed signal; determining if a motor speed is within a predetermined target; determining if a motor voltage is within a predetermined target; and outputting a current to the electric motor controlling the speed of the electric motor and regulating an EGR mass flow rate.

An EGR pump system includes an EGR pump assembly including an electric motor assembly coupled to a transmission assembly. A roots device is coupled to the electric motor through the transmission assembly. The roots device includes a housing defining an internal volume and rotors are disposed in the internal volume and connected to the transmission assembly. An EGR locking mechanism is attached to the EGR pump assembly. The EGR locking mechanism is selectively connected to the transmission assembly locking the transmission assembly and preventing rotation of the rotors.

EGR pump locking mechanism and method to lock EGR pump rotating group during engine braking

A method of operating exhaust gas recirculation pump for an internal combustion engine including: 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 is within a predetermined target in step Swherein when motor speed=predetermined target then; determining if a motor torque is within a predetermined target in step Swherein when motor torque=predetermined target then; determining if a motor temperature is within a predetermined target in step Swherein when motor temperature=predetermined target then; and maintaining operation of the exhaust gas recirculation pump.

An exhaust gas recirculation pump system for an internal combustion engine includes an EGR gas source and an electric motor assembly. A roots device is coupled to the electric motor. The roots device includes a housing defining an internal volume wherein the housing includes a radial inlet port receiving the EGR gas source and an outlet port expelling the EGR gas from the housing. Rotors are disposed in the internal volume and connected to the electric motor. A transmission housing is attached to the housing. The transmission housing includes journals formed therein receiving bearings that support the rotors on only a single end of the rotors.

EGR pump system with overhung rotors

A method of operating exhaust gas recirculation pump for an internal combustion engine including: 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 system controller; providing an EGR control unit linked to the EGR pump assembly; sending a speed command from the system controller to the EGR control unit; determining if a motor temperature and module temperature is within a predetermined target; outputting a desired speed signal; determining if a motor speed is within a predetermined target; determining if a motor voltage is within a predetermined target; and outputting a current to the electric motor controlling the speed of the electric motor and regulating an EGR mass flow rate.

A method of operating an exhaust gas recirculation pump for an internal combustion engine including: 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 lined to the EGR pump assembly; providing sensors linked to the EGR control unit; determining if a motor speed is within a predetermined target (step SI), wherein when the motor speed is within the predetermined target then; determining if a motor torque is within a predetermined target (step S) wherein when the motor torque is within the predetermined target then; determining if a motor temperature is within a predetermined target (step S) wherein when the motor temperature is within the predetermined target then; maintaining operation of the exhaust gas recirculation pump.

A grinding fixture assembly for use in grinding an end surface of a hose includes a housing, a bearing assembly disposed in the housing, and an insert assembly. The bearing assembly defines a central bore. The insert assembly is disposed in the central bore of the bearing assembly. The insert assembly includes an insert housing, an adapter and a bearing. The insert housing defines a thru-hole that extends through the insert housing. The thru-hole is disposed at an oblique angle in the insert housing. The adapter is disposed in the thru-hole of the insert housing. The adapter defines a bore that is adapted to receive an end portion of a hose. The bearing is disposed between the insert housing and the adapter. The bearing allows for rotation of the insert housing while the adapter is maintained rotationally stationary.

Growing community of inventors

Ferndale, MI, United States of America

Brandon Dennis Biller