CN115324762B - Exhaust passage exhaust structure and engine - Google Patents

Exhaust passage exhaust structure and engine Download PDF

Info

Publication number
CN115324762B
CN115324762B CN202211261199.4A CN202211261199A CN115324762B CN 115324762 B CN115324762 B CN 115324762B CN 202211261199 A CN202211261199 A CN 202211261199A CN 115324762 B CN115324762 B CN 115324762B
Authority
CN
China
Prior art keywords
exhaust
passage
cylinder
branch air
exhaust branch
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
Application number
CN202211261199.4A
Other languages
Chinese (zh)
Other versions
CN115324762A (en
Inventor
王利雨
李卫
贺经纬
李斌
张建姣
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.)
Weichai Power Co Ltd
Original Assignee
Weichai Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weichai Power Co Ltd filed Critical Weichai Power Co Ltd
Priority to CN202211261199.4A priority Critical patent/CN115324762B/en
Publication of CN115324762A publication Critical patent/CN115324762A/en
Application granted granted Critical
Publication of CN115324762B publication Critical patent/CN115324762B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The invention provides an exhaust passage exhaust structure and an engine, wherein a cylinder cover of a cylinder is provided with a first cylinder and a second cylinder which are adjacently arranged, two first exhaust branch air passages of the first cylinder are converged to a first main exhaust passage, and two second exhaust branch air passages of the second cylinder are converged to a second main exhaust passage; the first auxiliary exhaust branch air passage extending from the first exhaust branch air passage and the second auxiliary exhaust branch air passage extending from the second exhaust branch air passage are arranged on one side of the first exhaust branch air passage adjacent to one side of the second exhaust branch air passage; the first auxiliary exhaust branch air passage and the second auxiliary exhaust branch air passage are converged to form an auxiliary exhaust passage. Through the mode that stretches out first vice exhaust branch air flue and the vice exhaust branch air flue of second respectively on the first exhaust branch air flue of two adjacent sides of cylinder and exhaust branch air flue, form the carminative structure of main exhaust passage and vice exhaust passage combination on the cylinder cap to can increase the flow area of exhaust passage, reduce the air current and block, improve the patency of exhausting.

