CN204783314U - Automobile engine's valve mechanism cover oil duct assembly - Google Patents

Automobile engine's valve mechanism cover oil duct assembly Download PDF

Info

Publication number
CN204783314U
CN204783314U CN201520499212.9U CN201520499212U CN204783314U CN 204783314 U CN204783314 U CN 204783314U CN 201520499212 U CN201520499212 U CN 201520499212U CN 204783314 U CN204783314 U CN 204783314U
Authority
CN
China
Prior art keywords
oil duct
cam shaft
valve mechanism
oil
mechanism cover
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.)
Withdrawn - After Issue
Application number
CN201520499212.9U
Other languages
Chinese (zh)
Inventor
钟卫均
刘卓
陈良
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.)
Guangzhou Automobile Group Co Ltd
Original Assignee
Guangzhou Automobile Group 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 Guangzhou Automobile Group Co Ltd filed Critical Guangzhou Automobile Group Co Ltd
Priority to CN201520499212.9U priority Critical patent/CN204783314U/en
Application granted granted Critical
Publication of CN204783314U publication Critical patent/CN204783314U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

The utility model provides an automobile engine's valve mechanism cover oil duct assembly, this automobile engine of includes valve mechanism cover, set up in the camshaft front bearing cover of valve mechanism cover front end, install inlet cam axle and exhaust cam axle in valve mechanism cover's cam shaft hole, install in the camshaft location bearing lid of valve mechanism cover's bearing frame and the cylinder head of being connected with valve mechanism cover, automobile engine's valve mechanism cover oil duct assembly including set up in camshaft front bearing cover's camshaft front bearing cover oil duct, set up in the cylinder head and with the cylinder head main oil gallery of camshaft front bearing cover oil duct intercommunication and set up in inlet cam axle and exhaust cam axle and with the lubricated oil duct of the camshaft of cylinder head main oil gallery intercommunication.

