JP6795636B2 - 内燃機関の異常判定装置 - Google Patents
内燃機関の異常判定装置 Download PDFInfo
- Publication number
- JP6795636B2 JP6795636B2 JP2019021329A JP2019021329A JP6795636B2 JP 6795636 B2 JP6795636 B2 JP 6795636B2 JP 2019021329 A JP2019021329 A JP 2019021329A JP 2019021329 A JP2019021329 A JP 2019021329A JP 6795636 B2 JP6795636 B2 JP 6795636B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- breather line
- closed space
- combustion engine
- internal combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005856 abnormality Effects 0.000 title claims description 52
- 238000002485 combustion reaction Methods 0.000 title claims description 38
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 230000006837 decompression Effects 0.000 description 6
- 230000010349 pulsation Effects 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
- F01M13/023—Control valves in suction conduit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/028—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of positive pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10157—Supercharged engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
- F02M35/1038—Sensors for intake systems for temperature or pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0077—Engine parameters used for crankcase breather systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0077—Engine parameters used for crankcase breather systems
- F01M2013/0083—Crankcase pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M2013/027—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with a turbo charger or compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M2250/00—Measuring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/08—Engine blow-by from crankcase chamber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
13 吸気口
14 吸気マニホールド
15 エアクリーナ
17 過給機
18 スロットルバルブ
19 クランクケース
20 ブリーザライン
21 PCVライン
23 第1接続部
24 第2接続部
25 第1開閉弁(開閉弁)
26 第2開閉弁(開閉弁)
27 密閉空間
28 減圧ポンプ(ポンプ)
29 圧力センサ
30 異常判定手段
Claims (3)
- 吸気口(13)から吸気マニホールド(14)に至る吸気通路(12)の上流側から下流側に向けてエアクリーナ(15)、過給機(17)およびスロットルバルブ(18)を順番に配置し、前記スロットルバルブ(18)の下流側の前記吸気通路(12)をPCVライン(21)を介してクランクケース(19)に接続するとともに、前記エアクリーナ(15)および前記過給機(17)間の前記吸気通路(12)をブリーザライン(20)を介して前記クランクケース(19)に接続した内燃機関の異常判定装置であって、
前記ブリーザライン(20)の内部空間を密閉して密閉空間(27)を構成する開閉弁(25,26)と、前記密閉空間(27)に直接接続されて該密閉空間(27)を減圧あるいは加圧するポンプ(28)と、前記密閉空間(27)に直接接続されて該密閉空間(27)の圧力を検出する圧力センサ(29)と、前記ブリーザライン(20)の異常を判定する異常判定手段(30)とを備え、前記異常判定手段(30)は、前記ポンプ(28)で前記密閉空間(27)を減圧あるいは加圧した際の前記密閉空間(27)の圧力変化に基づいて前記ブリーザライン(20)の異常を判定することを特徴とする内燃機関の異常判定装置。 - 前記開閉弁(25,26)は、前記ブリーザライン(20)の前記吸気通路(12)に対する第1接続部(23)を閉塞する第1開閉弁(25)と、前記ブリーザライン(20)の前記クランクケース(19)に対する第2接続部(24)を閉塞する第2開閉弁(26)とからなることを特徴とする、請求項1に記載の内燃機関の異常判定装置。
- 前記開閉弁(25,26)は、前記ブリーザライン(20)の前記吸気通路(12)に対する第1接続部(23)を閉塞する第1開閉弁(25)と、前記PCVライン(21)の前記クランクケース(19)に対する第2接続部(24)を閉塞する第2開閉弁(26)とからなることを特徴とする、請求項1に記載の内燃機関の異常判定装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019021329A JP6795636B2 (ja) | 2019-02-08 | 2019-02-08 | 内燃機関の異常判定装置 |
US16/742,089 US10934963B2 (en) | 2019-02-08 | 2020-01-14 | Abnormality assessment device of internal combustion engine |
CN202010073937.7A CN111550312B (zh) | 2019-02-08 | 2020-01-22 | 内燃机的异常判定装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019021329A JP6795636B2 (ja) | 2019-02-08 | 2019-02-08 | 内燃機関の異常判定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020128720A JP2020128720A (ja) | 2020-08-27 |
JP6795636B2 true JP6795636B2 (ja) | 2020-12-02 |
Family
ID=71944778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019021329A Active JP6795636B2 (ja) | 2019-02-08 | 2019-02-08 | 内燃機関の異常判定装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10934963B2 (ja) |
JP (1) | JP6795636B2 (ja) |
CN (1) | CN111550312B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11306631B2 (en) * | 2020-03-11 | 2022-04-19 | Ford Global Technologies, Llc | Systems and methods for crankcase system diagnostics |
