CN109219691A - Engine apparatus - Google Patents

Engine apparatus Download PDF

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Publication number
CN109219691A
CN109219691A CN201780033534.6A CN201780033534A CN109219691A CN 109219691 A CN109219691 A CN 109219691A CN 201780033534 A CN201780033534 A CN 201780033534A CN 109219691 A CN109219691 A CN 109219691A
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CN
China
Prior art keywords
cooler
mentioned
gas
engine
blow
Prior art date
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Granted
Application number
CN201780033534.6A
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Chinese (zh)
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CN109219691B (en
Inventor
石桥孝夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isuzu Motors Ltd
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Isuzu Motors Ltd
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Publication of CN109219691A publication Critical patent/CN109219691A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

It include: blow-by gas piping (32), (33), the blow-by gas circulation for generating engine (10);EGR gas is piped (21), and the exhaust system (18) and gas handling system (17) of connection engine (10) simultaneously make EGR gas circulate;And the 1st cooler (22), it is inserted into EGR gas piping (21), and be arranged on the car body rear side of engine (10), cooling EGR gas.Blow-by gas is piped (32), at least part and the 1st cooler (22) of (33) adjacently configure.

Description

Engine apparatus
Technical field
This disclosure relates to engine apparatus, in particular to by the blow-by gas that engine generates arrange to atmosphere or be back into PCV (Positive Crankcase Ventilation: positive crankcase ventilation (PCV)) device of gas system.
Background technique
Back and forth, the blow-by gas escaped in crankcase from the gap of cylinder and piston is arranged to atmosphere or is returned The PCV device for flowing to gas handling system has been practical.
Under the low temperature environments such as cold district, after blow-by gas piping is cooled down by outside air, institute in blow-by gas The moisture contained freezes and becomes ice cube, collides turbocharger etc., so that components etc. be made to damage in the case where having.In addition, if Cause blow-by gas with blockage because freezing, then possible crankcase pressure rises and the failures such as lubricating oil leakage can occur, It is necessary to effectively inhibit freezing for blow-by gas.
For example, Patent Document 1 discloses by making engine cooling water in the insulating tube of covering blow-by gas piping Circulation is to carry out heat exchange, to realize the technology for preventing blow-by gas from freezing.
[existing technical literature]
[patent document]
Patent document 1: Japanese Unexamined Patent Publication 07-166835 bulletin
Summary of the invention
[subject to be solved by the invention]
In addition, traveling wind can pour into enging cabin from front with vehicle driving.Therefore, before engine and side It is exposed in traveling wind and is easy temperature decline, if in the piping of such place configuration blow-by gas or lubricant separator, Only freezing for blow-by gas may be prevented by carrying out heat exchange with engine cooling water with being unable to fully.
The purpose of the technology of the disclosure is to effectively inhibit at a temperature of blow-by gas caused by due to travelling wind effect Drop.
[for solving the technological means of technical task]
The technology of the disclosure is characterised by comprising: blow-by gas piping, the blow-by gas stream for generating engine It is logical;EGR gas piping connects the exhaust system of above-mentioned engine and gas handling system and EGR gas is made to circulate;And the 1 cooler is inserted into above-mentioned EGR gas piping, and is arranged on the car body rear side of above-mentioned engine, cooling At least part of EGR gas, above-mentioned blow-by gas piping is adjacently configured with above-mentioned 1st cooler.
In addition it is also possible to which being further comprises being inserted into above-mentioned blow-by gas piping to divide above and from blow-by gas It disembarks the lubricant separator of oil, which adjacently configures with above-mentioned 1st cooler.
It further comprise the 2nd cooler alternatively, it is also possible to be, the 2nd cooler is inserted into be leaned on than above-mentioned 1st cooler In the above-mentioned EGR gas piping in downstream side, and matched relatively at a predetermined interval in the top of above-mentioned 1st cooler It sets, cooling EGR gas, said engine oil separator configures between above-mentioned 1st cooler and above-mentioned 2nd cooler.
In addition it is also possible to be, said engine oil separator is fixed on above-mentioned 1st cooler or above-mentioned via bracket On at least one of 2 coolers.
In addition it is also possible to be, the one end of above-mentioned bracket is fixed on above-mentioned 1st cooler or above-mentioned 2nd cooler At least one of shell on.
In addition it is also possible to be, above-mentioned 1st cooler and above-mentioned 2nd cooler are extended on along width of the carbody direction State the car body rear side of engine.
