JP2013130166A - エンジン冷却液循環システム - Google Patents
エンジン冷却液循環システム Download PDFInfo
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- JP2013130166A JP2013130166A JP2011281643A JP2011281643A JP2013130166A JP 2013130166 A JP2013130166 A JP 2013130166A JP 2011281643 A JP2011281643 A JP 2011281643A JP 2011281643 A JP2011281643 A JP 2011281643A JP 2013130166 A JP2013130166 A JP 2013130166A
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- coolant
- flow rate
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- 239000002826 coolant Substances 0.000 title claims abstract description 88
- 238000001816 cooling Methods 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 239000010687 lubricating oil Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/027—Cooling cylinders and cylinder heads in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/04—Lubricant cooler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/08—Cabin heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/16—Outlet manifold
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
【解決手段】エンジンのシリンダ部21へ冷却液を流通させてシリンダ部21を冷却させるシリンダ経路21aと、シリンダ経路21aと並列に接続され、ヘッド部22へ冷却液を流通させて冷却させるヘッド経路22aと、を備え、シリンダ部21から流出した冷却液をラジエータ40および第1熱交換器(オイルウォーマ57)に分配するとともに、ヘッド部22から流出した冷却液をラジエータ40および第2熱交換器(EGRクーラ51およびヒータコア56)に分配するよう構成する。そして、シリンダ部21を流通する冷却液の流量と、ヘッド部22を流通する冷却液の流量を、各々独立して制御可能に構成する。
【選択図】 図1
Description
図1は、本実施形態にかかるエンジン冷却液循環システムを示す図である。循環ポンプ10から吐出される冷却液は、エンジン20に設けられたウォータジャケットのうち、エンジン20のシリンダ部21およびヘッド部22を流通する。シリンダ部21へ冷却液を流通させるウォータジャケットはシリンダ経路21aに相当し、ヘッド部22へ冷却液を流通させるウォータジャケットはヘッド経路22aに相当する。これらのシリンダ経路21aおよびヘッド経路22aは並列に接続されている。
上記第1実施形態では、サーモスタット41の設定温度を、シリンダ温度Tsの最適値(シリンダ部21の目標温度)に設定している。これに対し、本実施形態では、サーモスタット41の設定温度を、EGRガスを冷却していった場合にEGRガス中の水分が凝縮し始める時の温度よりも高い温度、かつ、エンジン暖機終了後におけるシリンダ部21の目標温度よりも低い温度に設定している。
本発明は上記実施形態の記載内容に限定されず、以下のように変更して実施してもよい。また、各実施形態の特徴的構成をそれぞれ任意に組み合わせるようにしてもよい。
Claims (3)
- エンジンのシリンダ部へ冷却液を流通させて前記シリンダ部を冷却させるシリンダ経路と、
前記シリンダ経路と並列に接続され、前記エンジンのヘッド部へ冷却液を流通させて前記ヘッド部を冷却させるヘッド経路と、
を備え、
前記シリンダ部から流出した冷却液をラジエータおよび第1熱交換器に分配するとともに、前記ヘッド部から流出した冷却液を前記ラジエータおよび第2熱交換器に分配するよう構成された、エンジン冷却液循環システムにおいて、
前記シリンダ部を流通する冷却液の流量と、前記ヘッド部を流通する冷却液の流量を、各々独立して制御可能に構成したことを特徴とするエンジン冷却液循環システム。 - 前記第1熱交換器には、熱交換に要する冷却液の流量が所定値よりも少ない小流量熱交換器を選定し、
前記第2熱交換器には、熱交換に要する冷却液の流量が前記所定値よりも多い大流量熱交換器を選定したことを特徴とする請求項1に記載のエンジン冷却液循環システム。 - 前記エンジンには、排気の一部をEGRガスとして吸気側へ還流させるEGRシステムが備えられており、
前記第2熱交換器のうちEGRガスを冷却するEGRクーラと、
冷却液が設定温度以下である場合には、冷却液がラジエータをバイパスして流通するように制御するサーモスタットと、
を備え、
前記サーモスタットの前記設定温度を、EGRガス中の水分が凝縮し始める時の温度よりも高い温度、かつ、前記エンジンの暖機が終了した後における前記シリンダ部の目標温度よりも低い温度に設定したことを特徴とする請求項1または2に記載のエンジン冷却液循環システム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011281643A JP5582133B2 (ja) | 2011-12-22 | 2011-12-22 | エンジン冷却液循環システム |
US13/721,961 US9470138B2 (en) | 2011-12-22 | 2012-12-20 | Coolant circulation system for engine |
CN201210562341.9A CN103174503B (zh) | 2011-12-22 | 2012-12-21 | 用于引擎的冷却剂循环*** |
Applications Claiming Priority (1)
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JP2011281643A JP5582133B2 (ja) | 2011-12-22 | 2011-12-22 | エンジン冷却液循環システム |
Publications (2)
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JP2013130166A true JP2013130166A (ja) | 2013-07-04 |
JP5582133B2 JP5582133B2 (ja) | 2014-09-03 |
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JP2011281643A Active JP5582133B2 (ja) | 2011-12-22 | 2011-12-22 | エンジン冷却液循環システム |
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US (1) | US9470138B2 (ja) |
JP (1) | JP5582133B2 (ja) |
CN (1) | CN103174503B (ja) |
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KR101601236B1 (ko) | 2014-11-26 | 2016-03-21 | 현대자동차주식회사 | 냉각수 제어밸브를 갖는 엔진시스템 |
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US9470138B2 (en) | 2016-10-18 |
CN103174503B (zh) | 2015-03-25 |
CN103174503A (zh) | 2013-06-26 |
JP5582133B2 (ja) | 2014-09-03 |
US20130160723A1 (en) | 2013-06-27 |
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