JP2022104382A (ja) * | 2020-12-28 | 2022-07-08 | 日本電産トーソク株式会社 | ブローバイガスリーク診断装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3321943B2 (ja) | 1993-12-17 | 2002-09-09 | 株式会社デンソー | 燃料蒸散防止機構用異常検出装置 |
JP3565611B2 (ja) * | 1995-03-29 | 2004-09-15 | トヨタ自動車株式会社 | エバポパージシステムの故障診断装置 |
JP3449249B2 (ja) | 1998-10-05 | 2003-09-22 | 株式会社デンソー | エバポガスパージシステムの異常診断装置 |
DE10320054A1 (de) | 2003-05-06 | 2004-11-25 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine |
JP4466746B2 (ja) * | 2008-02-21 | 2010-05-26 | トヨタ自動車株式会社 | ブローバイガス還元装置の異常診断装置 |
DE102008002721A1 (de) * | 2008-06-27 | 2009-12-31 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Diagnose einer Kurbelgehäuseentlüftung bei Verbrennungsmotoren |
US20100083930A1 (en) * | 2008-10-07 | 2010-04-08 | International Engine Intellectual Property Company , Llc | Lower Valve Cover and Intake Manifold Assembly |
JP4998542B2 (ja) | 2009-12-21 | 2012-08-15 | トヨタ自動車株式会社 | 車両の異常診断装置 |
US9068486B2 (en) | 2012-09-14 | 2015-06-30 | Ford Global Technologies, Llc | Crankcase integrity breach detection |
JP2014084052A (ja) * | 2012-10-26 | 2014-05-12 | Aisan Ind Co Ltd | 負圧供給ユニット |
JP6399427B2 (ja) | 2013-12-25 | 2018-10-03 | ボルボトラックコーポレーション | ブローバイガス還流装置 |
JP6384164B2 (ja) * | 2014-07-15 | 2018-09-05 | 浜名湖電装株式会社 | 燃料蒸発ガスパージシステムの異常検出装置 |
JP6319036B2 (ja) | 2014-10-17 | 2018-05-09 | 浜名湖電装株式会社 | 燃料蒸発ガスパージシステム |
US9689350B2 (en) * | 2015-05-27 | 2017-06-27 | Ford Global Technologies, Llc | System and methods for mechanical vacuum pump exhaust |
KR101725641B1 (ko) * | 2015-07-10 | 2017-04-11 | 현대오트론 주식회사 | 캐니스터 퍼지 밸브 고착 진단 방법 및 이를 위한 자동차 시스템 |
DE102015213982A1 (de) * | 2015-07-24 | 2017-01-26 | Bayerische Motoren Werke Aktiengesellschaft | Brennkraftmaschine und Verfahren zur Erkennung einer Leckage von einem Kurbelgehäuse- und/oder einem Tank-Entlüftungssystem |
JP2017078378A (ja) | 2015-10-21 | 2017-04-27 | 株式会社デンソー | 診断装置 |
JP6673790B2 (ja) * | 2016-09-14 | 2020-03-25 | 愛三工業株式会社 | エンジンシステム |
-
2019
- 2019-02-08 JP JP2019021329A patent/JP6795636B2/ja active Active
-
2020
- 2020-01-14 US US16/742,089 patent/US10934963B2/en active Active
- 2020-01-22 CN CN202010073937.7A patent/CN111550312B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN111550312A (zh) | 2020-08-18 |
US10934963B2 (en) | 2021-03-02 |
US20200256276A1 (en) | 2020-08-13 |
JP2020128720A (ja) | 2020-08-27 |
CN111550312B (zh) | 2022-02-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10907591B2 (en) | Internal combustion engine and method for detecting a leak from a crankcase and/or a tank ventilation system | |
US10808583B2 (en) | Crankcase breech detection for boosted engines | |
JP6270890B2 (ja) | リーク検出装置 | |
JP6409086B1 (ja) | リーク検出装置 | |
US10551273B2 (en) | Method for detecting a leak in a crankcase breather | |
US9790885B2 (en) | Crankcase integrity breach detection | |
US9714590B2 (en) | Crankcase integrity breach detection | |
US9260990B2 (en) | Crankcase integrity breach detection | |
US9416694B2 (en) | Crankcase integrity breach detection | |
JP6087053B2 (ja) | ブローバイガス還元装置及びブローバイガス還元装置の異常診断方法 | |
WO2017110242A1 (ja) | 内燃機関の異常検出装置 | |
CN103376209A (zh) | 测定曲轴箱破裂和油面高度的方法 | |
JP6795636B2 (ja) | 内燃機関の異常判定装置 | |
JP6743210B1 (ja) | 内燃機関の異常判定装置 | |
JP6828068B2 (ja) | 内燃機関の異常判定装置 | |
JP6818062B2 (ja) | 内燃機関の異常判定装置 | |
JP6810176B2 (ja) | 内燃機関の異常判定装置 | |
JP2021038668A (ja) | エアクリーナの目詰まり検出装置 | |
JP2017172395A (ja) | リーク検出装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190927 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200805 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200928 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20201021 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20201112 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6795636 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |