公开(公告)号：US20220213852A1

公开(公告)日：2022-07-07

申请号：US17607671

申请日：2020-04-30

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Brandon Dennis Biller ,  Jim Kevin Spring ,  Douglas Anthony Hughes ,  Joshua Kreucher ,  Kevin Snyder

IPC: F02M26/34 ,  F01M11/02 ,  F01M9/10 ,  F04C18/12

Abstract: 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.

公开(公告)号：US11840992B2

公开(公告)日：2023-12-12

申请号：US17607671

申请日：2020-04-30

Applicant: Eaton Intelligent Power Limited

Inventor： Brandon Dennis Biller ,  Jim Kevin Spring ,  Douglas Anthony Hughes ,  Joshua Kreucher ,  Kevin Snyder

IPC: F02M26/34 ,  F01M9/10 ,  F01M11/02 ,  F04C18/12

CPC classification number: F02M26/34 ,  F01M9/10 ,  F01M11/02 ,  F04C18/126 ,  F04C2240/30 ,  F04C2240/40

Abstract: 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.

公开(公告)号：US12209544B1

公开(公告)日：2025-01-28

申请号：US18732382

申请日：2024-06-03

Applicant: Eaton Intelligent Power Limited

Inventor： James E. McCarthy, Jr. ,  Mihai Dorobantu ,  Kevin Snyder

IPC: F02D41/00 ,  F02B37/16 ,  F02B37/22 ,  F02B39/04 ,  F02B39/10 ,  F02B39/12 ,  F02D13/02 ,  F02D13/04

Abstract: A method of operating a system including a hydrogen internal combustion engine and a supercharger between a normal operating mode and an engine braking mode. In the normal operating mode, the supercharger operates at a first rotational speed to deliver air to an intake manifold of the engine. In the engine braking mode, the supercharger operates at a second rotational speed to deliver air to the intake manifold and a restriction is provided to increase a pressure ratio across the supercharger.