Description

Exhaust passage exhaust structure and engine
Technical Field
The invention relates to the technical field of engines, in particular to an exhaust passage exhaust structure and an engine.
Background
With stricter laws and regulations and more importance of society on energy, people put higher demands on the reliability and performance of diesel engines. Where the level of engine exhaust efficiency has a significant impact on performance.
The cylinder head of the engine is responsible for discharging the exhaust gas in the cylinder. The good exhaust capacity can reduce the pumping loss, reduce the combustion temperature, improve the efficiency of the supercharger, improve the excess air coefficient, ensure the reliability of the engine and greatly improve the thermal efficiency of the engine.
In the existing cylinder head exhaust structure shown in fig. 1, cylinder head bolts are installed in cylinder head bolt mounting holes 2 ' to be connected with a cylinder body, exhaust passages 1 ' are arranged in parallel, and two exhaust passages 1 ' are independently separated air passages, which is the most ideal arrangement, but because the exhaust temperature of an engine is high, the cylinder head bolts clamped between the two exhaust passages are easy to lose efficacy at high temperature. In order to ensure effective cooling of the cylinder head, the structure of the two exhaust passages is arranged into the exhaust passage structure of the cylinder head as shown in fig. 2, two air inlets are combined into an exhaust port 3 'for exhausting, a cylinder head bolt mounting hole 4' is positioned at one side of the exhaust passage, a cylinder head bolt is only close to the exhaust passage at one side, the connection stability is improved, but the insufficient flow area of the exhaust flange surface can be caused, the air flow is blocked, and the exhaust is not smooth.
Disclosure of Invention
In view of the above, the present invention provides an exhaust structure of an exhaust passage, so as to ensure the exhaust smoothness of the exhaust passage; the invention also provides an engine.
In order to achieve the purpose, the invention provides the following technical scheme:
an exhaust passage exhaust structure is characterized in that a cylinder cover is provided with a first cylinder and a second cylinder which are adjacently arranged, two first exhaust branch air passages of the first cylinder are converged to a first main exhaust passage, and two second exhaust branch air passages of the second cylinder are converged to a second main exhaust passage;
a first auxiliary exhaust branch air passage extending from the first exhaust branch air passage and a second auxiliary exhaust branch air passage extending from the second exhaust branch air passage are arranged on one side of the first exhaust branch air passage adjacent to one side of the second exhaust branch air passage;
and the first auxiliary exhaust branch air passage and the second auxiliary exhaust branch air passage are converged to form an auxiliary exhaust passage.
Preferably, in the exhaust passage exhaust structure, the exhaust structures of the first cylinder and the second cylinder are arranged symmetrically.
Preferably, in the exhaust structure of the exhaust passage, the first auxiliary exhaust branch passage and the second auxiliary exhaust branch passage are both provided with a check valve, and the arrangement position of the check valve is close to the confluence position of the auxiliary exhaust passage.
Preferably, in the exhaust passage exhaust structure, the first main exhaust passage has a first exhaust outlet area S1, the auxiliary exhaust passage has a second exhaust outlet area S2, and the two first exhaust branch passages have the same exhaust inlet area S3; the first exhaust gas outlet area S1, the second exhaust gas outlet area S2, and the exhaust gas inlet area S3 satisfy: s1+ S2 > 2S3.
Preferably, in the exhaust structure of the exhaust passage, a plurality of flange bolt mounting holes are distributed on the cylinder head, the flange bolt mounting holes are distributed among the first main exhaust passage, the second main exhaust passage and the auxiliary exhaust passage, and the cylinder head is provided with cooling water channels distributed on two sides of the auxiliary exhaust passage.
Preferably, in the exhaust passage exhaust structure, the inlet of the first sub exhaust branch passage is located at the lower end of the connecting line of the centers of the heads of the two first exhaust branch passages.
Preferably, in the exhaust passage exhaust structure, adjacent sides of the first exhaust branch passage and the second exhaust branch passage are offset in a direction away from each other along an airflow direction, and converge to a main exhaust passage on a corresponding side.
Preferably, in the exhaust passage exhaust structure, two of the first exhaust branch passages and two of the second exhaust branch passages have a confluence angle in a confluence direction, and the confluence angle is an acute angle.
Preferably, in the exhaust passage exhaust structure described above, the exhaust beats of the first cylinder and the second cylinder are alternately performed.
An engine having a plurality of cylinders in which exhaust strokes are alternately performed, an exhaust passage exhaust structure as described above being provided between two adjacent cylinders which are different in exhaust stroke.