[invention effect]
According to the technology of the disclosure, at a temperature of capable of effectively inhibiting blow-by gas caused by due to travelling wind effect Drop.
Detailed description of the invention
Fig. 1 is the schematic diagram for indicating the engine apparatus of an embodiment of the disclosure from car body rear.
Fig. 2 is the schematical perspective view for indicating the engine apparatus of an embodiment of the disclosure.
Fig. 3 is the schematical perspective view for indicating the engine apparatus of other embodiment.
Fig. 4 is the schematic diagram for indicating the engine apparatus of other embodiment from car body rear.
Specific embodiment
In the following, with reference to the accompanying drawings, the engine apparatus being related to an embodiment of the disclosure is illustrated.To identical component Identical appended drawing reference is marked, their title and function is also identical.Therefore, duplicate detailed description is not done to it.
Fig. 1 is the schematic diagram of the diesel motor (hreinafter referred to as engine) 10 of the present embodiment from car body rear.? The top of cylinder block 11 is provided with cylinder head 12, and the top of cylinder head 12 is provided with valve mechanism cover 13.It is set in cylinder block 11 It is equipped with the crankshaft case portion 11A for accommodating crankshaft 14, the rear end of crankshaft 14 is provided with flywheel 15.In addition, under cylinder block 11 Portion is provided with the food tray 16 of storage machine oil.
The side of cylinder head 12 is provided with inlet manifold 17A and exhaust manifold 18A.It is connected on inlet manifold 17A Fresh air is imported into the indoor air inlet pipe 17 of burning, is connected on exhaust manifold 18A and exports exhaust out of combustion chamber Exhaust pipe 18.
Exhaust gas recirculatioon (EGR) device 20 includes: EGR piping 21, and exhaust pipe 18 and air inlet pipe 17 are connected and make EGR Gas circulation;Prime cooler for recycled exhaust gas 22 is inserted into EGR piping 21 and cools down EGR gas;Rear class cooler for recycled exhaust gas 23, It is inserted into the position than 22 downstream of prime cooler for recycled exhaust gas of EGR piping 21 and cooling EGR gas;And EGR valve 24, EGR gas flow can be adjusted.
PCV device 30 includes: lubricant separator 31, and machine oil is separated from blow-by gas;The piping of 1st blow-by gas 32, connect the blow-by gas outlet portion of cylinder head 13 and the blowby gas inlet portion of lubricant separator 31;2nd, which alters cylinder, mixes Gas piping 33 is closed, one end side is connected with the blow-by gas outlet portion of lubricant separator 31 and arranges blow-by gas to atmosphere (or being back to air inlet pipe 17);And reflux piping 34, connect the machine oil outlet portion and cylinder block 11 of lubricant separator 31 Engine oil inlet portion and will by lubricant separator 31 separate after machine oil be back to food tray 16.
In the following, with reference to the accompanying drawings 2, the configuration relation of ERG device 20 and PCV device 30 to present embodiment carries out specifically It is bright.
As shown in Fig. 2, prime cooler for recycled exhaust gas 22 is by with the cylinder axis for the shell 22A for accommodating the square tube shape of pipe (not shown) The car body rear side that the mode that direction becomes substantially width of the carbody direction configured in engine 10 is (for example, cylinder block 11 or gas The back side of cylinder cap 12).Rear class cooler for recycled exhaust gas 23 by with the cylinder axis direction for the shell 23A for accommodating the square tube shape of pipe (not shown) at Being located at than preceding in engine 10 is configured at a predetermined interval for the substantially mode in width of the carbody direction and prime cooler for recycled exhaust gas 22 The car body rear side (for example, back side of cylinder head 12 or valve mechanism cover 13) of grade cooler for recycled exhaust gas 22 position against the top.
That is, prime cooler for recycled exhaust gas 22 and rear class cooler for recycled exhaust gas 23 are by with the upper table of the shell 22A of prime cooler for recycled exhaust gas 22 The lower surface of the shell 23A of face and rear class cooler for recycled exhaust gas 23 spaced apart from each other opposite mode along width of the carbody direction simultaneously Row arrangement is in the car body rear side of engine 10.
Lubricant separator 31 is adjacent with each shell 22A, 23A between prime cooler for recycled exhaust gas 22 and rear class cooler for recycled exhaust gas 23 Connect configuration.In more detail, it is provided with the conductivities of heat material bending such as metal material on the shell 22A of prime cooler for recycled exhaust gas The 1st bracket 40 formed at generally L-shaped.Lubricant separator 31 is fixed on the 1st bracket 40 by bolt (not shown) etc. On.
