CN108915814A - A kind of common rail diesel engine camshaft drive - Google Patents
A kind of common rail diesel engine camshaft drive Download PDFInfo
- Publication number
- CN108915814A CN108915814A CN201810987577.4A CN201810987577A CN108915814A CN 108915814 A CN108915814 A CN 108915814A CN 201810987577 A CN201810987577 A CN 201810987577A CN 108915814 A CN108915814 A CN 108915814A
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- Prior art keywords
- wheel hub
- cylindrical body
- hole
- diameter
- camshaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- 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
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention belongs to field of mechanical technique, propose a kind of common rail diesel engine camshaft drive.A kind of common rail diesel engine camshaft drive proposed has the wheel hub in ladder shaft-like；The center of wheel hub has ladder hole；The right end face of wheel hub has the blind hole to be interference fitted with camshaft；There is the radial direction oil hole being connected to ladder hole on wheel hub；The center of camshaft has the force feed oil duct II being connected with ladder hole；The left end of camshaft and the wheel hub are interference fitted, and right end stretches out wheel hub and is supported in body by cam shaft bush；It is equipped with drive end bearing bracket on wheel hub, and is provided with the bearing insert with spider creep cooperation between drive end bearing bracket and wheel hub；Gap between bearing insert and wheel hub is connected to the radial direction oil hole；The driving gear with its clearance fit is equipped on wheel hub；The left end of wheel hub is fixed with thrust brake.Present invention effectively prevents the inordinate wears of driving end cam neck bush；Improve the reliability of camshaft drive.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of common rail diesel engine camshaft drive.
Background technique
Camshaft is the important component of diesel engine, it is quantitatively opened by driving rocker arm, valve train, control timing of valve
It opens and closes, provide in-cylinder combustion necessary fresh air for diesel engine, guarantee the external output power of diesel engine.
Camshaft drive is the important component of diesel engine air distribution system, it provides power for camshaft, driving
Camshaft rotation, whether design method is reasonable, directly determines the reliability of camshaft work;For many high-speed high-powers
For diesel engine, camshaft actuated end attachment is excessive, weight is excessive, generates biggish moment of flexure to the camshaft bearing at driving end,
Easily cause bearing inordinate wear at this；Simultaneously as the axial thrust of drive bevel gear acts on, camshaft during the work time can
Axial float is generated, this is unfavorable to the normal operation of camshaft, it is necessary to design reasonable camshaft thrust device and eliminate not
Benefit influences；It needs to arrange common rail pump gear and its idler mechanism for many common rail diesel engines, in gear housing, in this way
In narrow space, very big difficulty is brought to the arrangement of camshaft drive.
For the common rail diesel engine of high-speed high-power, designing reasonable camshaft drive is that many diesel engines are set
The problem of meter producer must be taken into consideration.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to propose to a kind of common rail diesel engine camshaft drives.
The present invention, which adopts the following technical solutions, completes its invention task：
A kind of common rail diesel engine camshaft drive, the common rail diesel engine camshaft drive have wheel hub；It is described
Wheel hub is the ladder shaft-like structure being made of the cylindrical body of multistage different-diameter；The cylindrical body of multistage different-diameter from left to right according to
Secondary is the first cylindrical body, the second cylindrical body, third cylindrical body and the 4th cylindrical body, and is had to the left at the center of the first cylindrical body
Round boss outstanding；The diameter of second cylindrical body is less than less than the diameter of the first cylindrical body, the diameter of the first cylindrical body
The diameter of third cylindrical body, third cylindrical body diameter less than the 4th cylindrical body diameter；The center of the wheel hub has ladder
Through-hole；The ladder hole is followed successively by threaded hole, throttle orifice, force feed oil duct I and oil groove from left to right；The throttle orifice
Diameter be less than the threaded hole diameter；The diameter of the threaded hole is identical as the diameter of force feed oil duct I；The wheel
The right end face of hub has the blind hole to be interference fitted with camshaft；The center of the blind hole bottom surface has connection force feed
The short slot of oil duct I；There is the radial direction oil hole being connected to the force feed oil duct I on the wheel hub；In the camshaft
The heart has the force feed oil duct II being connected with the force feed oil duct I；The left end of the camshaft and the wheel