Description

A kind of valve mechanism cover oil duct assembly of motor car engine
Technical field
The utility model relates to automotive field, particularly relates to a kind of valve mechanism cover oil duct assembly of motor car engine.
Background technique
Along with the raising of people's living standard and the fast development of automotive industry, automobile is more and more applied in daily life.In the development process of automobile industry, people, except paying close attention to the factor such as Safety performance, function, comfort property of automobile, also more and more pay attention to the quality of automobile.The valve mechanism cover oil duct assembly part of motor car engine is one of key factor affecting automotive quality.
Usually, the valve mechanism cover oil duct assembly of motor car engine comprises main oil gallery, camshaft lubrication oil duct, VVT (VariableValveTiming, variable timing valve) fuel feeding oil duct, OCV (OilControlValve, OCV Oil Control Valve) solenoid valve fuel feeding oil duct etc.Main oil gallery is arranged in cylinder head.Camshaft lubrication oil duct is multiple and relatively independent be arranged in cylinder head, and the corresponding camshaft neck of each camshaft lubrication oil duct is also communicated with main oil gallery, respectively for this camshaft neck provides lubricant oil.VVT fuel feeding oil duct and OCV solenoid valve fuel feeding oil duct are integrated on the front bearing retainer of camshaft.
In prior art, because the level of integration of cylinder head is higher, internal structure is complicated, therefore, in cylinder head, process multiple camshaft lubrication oil duct, add the complexity of manufacturing procedure and structure, on the one hand, cause Product Process poor, the more difficult control of quality of product, and then affect automotive quality; On the other hand, difficulty of processing and manufacture cost is increased.And OCV solenoid valve fuel feeding oil duct is comparatively complicated, and stroke is longer, technology difficulty is comparatively large, and oil duct to add man-hour easily through because of the blow hole of inside, rate of good product is not high, and then affects automotive quality.
Model utility content
In view of above-mentioned condition, be necessary to provide a kind of and can reduce difficulty of processing and manufacture cost and guarantee the valve mechanism cover oil duct assembly of the motor car engine of automotive quality.
The utility model provides a kind of valve mechanism cover oil duct assembly of motor car engine, this motor car engine comprises valve mechanism cover, be arranged at the front bearing cover of cam shaft of described valve mechanism cover front end, be installed on the admission cam shaft in the camshaft hole of described valve mechanism cover and exhaust cam shaft, the camshaft positioning bearing lid being installed on the bearing support of described valve mechanism cover and the cylinder head be connected with described valve mechanism cover, the valve mechanism cover oil duct assembly of described motor car engine comprises the front bearing cover of cam shaft oil duct being arranged at described front bearing cover of cam shaft, be arranged at described cylinder head and the cylinder head main oil gallery be communicated with described front bearing cover of cam shaft oil duct and be arranged at described admission cam shaft and exhaust cam shaft and the camshaft lubrication oil duct be communicated with described cylinder head main oil gallery.
According to one embodiment of present invention, described camshaft lubrication oil duct comprises admission cam shaft oil leab and exhaust cam shaft grease way.
According to one embodiment of present invention, described admission cam shaft oil leab comprise be arranged at described camshaft positioning bearing lid and the positioning bearing lid oil duct be communicated with described cylinder head main oil gallery, be arranged at described admission cam shaft and the admission cam shaft hollow oil duct be communicated with described positioning bearing lid oil duct and the admission cam shaft axle journal oil duct be communicated with described admission cam shaft hollow oil duct being arranged at described admission cam shaft.
According to one embodiment of present invention, described exhaust cam shaft oil leab comprise be arranged at described camshaft positioning bearing lid and the positioning bearing lid oil duct be communicated with described cylinder head main oil gallery, be arranged at described exhaust cam shaft and the exhaust cam shaft hollow oil duct be communicated with described positioning bearing lid oil duct and be arranged at described exhaust cam shaft and the exhaust cam shaft axle journal oil duct be communicated with described exhaust cam shaft hollow oil duct.
According to one embodiment of present invention, described front bearing cover of cam shaft oil duct comprises the horizontal oil duct cast oil pocket and be communicated with described casting oil pocket.
According to one embodiment of present invention, described horizontal oil duct is two, is symmetricly set on described front bearing cover of cam shaft.
According to one embodiment of present invention, described valve mechanism cover oil duct assembly also comprise be arranged at described front bearing cover of cam shaft and the OCV solenoid valve fuel feeding oil duct be communicated with described front bearing cover of cam shaft oil duct, described OCV solenoid valve fuel feeding oil duct is communicated with the casting oil pocket of described front bearing cover of cam shaft oil duct.