According to the exhaust passage exhaust structure provided by the invention, the cylinder cover is provided with a first cylinder and a second cylinder which are adjacently arranged, two first exhaust branch air passages of the first cylinder are converged to a first main exhaust passage, and two second exhaust branch air passages of the second cylinder are converged to a second main exhaust passage; the first auxiliary exhaust branch air passage extending from the first exhaust branch air passage and the second auxiliary exhaust branch air passage extending from the second exhaust branch air passage are arranged on one side of the first exhaust branch air passage adjacent to one side of the second exhaust branch air passage; the first auxiliary exhaust branch air passage and the second auxiliary exhaust branch air passage are converged to form an auxiliary exhaust passage. With first branch air flue of exhausting and second branch air flue of exhausting all adopt by two way converge to the structure of converging of main exhaust passage all the way, avoided the cylinder cap bolt to be located two exhaust problem of becoming invalid easily between the branch air flue, through stretch out the mode that first pair was exhausted and was propped the air flue and the vice exhaust passage of second on the branch air flue of first branch air flue of exhausting of two adjacent sides of cylinder and second respectively, form main exhaust passage and the carminative structure of vice exhaust passage combination on the cylinder cap, thereby can increase the flow area of exhaust passage, it blocks to reduce the air current, improve the patency of exhausting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a prior art cylinder head exhaust arrangement;
FIG. 2 is an alternative exhaust passage configuration for the cylinder head;
FIG. 3 is a schematic structural diagram of an exhaust structure of an exhaust passage provided by the present invention;
FIG. 4 is a head lower end face structure of the exhaust passage exhaust structure shown in FIG. 3.
Detailed Description
The invention discloses an exhaust structure of an exhaust passage, which ensures the exhaust smoothness of the exhaust passage; the invention also provides an engine.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 3 and 4, fig. 3 is a schematic structural diagram of an exhaust passage exhaust structure provided by the invention; FIG. 4 is a head lower end face structure of the exhaust passage exhaust structure shown in FIG. 3.
The embodiment provides an exhaust passage exhaust structure, a cylinder head 4 is provided with a first cylinder and a second cylinder which are adjacently arranged, two first exhaust branch air passages 101 of the first cylinder are converged to a first main exhaust passage 111, and two second exhaust branch air passages 102 of the second cylinder are converged to a second main exhaust passage 112; a first sub-exhaust branch air passage 121 extending from the first exhaust branch air passage 101 and a second sub-exhaust branch air passage 122 extending from the second exhaust branch air passage 102 are arranged at one side of the first exhaust branch air passage 101 adjacent to the second exhaust branch air passage 102; the first sub exhaust branch gas passage 121 and the second sub exhaust branch gas passage 122 converge to form a sub exhaust passage 103. The first exhaust branch air passage 101 and the second exhaust branch air passage 102 are both of a confluence structure which is formed by converging two paths to a main exhaust passage, a first auxiliary exhaust branch air passage 121 and a second auxiliary exhaust branch air passage 122 are respectively extended from the first exhaust branch air passage 101 and the second exhaust branch air passage 102 on the adjacent sides of two cylinders, and a main exhaust passage and auxiliary exhaust passage combined exhaust structure is formed on the cylinder cover 4, so that the flow area of the exhaust passage can be increased, the unobstructed airflow blockage is reduced, and the exhaust performance is improved.
In a specific embodiment of the present disclosure, the exhaust structures of the first cylinder and the second cylinder are symmetrically arranged. In two cylinders with alternately-performed intake beats, when the first cylinder and the second cylinder perform exhaust branch air passage confluence, the first cylinder and the second cylinder are converged by the deviation of adjacent exhaust branch air passages towards the outer exhaust branch air passage.
Specifically, the first cylinder has a first exhaust structure including a first main exhaust passage 111, a first exhaust branch passage 101, and a first sub exhaust branch passage 121, and the second cylinder has a second exhaust structure including a second main exhaust passage 112, a second exhaust branch passage 102, and a second sub exhaust branch passage 122.
As shown in fig. 3, the exhaust passage arrangement direction on the cylinder head of the cylinder is specifically that the position of the first exhaust branch passage 101 at the left side part is fixed, and the first exhaust branch passage 101 at the right side part is shifted to the left to realize confluence of the two first exhaust branch passages 101; the two second exhaust branch air passages 102 adopt a confluence structure symmetrical to the two first exhaust branch air passages 101, and the second exhaust branch air passage 102 on the left side is shifted to the right and is converged with the second exhaust branch air passage 102 on the right side. By setting the exhaust structures of the first cylinder and the second cylinder to be basically symmetrical structures, good exhaust capacity is obtained, and stable exhaust is guaranteed.
