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1. CN104755740 - Improved exhaust gas recirculation apparatus and method for forming same

Office China
Application Number 201380054598.6
Application Date 04.09.2013
Publication Number 104755740
Publication Date 01.07.2015
Grant Number 104755740
Grant Date 13.02.2018
Publication Kind B
IPC
F28D 1/053
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL
1Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
02with the heat-exchange conduits immersed in the body of fluid
04with tubular conduits
053the conduits being straight
F02M 26/29
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
26Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation systems
13Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
22with coolers in the recirculation passage
29Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
F02B 47/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
47Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
04the substances being other than water or steam only
08the substances including exhaust gas
F01N 3/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
04by means of liquids
CPC
F02M 26/32
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
26Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
13Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
22with coolers in the recirculation passage
29Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
32Liquid-cooled heat exchangers
F28D 7/1684
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
7Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
16the conduits being arranged in parallel spaced relation
1684the conduits having a non-circular cross-section
F28D 21/0003
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
21Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
0001Recuperative heat exchangers
0003the heat being recuperated from exhaust gases
F28F 1/025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
02Tubular elements of cross-section which is non-circular
025with variable shape, e.g. with modified tube ends, with different geometrical features
F28F 1/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
08Tubular elements crimped or corrugated in longitudinal section
F28F 2265/26
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
2265Safety or protection arrangements; Arrangements for preventing malfunction
26for allowing differential expansion between elements
Applicants 高级知识产权有限公司
Inventors R·柯林斯
M·墨菲
T·M·沃尔什
T·卡尼
Agents 中国国际贸易促进委员会专利商标事务所 11038
Priority Data 13605896 06.09.2012 US
Title
(EN) Improved exhaust gas recirculation apparatus and method for forming same
(ZH) 改进的废气再循环装置和形成该装置的方法
Abstract
(EN)
An exhaust gas recirculation cooler for internal combustion engines and a method of forming same are disclosed. One or more cooler tubes incorporate a flexible section comprises one or more integrally formed convolutions and is provided with a tube and fin architecture. The exhaust gas recirculation cooler provides thermal compensation, on a per-tube basis, with the flexible sections of the one or more cooler tubes individually displacing upon the thermal expansion of any of the respective tubes.

(ZH)
一种用于内燃式发动机的废气再循环冷却器和形成该冷却器的方法。一个或者更多个冷却器管结合有挠性部段,包括一个或者更多个一体地形成的褶曲部,并且管和翅片构造。废气再循环冷却器在每个管的基础上提供热补偿,并且一个或者更多个冷却器管的挠性部段在任一相应管热膨胀期间单独地移动。