That is, being drawn by configuring lubricant separator 31 what is surrounded by prime cooler for recycled exhaust gas 22 and rear class cooler for recycled exhaust gas 23 10 car body rear lateral portion is held up, is directly exposed to the open air so as to be effectively prevented lubricant separator 31 in the traveling poured into enging cabin In wind.In addition, by the way that the 1st bracket 40 to be arranged on the shell 22A that will become the prime cooler for recycled exhaust gas 22 of high temperature, and will Lubricant separator 31 is fixed on the 1st bracket 40, so as to using from shell 22A via the heat that the 1st bracket 40 conducts come Realize the heat preservation of lubricant separator 31.
1st blow-by gas is piped the connection end side quilt with lubricant separator 31 of the 32 and the 2nd blow-by gas piping 33 Configuration is between prime cooler for recycled exhaust gas 22 and rear class cooler for recycled exhaust gas 23.In addition, cylinder is altered in the 1st blow-by gas piping the 32 and the 2nd Gaseous mixture piping 33 is fixed on the EGR of connection prime cooler for recycled exhaust gas 22 and rear class cooler for recycled exhaust gas 23 via the 2nd bracket 41 In piping 21.
That is, being configured by a part that the 1st blow-by gas is piped the 32 and the 2nd blow-by gas piping 33 by prime The car body rear lateral portion for the engine 10 that cooler for recycled exhaust gas 22 and rear class cooler for recycled exhaust gas 23 surround, matches so as to be effectively prevented these Pipe 32,33 directly exposes to the open air in pouring into the traveling wind in enging cabin.In addition, by the way that the setting of the 2nd bracket 41 will become height In the EGR piping 21 of temperature, and the 1st blow-by gas is piped the 32 and the 2nd blow-by gas piping 33 and is fixed on the 2nd bracket 41 On, so as to utilize the heat preservation for realizing these pipings 32,33 via the heat that the 2nd bracket 41 conducts from EGR piping 21.
Such as above-mentioned detailed description, according to the present embodiment, by configuring lubricant separator 31 by prime EGR The car body rear lateral portion for the engine 10 that cooler 22 and rear class cooler for recycled exhaust gas 23 surround, starts so as to be effectively prevented to pour into Traveling wind in cabin is directly blown on lubricant separator 31, is able to suppress the temperature decline of lubricant separator 31.
In addition, being configured by a part that the 1st blow-by gas is piped the 32 and the 2nd blow-by gas piping 33 preceding The car body rear lateral portion for the engine 10 that grade cooler for recycled exhaust gas 22 and rear class cooler for recycled exhaust gas 23 surround, so as to be effectively prevented at this The blow-by gas flowed in a little pipings 32,33 is influenced by traveling wind and is cooled.
In addition, by lubricant separator 31 is fixed on the shell 22A for being arranged on prime cooler for recycled exhaust gas 22 the 1st On bracket 40, so that heat is conducted to lubricant separator 31 from shell 22A via the 1st bracket 40, it can effectively realize The heat preservation of lubricant separator 31.
In addition, being arranged on EGR by the way that the 1st blow-by gas the 32 and the 2nd blow-by gas of piping piping 33 to be fixed on On the 2nd bracket 41 in piping 21, thus heat by from EGR piping 21 be conducted to via the 2nd bracket 41 these pipings 32, 33, the heat preservation of these pipings 32,33 can be effectively realized.
It should be noted that the present invention is not limited in above embodiment, in the range for not departing from purport of the invention It is interior, it can be appropriately deformed and implement.
For example, as shown in Fig. 3, before lubricant separator 31 can also being fixed on via the 3rd bracket 42 of substantially U-shaped On the shell 22A of grade cooler for recycled exhaust gas 22 and shell 23A the two of rear class cooler for recycled exhaust gas 23.In this case, heat quilt It is transmitted to lubricant separator 31 from each shell 22A, 23A via the 3rd bracket 42, can more effectively realize lubricant separator 31 Heat preservation.
In addition, the cooler for recycled exhaust gas of EGR device 20 is not limited to multistage, it also may include level-one as shown in Fig. 4 Cooler for recycled exhaust gas 25.In this case, by the adjacent configuration of lubricant separator 31 below cooler for recycled exhaust gas 25.
In addition, engine 10 is not limited to diesel motor, it also can be generally applicable on other engines such as gasoline engine.
The application is made its content based on Japanese patent application (2016-111741) filed on June 3rd, 2016 So far for reference.
[Industrial Availability]
According to the technology of the disclosure, in the temperature that can effectively inhibit blow-by gas caused by due to travelling wind effect It is useful for declining this point.
[description of symbols]
10 engines
11 cylinder block
12 cylinder head
13 cylinder head casings
14 crankshafts
15 flywheels
16 food trays
17 air inlet pipe
18 exhaust pipes
20 EGR devices
21 EGR piping
22 prime cooler for recycled exhaust gas
23 rear class cooler for recycled exhaust gas
30 PCV devices
31 lubricant separators
The piping of 32 the 1st blow-by gas
The piping of 33 the 2nd blow-by gas
40 the 1st brackets
41 the 2nd brackets