In an embodiment of the present disclosure, the check valve 11 is disposed on each of the first sub exhaust branch air passage 121 and the second sub exhaust branch air passage 122, and the check valve 11 is disposed close to the confluence position of the sub exhaust passage 103. For a 6-cylinder engine, the ignition sequence of the engine usually adopts an alternate ignition mode, so that the sequence of the air intake and the air exhaust of each group of cylinders from the air intake side 5 is that when a first cylinder is used for air intake, a second cylinder is used for air exhaust; when the first cylinder exhausts, the second cylinder admits air; the intake and exhaust actions of the two cylinders are alternately performed. Check valves 11 are arranged in the first auxiliary exhaust branch air passage 121 and the second auxiliary exhaust branch air passage 122, so that mutual interference between adjacent cylinders is prevented, and exhaust safety is guaranteed. Meanwhile, the check valve 11 should be arranged at a position close to the front end of the auxiliary exhaust passage 103, so that exhaust gas can smoothly enter the auxiliary exhaust passage 103 through the auxiliary exhaust branch air passage, and stable exhaust gas is ensured.
Further, the first main exhaust passage 111 has a first exhaust outlet 8 with a first exhaust outlet area S1, the auxiliary exhaust passage 103 has a second exhaust outlet 9 with a second exhaust outlet area S2, the two first exhaust branch passages of the first cylinder have the same exhaust inlet 13 structure, the exhaust inlet 13 has an exhaust inlet area S3, the cylinder head 4 is provided with an exhaust inlet 13, the exhaust inlet 13 has a valve seat 14, and the position of the exhaust inlet area S3 of the exhaust inlet 13 is the inner circle position defined by the valve seat 14; the first exhaust gas outlet area S1, the second exhaust gas outlet area S2, and the exhaust gas inlet area S3 satisfy: s1+ S2 is more than 2S3, namely the sum of the first exhaust outlet area S1 and the second exhaust outlet area S2 is more than 2 times of the exhaust inlet area S3, namely the area of the total exhaust outlet is more than the total exhaust area, so that the smooth discharge of exhaust gas is ensured.
Because the first auxiliary exhaust branch air passage 121 and the second auxiliary exhaust branch air passage 122 are opened alternatively with the work of the first cylinder and the second cylinder, in each exhaust process, the first main exhaust passage 111 and the first auxiliary exhaust branch air passage 121, or the second main exhaust passage 112 and the second auxiliary exhaust branch air passage 122 are alternately exhausted, and therefore, smooth exhaust can be ensured only by ensuring that the exhaust outlet area of exhaust is larger than the total exhaust area in the cylinder.
In a specific embodiment of the scheme, a plurality of flange bolt mounting holes 2 are distributed on the cylinder head 4, the flange bolt mounting holes 2 are distributed among the first main exhaust passage 111, the second main exhaust passage 112 and the auxiliary exhaust passage 103, and cooling water channels 10 distributed on two sides of the auxiliary exhaust passage 103 are arranged on the cylinder head 4. Cylinder cylinder cap 4 passes through cylinder head bolt intercommunication flange bolt mounting hole 2, realize that cylinder cap 4 is connected with the cylinder body, the position of arranging of flange bolt mounting hole 2 arranges with the exhaust passage structure simultaneously, the high temperature structure for avoiding the exhaust passage causes the connection structure of cylinder head bolt to become invalid, make it all can arrange flange bolt mounting hole 2 between first main exhaust passage 111 and the second main exhaust passage 112 with adding vice exhaust passage 103, arrange cooling water passageway 10 respectively in the both sides of vice exhaust passage 103, it cooperates with the structure of converging of first exhaust branch air way 101 and second exhaust branch air way 102, make between vice exhaust passage 103 and first cylinder and the second cylinder, leave the space of arranging the cooling water passageway, can cool off the flange bolt, guarantee joint strength.
In an embodiment of the present invention, the air inlet of the first sub-exhaust branch passage 121 is located at the lower end of the connection line between the centers of the heads of the two first exhaust branch passages 101, and the head of the first exhaust branch passage 101 refers to the end of the first exhaust branch passage 101 connected to the first cylinder.
The adjacent sides of the first exhaust branch duct 101 and the second exhaust branch duct 102 are offset in the direction away from each other along the airflow direction, and converge to the main exhaust duct on the corresponding side. The two first exhaust branch gas passages 101 and the two second exhaust branch gas passages 102 both have a confluence angle of a confluence direction, and the confluence angle is an acute angle.
