公开(公告)号：US10087800B2

公开(公告)日：2018-10-02

申请号：US15300721

申请日：2015-03-10

Applicant: Nissan Motor Co., Ltd.

Inventor： Toru Fukami ,  Satoshi Ogihara ,  Yasukimi Toda ,  Hiroyuki Nagai

IPC: F01N3/02 ,  F01N3/04 ,  F01N3/28 ,  F01N5/02 ,  F01N13/00 ,  F01N3/10

Abstract: An engine exhaust apparatus includes an exhaust passage for flowing exhaust gas emitted from an engine, a flow rectifier for rectifying the flow of the exhaust gas, and an exhaust heat recovery unit disposed in the exhaust passage downstream of the flow rectifier. The exhaust heat recovery unit is provided with an exhaust heat recovery portion and a cooling portion to cool the exhaust heat recovery portion. The engine exhaust apparatus further includes a first diameter reducing portion gradually reduced in diameter toward the exhaust heat recovery unit from the flow rectifier, and a second diameter reducing portion gradually reduced in diameter toward the downstream from the exhaust heat recovery unit.

公开(公告)号：US10012123B2

公开(公告)日：2018-07-03

申请号：US15129935

申请日：2015-03-25

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Toru Fukami ,  Satoshi Ogihara ,  Yasukimi Toda ,  Hiroyuki Nagai ,  Shinichirou Mizoguchi

IPC: F01N3/28 ,  F01N5/02 ,  F01N3/10 ,  F01P3/18 ,  F01P11/14 ,  B01D53/94 ,  F01P11/20

CPC classification number: F01N3/2889 ,  B01D53/9454 ,  F01N3/101 ,  F01N5/02 ,  F01N2240/20 ,  F01N2470/24 ,  F01P3/18 ,  F01P11/14 ,  F01P2011/205 ,  Y02T10/16 ,  Y02T10/22

Abstract: An exhaust device of an engine, with an exhaust path to lead exhaust gas discharged from the engine to outside, the exhaust device comprising: an exhaust heat collector being configured to collect heat from the exhaust gas, and a cooling part being configured to cool down the exhaust heat collecting part from an outer peripheral side via a cooling fluid; and an exhaust gas flow controlling member in a cylindrical shape, comprising an inlet part and an outlet part where the inflow of the exhaust gas is discharged to an upstream side of the exhaust heat collecting part. An opening diameter of the outlet part is arranged to be smaller than an outer diameter of the exhaust heat collecting part. The exhaust gas flow controlling member is placed so that an open end of the outlet part opposes a central portion of an upstream end plane of the exhaust heat collecting part. The open end of the outlet part and the upstream end plane of the exhaust heat collecting part are a predetermined distance apart.

公开(公告)号：US10450938B2

公开(公告)日：2019-10-22

申请号：US15312750

申请日：2014-05-23

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Hiroyuki Nagai

IPC: F01P7/16 ,  F01P3/02 ,  F01N5/02 ,  F01P3/20 ,  F01P11/20 ,  F02B29/04

Abstract: A cooling circuit for internal combustion engines includes an internal combustion engine, a pressure-feeding unit for feeding coolant, which cools the internal combustion engine under pressure, a valve unit having a plurality of heat exchangers connected in parallel thereto, an exhaust heat recovery system for recovering heat from exhaust air of the internal combustion engine by the coolant, a first circulation circuit including the pressure-feeding unit, the valve unit and the exhaust heat recovery system, and a second circulation circuit including the pressure-feeding unit and the exhaust heat recovery system.

公开(公告)号：US10400660B2

公开(公告)日：2019-09-03

申请号：US15112705

申请日：2014-02-20

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Hiroyuki Nagai ,  Toru Fukami

IPC: F01P7/16 ,  F01N3/02 ,  F01N5/02 ,  F01P3/20 ,  F01P5/10 ,  F01P7/14 ,  F02M26/22

Abstract: A cooling system controller controls a cooling system at least having a coolant pump (3) configured to supply a coolant to an internal combustion engine, a heat radiator (9) configured to cool the coolant, and an exhaust heat recovery system (6) configured to perform in heat exchange between the exhaust gas and the coolant. In addition, the cooling system controller (12) has a unit configured to control the coolant flow rate, a unit (13) configured to obtain a coolant temperature or pressure of the internal coolant passage of the engine, and a unit configured to obtain an internal coolant temperature or pressure of the exhaust heat recovery system. Furthermore, the coolant flow rate is restricted at a cold start of the internal combustion engine, and the restriction of the coolant flow rate is released on the basis of the coolant temperature or pressure of the engine coolant passage and the internal coolant temperature or pressure of the exhaust heat recovery system.

公开(公告)号：US20250042300A1

公开(公告)日：2025-02-06

申请号：US18719667

申请日：2022-12-12

Applicant: Nissan Motor Co., Ltd.

Inventor： Hiroyuki Nagai ,  Kensuke Sasaki

IPC: B60L58/25 ,  B60L1/00 ,  B60L58/26

Abstract: A vehicle has a motor that drives the vehicle, a battery that allows supplying an electric power to the motor, and a power conversion device disposed between the motor and the battery. An execution command of ripple charging and discharging that alternately charges and discharges multiple times with the battery is output to the power conversion device when a temperature of the battery is lower than a predetermined threshold temperature, and the flow rate of the heating medium is controlled such that the flow rate of the heating medium is reduced compared with a case where the temperature of the battery is lower than the temperature of the heating medium when the temperature of the battery is higher than the temperature of the heating medium that exchanges heat with the battery while the ripple charging and discharging is executed.