According to one embodiment of present invention, described cylinder head main oil gallery is two, is symmetricly set in described cylinder head, and two described cylinder head main oil gallerys are communicated with two horizontal oil ducts of described front bearing cover of cam shaft oil duct respectively.
According to one embodiment of present invention, described admission cam shaft axle journal oil duct is multiple, and the corresponding camshaft neck of each described admission cam shaft axle journal oil duct also provides lubricant oil for this camshaft neck.
According to one embodiment of present invention, described valve mechanism cover oil duct assembly also comprises the rear end being arranged at described admission cam shaft and the vacuum pump oil duct be communicated with admission cam shaft hollow oil duct.
Described valve mechanism cover oil duct assembly also comprise be arranged at described front bearing cover of cam shaft and the VVT fuel feeding oil duct be communicated with described OCV solenoid valve fuel feeding oil duct.
The beneficial effect that the technological scheme of the utility model embodiment is brought is: because camshaft lubrication oil duct is arranged at admission cam shaft and exhaust cam shaft, avoid the level of integration because of cylinder head higher and the factor such as internal structure is complicated and add the complexity of manufacturing procedure and structure, therefore, on the one hand, improve Product Process, thus improve the quality of products, and then guarantee automotive quality; On the other hand, difficulty of processing and manufacture cost is reduced.And, OCV solenoid valve fuel feeding oil duct is communicated with front bearing cover of cam shaft oil duct, and directly from front bearing cover of cam shaft oil duct fuel feeding, OCV solenoid valve fuel feeding oil duct is made to have the advantages such as stroke is short, resistance is little, thus reduction technology difficulty, and avoid oil duct to add easily throughly because of the blow hole of inside causing the defect that rate of good product is not high man-hour, and then guarantee automotive quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the valve mechanism cover oil duct assembly of motor car engine of the present utility model;
Embodiment
For further setting forth the utility model for the technological means reaching predetermined model utility object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to embodiment of the present utility model, structure, feature and effect thereof, be described in detail as follows.
The cylinder head 107 referring to Fig. 1, the motor car engine that the utility model relates to comprises valve mechanism cover 101, be arranged at the front bearing cover of cam shaft 102 of valve mechanism cover 101 front end, be installed on admission cam shaft 103 in the camshaft hole of valve mechanism cover 101 and exhaust cam shaft 104, the camshaft positioning bearing lid 105 being installed on the bearing support of valve mechanism cover 101 by bolt, locating stud and camshaft rear bearing cover 106 and be connected with valve mechanism cover 101.
The valve mechanism cover oil duct assembly 100 of motor car engine provided by the invention comprises front bearing cover of cam shaft oil duct 10, the OCV solenoid valve fuel feeding oil duct 20 be communicated with front bearing cover of cam shaft oil duct 10, the VVT fuel feeding oil duct 30 be communicated with OCV solenoid valve fuel feeding oil duct 20, the cylinder head main oil gallery 40 be communicated with front bearing cover of cam shaft oil duct 10 and the camshaft lubrication oil duct 50 be communicated with cylinder head main oil gallery 40.
Front bearing cover of cam shaft oil duct 10 is arranged on front bearing cover of cam shaft 102.The horizontal oil duct 14 that front bearing cover of cam shaft oil duct 10 comprises casting oil pocket 12 and is communicated with casting oil pocket 12.Horizontal oil duct 14 is two, is symmetricly set on front bearing cover of cam shaft 102.
OCV solenoid valve fuel feeding oil duct 20 is arranged on front bearing cover of cam shaft 102.OCV solenoid valve fuel feeding oil duct 20 is communicated with the casting oil pocket 12 of front bearing cover of cam shaft oil duct 10.OCV solenoid valve fuel feeding oil duct 20 is direct casting on front bearing cover of cam shaft 102.OCV solenoid valve fuel feeding oil duct 20 is fuel feeding from the casting oil pocket 12 of front bearing cover of cam shaft oil duct 10 directly, and OCV solenoid valve fuel feeding oil duct 20 to have stroke short, the advantages such as resistance is little.
VVT fuel feeding oil duct 30 is arranged on front bearing cover of cam shaft 102.VVT fuel feeding oil duct 30 is communicated with OCV solenoid valve fuel feeding oil duct 20.VVT fuel feeding oil duct 30 machine shaping on front bearing cover of cam shaft 102.
Cylinder head main oil gallery 40 is two, is symmetricly set in cylinder head 107.Two cylinder head main oil gallerys 40 are communicated with two horizontal oil ducts 14 of front bearing cover of cam shaft oil duct 10 respectively.