Combining the confluence structure of the first exhaust branch air passages 101 and the second exhaust branch air passages 102, for example, in a first cylinder, the right parts of the two first exhaust branch air passages 101 change directions towards the left and converge, the leading-out positions of the first exhaust branch air passages 101 are lower than the lower ends of the connecting lines of the head centers of the two first exhaust branch air passages 101, the two first exhaust branch air passages 101 are close to each other, the adjacent inner walls are merged and converge, the intersection angle of the central lines of the two first exhaust branch air passages 101 is determined as the confluence angle, and the confluence angle is an acute angle, so that the exhaust can be smoothly led out by the main exhaust passage and the auxiliary exhaust passage. The adjacent side of the first exhaust branch air passage 101 and the adjacent side of the second exhaust branch air passage 102 are far away from each other along the airflow direction, so that the first main exhaust passage and the second main exhaust passage are far away from each other, a larger distance is obtained, and the influence on the bolt connection stability of a cylinder cover is reduced.
Based on the exhaust passage exhaust structure provided in the above embodiment, the invention also provides an engine, which has a plurality of cylinders with alternately performed exhaust beats, and the exhaust passage exhaust structure provided in the above embodiment is adopted between two adjacent cylinders with different exhaust beats.
Because the engine adopts the exhaust passage exhaust structure of the above embodiment, please refer to the above embodiment for the beneficial effects brought by the exhaust passage exhaust structure of the engine.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. An exhaust passage exhaust structure is characterized in that a cylinder cover is provided with a first cylinder and a second cylinder which are adjacently arranged, two first exhaust branch air passages of the first cylinder are converged to a first main exhaust passage, and two second exhaust branch air passages of the second cylinder are converged to a second main exhaust passage;
a first auxiliary exhaust branch air passage extending from the first exhaust branch air passage and a second auxiliary exhaust branch air passage extending from the second exhaust branch air passage are arranged on one side of the first exhaust branch air passage adjacent to one side of the second exhaust branch air passage;
the first auxiliary exhaust branch air passage and the second auxiliary exhaust branch air passage are converged to form an auxiliary exhaust passage;
exhaust structures of the first cylinder and the second cylinder are symmetrically arranged, one-way valves are respectively arranged on the first auxiliary exhaust branch air passage and the second auxiliary exhaust branch air passage, and the arrangement positions of the one-way valves are close to the confluence position of the auxiliary exhaust passage;
the first main exhaust passage has a first exhaust outlet area S1, the auxiliary exhaust passage has a second exhaust outlet area S2, and the two first exhaust branch passages have the same exhaust inlet area S3; the first exhaust gas outlet area S1, the second exhaust gas outlet area S2, and the exhaust gas inlet area S3 satisfy: s1+ S2 > 2S3.
2. The exhaust passage exhaust structure according to claim 1, wherein a plurality of flange bolt mounting holes are distributed in the cylinder head, the flange bolt mounting holes are distributed among the first main exhaust passage, the second main exhaust passage and the auxiliary exhaust passage, and the cylinder head is provided with cooling water passages distributed on both sides of the auxiliary exhaust passage.
3. The exhaust passage exhaust structure according to claim 2, wherein the inlet of said first sub-exhaust branch passage is located at a lower end of a line connecting centers of heads of both of said first sub-exhaust branch passages.
4. The exhaust passage exhaust structure according to claim 1, wherein adjacent sides of the first exhaust branch passage and the second exhaust branch passage are offset in a direction away from each other in the direction of air flow and merge into the main exhaust passage on the corresponding side.
5. The exhaust passage exhaust structure according to claim 4, wherein both of said first exhaust branch passages and both of said second exhaust branch passages have a confluence angle in a confluence direction, said confluence angle being acute.
6. The exhaust passage exhaust structure according to claim 1, characterized in that exhaust beats of the first cylinder and the second cylinder are alternately performed.
7. An engine having a plurality of cylinders in which exhaust strokes are alternately performed, characterized in that an exhaust passage exhaust structure according to any one of claims 1 to 6 is provided between two cylinders that are adjacent and different in exhaust strokes.
CN202211261199.4A 2022-10-14 2022-10-14 Exhaust passage exhaust structure and engine Active CN115324762B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211261199.4A CN115324762B (en) 2022-10-14 2022-10-14 Exhaust passage exhaust structure and engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211261199.4A CN115324762B (en) 2022-10-14 2022-10-14 Exhaust passage exhaust structure and engine