Claims (6)

1. a kind of engine apparatus, comprising:
Blow-by gas piping, the blow-by gas circulation for generating engine,
EGR gas piping connects the exhaust system of above-mentioned engine and gas handling system and EGR gas is made to circulate, and
1st cooler is inserted into above-mentioned EGR gas piping, and is arranged on the car body rear side of above-mentioned engine Portion, cooling EGR gas;
At least part of above-mentioned blow-by gas piping is adjacently arranged with above-mentioned 1st cooler.
2. engine apparatus as described in claim 1, wherein
It further comprise the lubricant separator for being inserted into above-mentioned blow-by gas piping and separating machine oil above and from blow-by gas, The lubricant separator is adjacently configured with above-mentioned 1st cooler.
3. engine apparatus as claimed in claim 2, wherein
It further comprise the 2nd cooler, the 2nd cooler is inserted into the above-mentioned recycling than above-mentioned 1st cooler downstream In exhaust gas piping, and EGR gas is oppositely disposed and cooled down at a predetermined interval in the top of above-mentioned 1st cooler, Said engine oil separator configures between above-mentioned 1st cooler and above-mentioned 2nd cooler.
4. engine apparatus as claimed in claim 3, wherein
Said engine oil separator is fixed at least one of above-mentioned 1st cooler or above-mentioned 2nd cooler via bracket On.
5. engine apparatus as claimed in claim 4, wherein
The one end of above-mentioned bracket is fixed on the shell of at least one of above-mentioned 1st cooler or above-mentioned 2nd cooler On.
6. the engine apparatus as described in any one of claim 3 to 5, wherein
Above-mentioned 1st cooler and the 2nd cooler are extended on the car body rear side of above-mentioned engine along width of the carbody direction.
CN201780033534.6A 2016-06-03 2017-06-02 Engine device Active CN109219691B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016-111741 2016-06-03
JP2016111741A JP6707997B2 (en) 2016-06-03 2016-06-03 Engine equipment
PCT/JP2017/020611 WO2017209278A1 (en) 2016-06-03 2017-06-02 Engine device

Publications (2)

Publication Number Publication Date
CN109219691A true CN109219691A (en) 2019-01-15
CN109219691B CN109219691B (en) 2021-01-29

Family

ID=60478643

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201780033534.6A Active CN109219691B (en) 2016-06-03 2017-06-02 Engine device

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Country Link
JP (1) JP6707997B2 (en)
CN (1) CN109219691B (en)
MY (1) MY191644A (en)
PH (1) PH12018502517A1 (en)
WO (1) WO2017209278A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768493A (en) * 1984-04-27 1988-09-06 Honda Giken Kogyo Kabushiki Kaisha Blow-by gas heating system for internal combustion engines
JP2005083301A (en) * 2003-09-10 2005-03-31 Suzuki Motor Corp Anti-freezing structure of breather pipe
CN101240726A (en) * 2007-02-09 2008-08-13 本田技研工业株式会社 Aerating device for internal combustion engine
CN105507984A (en) * 2014-10-10 2016-04-20 铃木株式会社 Gas carry-over exchanging device for internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003214131A (en) * 2002-01-25 2003-07-30 Toyota Motor Corp Pcv device
JP5407833B2 (en) * 2009-12-17 2014-02-05 スズキ株式会社 Blowby gas recirculation system
JP5322911B2 (en) * 2009-12-24 2013-10-23 日野自動車株式会社 Engine exhaust gas purification device
JP6079349B2 (en) * 2013-03-22 2017-02-15 いすゞ自動車株式会社 PCV system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768493A (en) * 1984-04-27 1988-09-06 Honda Giken Kogyo Kabushiki Kaisha Blow-by gas heating system for internal combustion engines
JP2005083301A (en) * 2003-09-10 2005-03-31 Suzuki Motor Corp Anti-freezing structure of breather pipe
CN101240726A (en) * 2007-02-09 2008-08-13 本田技研工业株式会社 Aerating device for internal combustion engine
CN105507984A (en) * 2014-10-10 2016-04-20 铃木株式会社 Gas carry-over exchanging device for internal combustion engine

Also Published As

Publication number Publication date
JP2017218906A (en) 2017-12-14
PH12018502517A1 (en) 2019-09-30
CN109219691B (en) 2021-01-29
MY191644A (en) 2022-07-05
JP6707997B2 (en) 2020-06-10
WO2017209278A1 (en) 2017-12-07

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