Camshaft lubrication oil duct 50 comprises admission cam shaft oil leab 52 and exhaust cam shaft grease way.The admission cam shaft axle journal oil duct 526 that admission cam shaft oil leab 52 comprises positioning bearing lid oil duct 522, the admission cam shaft hollow oil duct 524 be communicated with positioning bearing lid oil duct 522 and is communicated with admission cam shaft hollow oil duct 524.Positioning bearing lid oil duct 522 is arranged at camshaft positioning bearing lid 105, and positioning bearing lid oil duct 522 is communicated with a cylinder head main oil gallery 40.Admission cam shaft hollow oil duct 524 is arranged at admission cam shaft 103.Admission cam shaft axle journal oil duct 526 is arranged at admission cam shaft 103 and for multiple, and the corresponding camshaft neck of each admission cam shaft axle journal oil duct 526 also provides lubricant oil for this camshaft neck.Be appreciated that, the structure of exhaust cam shaft oil leab and composition similar to admission cam shaft oil leab 52, the exhaust cam shaft axle journal oil duct comprising positioning bearing lid oil duct, the exhaust cam shaft hollow oil duct be communicated with positioning bearing lid oil duct and be communicated with exhaust cam shaft hollow oil duct, positioning bearing lid oil duct is communicated with another cylinder head main oil gallery, repeats no more here.Admission cam shaft 103 and exhaust cam shaft 104 devise hollow oil duct, on the one hand, are more convenient for lubricating camshaft bearing journal, on the other hand, and not only simplified structure but also alleviate camshaft weight.
Further, the valve mechanism cover oil duct assembly of motor car engine of the present invention also comprises the vacuum pump oil duct 60 be communicated with admission cam shaft hollow oil duct 524.Vacuum pump oil duct 60 is arranged at the rear end of admission cam shaft 103, carries out fuel feeding for vacuum pump.
Please again consult Fig. 1, the Fuel injection system of the valve mechanism cover oil duct assembly 100 of motor car engine of the present invention is as follows:
First, oil from the front bearing cover of cam shaft oil duct 10 of front bearing cover of cam shaft 102, enter the casting oil pocket 12 of front bearing cover of cam shaft oil duct 10, and be divided into two-part at this, a part enters OCV solenoid valve fuel feeding oil duct 20, then flow through OCV solenoid valve and enter VVT fuel feeding oil duct 30, and finally flow into VVT, another part enters the horizontal oil duct 14 of front bearing cover of cam shaft oil duct 10, then two cylinder head main oil gallerys 40 are flow into respectively by two horizontal oil ducts 14, what flow into one of them cylinder head main oil gallery 40 flows into admission cam shaft hollow oil duct 524 by positioning bearing lid oil duct 522, and by multiple admission cam shaft axle journal oil duct 526 respectively to the camshaft neck feed lubrication corresponding to each admission cam shaft axle journal oil duct 526, further, the oil flowing into admission cam shaft hollow oil duct 524 also flows into vacuum pump by the vacuum pump oil duct 60 be communicated with admission cam shaft hollow oil duct 524, to carry out fuel feeding to vacuum pump, the oil flowing into another cylinder head main oil gallery 40 flows into exhaust cam shaft hollow oil duct by positioning bearing lid oil duct, and by multiple exhaust cam shaft axle journal oil duct respectively to the camshaft neck feed lubrication corresponding to each exhaust cam shaft axle journal oil duct.
The beneficial effect that the technological scheme of the utility model embodiment is brought is: because camshaft lubrication oil duct 50 is arranged at admission cam shaft 103 and exhaust cam shaft 104, avoid the level of integration because of cylinder head 107 higher and the factor such as internal structure is complicated and add the complexity of manufacturing procedure and structure, therefore, on the one hand, improve Product Process, thus improve the quality of products, and then guarantee automotive quality; On the other hand, difficulty of processing and manufacture cost is reduced.And admission cam shaft 103 and exhaust cam shaft 104 devise hollow oil duct, on the one hand, be more convenient for lubricating camshaft bearing journal, on the other hand, not only simplified structure but also alleviate camshaft weight.In addition, OCV solenoid valve fuel feeding oil duct 20 is communicated with front bearing cover of cam shaft oil duct 10, and directly from front bearing cover of cam shaft oil duct 10 fuel feeding, OCV solenoid valve fuel feeding oil duct 20 is made to have the advantages such as stroke is short, resistance is little, thus reduction technology difficulty, and avoid oil duct to add easily throughly because of the blow hole of inside causing the defect that rate of good product is not high man-hour, and then guarantee automotive quality.
In the utility model, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, except comprising those listed key elements, but also can comprise other key elements clearly do not listed.
In the utility model, the involved noun of locality such as forward and backward, upper and lower is arranged in figure with component in accompanying drawing and component position each other defines, clear and convenient just in order to expression technology scheme.Should be appreciated that the use of the described noun of locality should not limit the scope of the application's request protection.
When not conflicting, the feature in the utility model in above-described embodiment and embodiment can be combined with each other.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (11)