Publications (2)

Publication Number Publication Date
CN115324762A CN115324762A (en) 2022-11-11
CN115324762B true CN115324762B (en) 2023-03-21

Family

ID=83913336

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211261199.4A Active CN115324762B (en) 2022-10-14 2022-10-14 Exhaust passage exhaust structure and engine

Country Status (1)

Country Link
CN (1) CN115324762B (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4098712B2 (en) * 2003-12-25 2008-06-11 本田技研工業株式会社 Exhaust manifold integrated engine cooling structure
JP2006083756A (en) * 2004-09-15 2006-03-30 Daihatsu Motor Co Ltd Structure of cylinder head in multi-cylinder internal combustion engine
KR100916773B1 (en) * 2007-12-12 2009-09-14 현대자동차주식회사 Cylinder having integrated port-exhaust manifold
US8079214B2 (en) * 2007-12-14 2011-12-20 Hyundai Motor Company Integrally formed engine exhaust manifold and cylinder head
JP6248614B2 (en) * 2013-12-24 2017-12-20 三菱自動車工業株式会社 Cylinder head structure
JP7362214B2 (en) * 2020-01-30 2023-10-17 ダイハツ工業株式会社 Structure of internal combustion engine exhaust system
CN213478456U (en) * 2020-10-13 2021-06-18 潍柴动力股份有限公司 Exhaust pipe structure and engine
CN213478510U (en) * 2020-10-28 2021-06-18 中国第一汽车股份有限公司 Cylinder cover of engine, engine and automobile
CN114320650A (en) * 2022-03-16 2022-04-12 潍柴动力股份有限公司 Cylinder head and engine

Also Published As

Publication number Publication date
CN115324762A (en) 2022-11-11

Similar Documents

Publication Publication Date Title
CN1348058A (en) Engine cylinder cover
EP2888465A1 (en) Exhaust passage structure for internal combustion engine
CN114135380A (en) Exhaust manifold
CN113606053B (en) Cylinder head double-layer water jacket structure of cross flow cooling engine
CN115324762B (en) Exhaust passage exhaust structure and engine
CN218235285U (en) Exhaust passage and engine
CN116291935A (en) Cylinder head system, engine and vehicle
CN216111067U (en) Air inlet pipe of engine
JP3599161B2 (en) Exhaust gas recirculation system for internal combustion engine
CN213478456U (en) Exhaust pipe structure and engine
JP5916366B2 (en) Exhaust gas recirculation device
CN213478510U (en) Cylinder cover of engine, engine and automobile
CN113606054B (en) Cylinder head double-layer water jacket structure of cross flow cooling engine
JPS63230946A (en) Multicylinder engine block for internal combustion engine
JP2003184643A (en) Cooling water passage structure for cylinder head
JP2023037974A (en) Cylinder head of engine with four cylinders aligned in series
JP6447104B2 (en) Intake manifold
JPS62159729A (en) Intake air port for internal combustion engine
CN220869508U (en) Exhaust manifold, engine and vehicle
CN216381589U (en) Pulse exhaust manifold assembly
CN217481413U (en) Cylinder head, engine and vehicle
CN205089469U (en) Integral cylinder cover of diesel engine with parallel air valves
CN217712763U (en) Low-exhaust cylinder of asymmetric scavenging passage
CN210460912U (en) Air inlet manifold with intercooler and EGR distribution pipe
JP4325173B2 (en) Direct injection diesel engine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant