Structure of engine system

Patent metadata

Field	Value
Publication number	US-2016169166-A1
Application number	US-201514724464-A
Country	US
Kind code	A1
Filing date	May 28, 2015
Priority date	Dec 10, 2014
Publication date	Jun 16, 2016
Grant date	—

Abstract

A structure of an engine system may include a cylinder head on a top of an engine to form combustion chambers together with a plurality of engine cylinders, an intake manifold having a plurality of runners connected to a plurality of intake ports formed in the cylinder head so as to be in fluid communication with the plurality of engine cylinders through the plurality of intake ports and the plurality of runners, and a water cooling intercooler having an outlet connected to an inlet to the intake manifold for cooling at least one of Exhaust Gas Recirculation (EGR) gas and new air with cooling water.

First claim

What is claimed is:

1 . A structure of an engine system, comprising:
a cylinder head on a top of an engine so as to form combustion chambers together with a plurality of engine cylinders; an intake manifold having a plurality of runners connected to a plurality of intake ports formed in the cylinder head to be in fluid communication with the plurality of engine cylinders through the plurality of intake ports and the plurality of runners; and a water cooling intercooler having an outlet connected to an inlet of the intake manifold for cooling at least one of Exhaust Gas Recirculation (EGR) gas and new air with cooling water.

2 . The structure of claim 1 , further comprising:
a high pressure EGR passage formed in the intake manifold for supplying high pressure EGR gas to an inlet of the plurality of runners.

3 . The structure of claim 1 , wherein at least one of the high pressure EGR gas, low pressure EGR gas, and the new air is introduced through the inlet to the plurality of runners, and therefrom to the plurality of engine cylinders, having passed through the plurality of runners.

4 . The structure of claim 1 , further comprising:
a flange connected between the intake manifold and the cylinder head.

5 . The structure of claim 1 , wherein the water cooling intercooler is arranged on an upper side of the intake manifold in a vehicle height direction.

6 . The structure of claim 5 , wherein the plurality of runners are formed parallel to a plane in a vehicle width direction and the vehicle length direction, or in an acute angle from the plane.

7 . The structure of claim 5 , wherein the water cooling intercooler includes:
an inlet tank for introducing at least one of the low EGR gas and the new air; an outlet tank for discharging at least one of the low EGR gas and the new air to the intake manifold; and a core arranged between the inlet tank and the outlet tank for cooling at least one of the low EGR gas and the new air, wherein an outlet of the outlet tank is configured to be connected to the inlet of the intake manifold.

8 . The structure of claim 7 , further comprising, at an outlet side of the outlet tank, an empty space of a volume formed for moderating intake gas interference.

9 . The structure of claim 7 , wherein the inlet tank includes an air control valve mounted thereto for controlling a flow rate of at least one of the low pressure EGR gas and the new air being introduced to the water cooling type of intercooler.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Choi Won Rok

Classifications

• F02M26/32 Primary

  Liquid-cooled heat exchangers · CPC title

• F02M26/19

  Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system · CPC title

• F02M26/09

  Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine · CPC title

• F02M26/05

  High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor · CPC title

• F02B29/0475

  the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location · CPC title