1. the valve mechanism cover oil duct assembly (100) of a motor car engine, this motor car engine comprises valve mechanism cover (101), be arranged at the front bearing cover of cam shaft (102) of described valve mechanism cover (101) front end, be installed on the admission cam shaft (103) in the camshaft hole of described valve mechanism cover (101) and exhaust cam shaft (104), the camshaft positioning bearing lid (105) being installed on the bearing support of described valve mechanism cover (101) and the cylinder head (107) be connected with described valve mechanism cover (101), it is characterized in that: the valve mechanism cover oil duct assembly of described motor car engine comprises the front bearing cover of cam shaft oil duct (10) being arranged at described front bearing cover of cam shaft (102), be arranged at described cylinder head (107) and the cylinder head main oil gallery (40) be communicated with described front bearing cover of cam shaft oil duct (10) and be arranged at described admission cam shaft (103) and exhaust cam shaft (104) and the camshaft lubrication oil duct (50) be communicated with described cylinder head main oil gallery (40).
2. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 1, is characterized in that: described camshaft lubrication oil duct (50) comprises admission cam shaft oil leab (52) and exhaust cam shaft oil leab.
3. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 2, is characterized in that: described admission cam shaft oil leab (52) comprise be arranged at described camshaft positioning bearing lid (105) and the positioning bearing lid oil duct (522) be communicated with described cylinder head main oil gallery (40), be arranged at described admission cam shaft (103) and the admission cam shaft hollow oil duct (524) be communicated with described positioning bearing lid oil duct (522) and the admission cam shaft axle journal oil duct (526) be communicated with described admission cam shaft hollow oil duct (524) being arranged at described admission cam shaft (103).
4. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 2, is characterized in that: described exhaust cam shaft oil leab comprise be arranged at described camshaft positioning bearing lid (105) and the positioning bearing lid oil duct be communicated with described cylinder head main oil gallery (40), be arranged at described exhaust cam shaft and the exhaust cam shaft hollow oil duct be communicated with described positioning bearing lid oil duct and be arranged at described exhaust cam shaft (104) and the exhaust cam shaft axle journal oil duct be communicated with described exhaust cam shaft hollow oil duct.
5. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 1, is characterized in that: the horizontal oil duct (14) that described front bearing cover of cam shaft oil duct (10) comprises casting oil pocket (12) and is communicated with described casting oil pocket (12).
6. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 5, is characterized in that: described horizontal oil duct (14) is two, is symmetricly set on described front bearing cover of cam shaft (102).
7. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 5, it is characterized in that: described valve mechanism cover oil duct assembly also comprise be arranged at described front bearing cover of cam shaft (102) and OCV solenoid valve fuel feeding oil duct (20) be communicated with described front bearing cover of cam shaft oil duct (10), described OCV solenoid valve fuel feeding oil duct (20) is communicated with the casting oil pocket (12) of described front bearing cover of cam shaft oil duct (10).
8. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 6, it is characterized in that: described cylinder head main oil gallery (40) is two, be symmetricly set in described cylinder head (107), two described cylinder head main oil gallerys (40) are communicated with two horizontal oil ducts (14) of described front bearing cover of cam shaft oil duct (10) respectively.
9. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 3, it is characterized in that: described admission cam shaft axle journal oil duct (526) is for multiple, and the corresponding camshaft neck of each described admission cam shaft axle journal oil duct (526) also provides lubricant oil for this camshaft neck.
10. the valve mechanism cover oil duct assembly of motor car engine as claimed in claim 3, is characterized in that: described valve mechanism cover oil duct assembly also comprises the rear end being arranged at described admission cam shaft (103) and the vacuum pump oil duct (60) be communicated with admission cam shaft hollow oil duct (524).
The valve mechanism cover oil duct assembly of 11. motor car engines as claimed in claim 7, is characterized in that: described valve mechanism cover oil duct assembly also comprise be arranged at described front bearing cover of cam shaft (102) and the VVT fuel feeding oil duct (30) be communicated with described OCV solenoid valve fuel feeding oil duct (20).
CN201520499212.9U 2015-07-10 2015-07-10 Automobile engine's valve mechanism cover oil duct assembly Withdrawn - After Issue CN204783314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520499212.9U CN204783314U (en) 2015-07-10 2015-07-10 Automobile engine's valve mechanism cover oil duct assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520499212.9U CN204783314U (en) 2015-07-10 2015-07-10 Automobile engine's valve mechanism cover oil duct assembly

Publications (1)

Publication Number Publication Date
CN204783314U true CN204783314U (en) 2015-11-18

Family

ID=54523377

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520499212.9U Withdrawn - After Issue CN204783314U (en) 2015-07-10 2015-07-10 Automobile engine's valve mechanism cover oil duct assembly

Country Status (1)

Country Link
CN (1) CN204783314U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105673132A (en) * 2016-03-18 2016-06-15 浙江亚特电器有限公司 Quantitative and one-way oil-gas lubrication system and method for four-stroke engine
CN106321277A (en) * 2015-07-10 2017-01-11 广州汽车集团股份有限公司 Cylinder head cover oil gallery assembly for automobile engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106321277A (en) * 2015-07-10 2017-01-11 广州汽车集团股份有限公司 Cylinder head cover oil gallery assembly for automobile engine
CN106321277B (en) * 2015-07-10 2018-09-11 广州汽车集团股份有限公司 A kind of valve mechanism cover oil duct assembly of automobile engine
CN105673132A (en) * 2016-03-18 2016-06-15 浙江亚特电器有限公司 Quantitative and one-way oil-gas lubrication system and method for four-stroke engine
US11300020B2 (en) 2016-03-18 2022-04-12 Zhejiang Yat Electrical Appliance Co., Ltd Quantitative one-way oil gas lubricant system and method for 4-stroke engine

Similar Documents

Publication Publication Date Title
CN101182793A (en) VVT engine oil gallery
CN204783314U (en) Automobile engine's valve mechanism cover oil duct assembly
CN104989546A (en) Rocker arm chamber assembly for heavy diesel engine
CN101943038A (en) Installation of diesel engine camshaft and lubrication structure
CN106321277B (en) A kind of valve mechanism cover oil duct assembly of automobile engine
CN201475147U (en) Connecting rod of automobile engine
CN203570445U (en) Engine cylinder cover oil circuit structure
CN201858036U (en) Cylinder cover lubricating structure
CN201284678Y (en) Lubrication apparatus for engine camshaft
CN105351400B (en) The rocker arm bracket of cylinder inner brake oils lubrication system
CN102269028A (en) Lubrication oil way of engine
CN206054022U (en) Rocker shaft bed with lubricating function
CN203223260U (en) Integral type engine camshaft bearing cap and camshaft bearing cap component
CN202301455U (en) Multi-oil hole main shaft bushing for engine
CN101922320A (en) Automobile engine camshaft
CN201521324U (en) Novel diesel engine oil duct arrangement structure
CN201202508Y (en) 1.3 L double-overhead 16 air valve petrol engine admission cam shaft
CN204186442U (en) Camshaft lubrication oil channel structures
CN202325723U (en) Engine cam shaft
CN203547815U (en) Engine camshaft, engine and automobile
CN103244234B (en) Oil passage structure of engine
CN106837588B (en) A kind of oil channel structures of cylinder head assembly
CN205173304U (en) Rocker -arm support of jar inner brake lubricating structure that oils
CN106704018A (en) Engine and vehicle
CN102588137A (en) Pulse oil-supply type oil duct of engine cylinder body

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20151118

Effective date of abandoning: 20180911

AV01 Patent right actively abandoned