Hub interference fit, right end stretch out the wheel hub and are supported in body by cam shaft bush；First cylindrical body described in wheel hub
On be equipped with drive end bearing bracket, and be provided between the drive end bearing bracket and the first cylindrical body of wheel hub and the first cylindrical body clearance fit
Bearing insert；The outer ring of the bearing insert and the drive end bearing bracket are interference fitted, the outer circle of inner ring and first cylindrical body
The floating support of clearance fit formation wheel hub；Gap between bearing insert and the first cylindrical body is connected to the radial direction oil hole；
One end of wheel hub is connect with camshaft interference, and other end floating mount is in the bearing insert of drive end bearing bracket, diesel engine work
When, oil film is established between bearing insert and wheel hub, oil film carries the gravity of each attachment in camshaft actuated end, effectively avoids driving
The inordinate wear of moved end cam shaft bush；The driving gear with its clearance fit is equipped on third cylindrical body described in wheel hub；
The 4th cylindrical body for being nested with the driving gear and wheel hub on third cylindrical body connects firmly；The left end of the wheel hub is fixed with only
Pushing device；The thrust brake has the connecting flange being nested on the round boss described in wheel hub left end；The connection method
Blue and described round boss clearance fit；The connecting flange is connected firmly with the wheel hub；The connecting flange and institute
Thrust ring is provided between the bearing insert stated；The thrust ring is nested on first cylindrical body, and with it is described before
End cap connects firmly；The thrust brake further includes having thrust button；The thrust button is located at the left side of thrust ring, and with it is described
Drive end bearing bracket connects firmly；It is sealed between the drive end bearing bracket and the thrust button outer circle by sealing ring；The thrust button is served as reasons
The ladder shaft-like structure that major diameter axis and small diameter shaft are constituted；The major diameter axle position is in the left side of small diameter shaft；It is described to stop
With the gap of 0.1mm between the right end face of push-plate and the left end face of connecting flange；In the thrust button right end face
The heart has the groove being recessed inwardly；The groove is connected to threaded hole described in hub centre, formed to thrust lid and
The oil-way that the gap of connecting flange is lubricated.
The center of the driving gear has the through-hole cooperated with spider creep；If the outer circle of the driving gear is evenly equipped with
Dry to kiss the helical teeth matched with the drive bevel gear of common rail diesel engine；Have for being connected firmly with wheel hub on the driving gear
Connect through-hole；The described connection through-hole is along uniformly distributed multiple of through-bore axis；On the driving gear also have to wheel hub
The dowel hole connected firmly.
With multiple connecting holes and a pin hole for being connected firmly with driving gear on the 4th cylindrical body of wheel hub.
There is the disk of through-hole, and institute on through-hole described in connecting flange center and wheel hub centered on the connecting flange
The round boss clearance fit stated.
A kind of common rail diesel engine camshaft drive proposed by the present invention, by adopting the above technical scheme, have has as follows
Beneficial effect：
1）One end of wheel hub is connect with camshaft interference, the other end floating mount, diesel oil in the bearing insert inner hole of drive end bearing bracket
When machine works, oil film is established between bearing insert and wheel hub, oil film carries the gravity of each attachment in camshaft actuated end, effectively
Avoid the inordinate wear of driving end cam neck bush；Improve the reliability of camshaft drive；
2）It needs to arrange common rail pump gear and its idler mechanism for many common rail diesel engines, in gear housing, this will
Camshaft drive is asked to prevent from interfering in the region overlapped；In the technical program, one end of wheel hub and camshaft interference
Connection, therefore do not need to arrange screw and cam axis connection on wheel hub, keep the outside diameter of third multi-diameter shaft on the right side of wheel hub big
Width reduces, and solves the problems, such as that driving device and other geared parts are interfered；
3）When diesel engine works, camshaft drive gear 3 is acted in the axial thrust of drive bevel gear, along cam shaft to altering
It is dynamic, if not controlling shifting amount, it will the abrasion of the parts such as aggravation cam shaft bush, cam and tappet；The technical program setting stops
Pushing device, and reasonable gap is devised between thrust button and connecting flange, between connecting flange and thrust ring, make camshaft
When along axial leftward or rightward play, shifting amount is all controllable.
4）To avoid between bearing insert and wheel hub, generating inordinate wear between thrust component, the technical program is devised
Force feed channel, the i.e. machine oil with certain pressure flow through hub centre hole from oilhole among camshaft, then a part of machine
Oil is entered between bearing insert and the work axle journal of wheel hub by the radial direction oil hole on wheel hub realizes force feed, and another part is logical
Throttle orifice is crossed, into the cavity of thrust button, and flows between thrust button and connecting flange, realized between connecting flange and thrust ring
Force feed.
5）Thrust ring, connecting flange, thrust button are expendable part, there is certain life cycle, need periodic inspection or
Replacement；The design of camshaft thrust component is in the outside of drive end bearing bracket in the present invention, in disassembly, it is only necessary to fastening bolt of successively dismantling
II, thrust button, fastening bolt I, connecting flange, thrust ring, that is, complete the disassembly so thrust component, and installation method walks therewith
Suddenly on the contrary, in whole dismounting or installation process, the complex parts such as disassembly drive end bearing bracket is not needed, are dismounted easily and time saving and energy saving, are had
There is good maintenanceability.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of wheel hub in the present invention.
In figure：1, wheel hub；1-1, the first cylindrical body.1-2, the second cylindrical body, 1-3, third cylindrical body, 1-4, the 4th circle
Column, 1-5, round boss, 1-6, threaded hole, 1-7, throttle orifice, 1-8, force feed oil duct I, 1-9, radial direction oil hole, 2, clamping
Pin；3, gear is driven；4, fastening bolt I；5, bearing insert；6, positioning pin；7, thrust ring；8, connecting flange；9, fastening bolt
Ⅱ；10, thrust button；11, sealing ring, 12, camshaft, 12-1, force feed oil duct II, 13, cam shaft bush, 14, body,
15, drive end bearing bracket.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing：
As shown in Figure 1, a kind of common rail diesel engine camshaft drive, the common rail diesel engine camshaft drive has
Wheel hub 1；In conjunction with Fig. 2, the wheel hub 1 is the ladder shaft-like structure being made of the cylindrical body of multistage different-diameter；Multistage is different straight
The cylindrical body of diameter is followed successively by the first cylindrical body 1-1, the second cylindrical body 1-2, third cylindrical body 1-3 and the 4th cylindrical body from left to right
1-4, and there is round boss 1-5 outstanding to the left at the center of the first cylindrical body 1-1；The diameter of the second cylindrical body 1-2
The diameter of diameter, the first cylindrical body 1-1 less than the first cylindrical body 1-1 is less than diameter, the third cylindrical body of third cylindrical body 1-3
Diameter of the diameter of 1-3 less than the 4th cylindrical body 1-4；The center of the wheel hub 1 has ladder hole；The ladder hole by
From left to right is followed successively by threaded hole 1-6, throttle orifice 1-7, I 1-8 of force feed oil duct and oil groove；The diameter of the throttle orifice 1-7 is small
In the diameter of the threaded hole 1-6；The diameter of the threaded hole 1-6 is identical as the diameter of I 1-8 of force feed oil duct；It is described
The right end face of wheel hub 1 has the blind hole to be interference fitted with camshaft；The center of the blind hole bottom surface has connection pressure
The short slot of I 1-8 of oil leab；There is the radial direction oil hole 1-9 being connected to the force feed oil duct I on the wheel hub 1；It is described
The center of camshaft 12 has II 12-1 of force feed oil duct being connected with I 1-9 of force feed oil duct；The cam
The left end of axis 12 and the wheel hub 1 are interference fitted, and right end stretches out the wheel hub 1 and is supported on body by cam shaft bush 13
In 14；Drive end bearing bracket 15, and the first cylindrical body of the drive end bearing bracket 15 and wheel hub are equipped on first cylindrical body 1-1 described in wheel hub
Between be provided with bearing insert 5 with the first cylindrical body clearance fit；The outer ring of the bearing insert 5 and the drive end bearing bracket 15
The outer circle clearance fit of interference fit, inner ring and first cylindrical body forms the floating support of wheel hub；Bearing insert 5 and first
Radial direction oil hole 1-9 described in gap connection between cylindrical body；One end of wheel hub 1 is connect with 12 interference of camshaft, and the other end is floating
It is dynamic to be mounted in the bearing insert 5 of drive end bearing bracket, when diesel engine works, oil film is established between bearing insert and wheel hub, oil
Film carries the gravity of each attachment in camshaft actuated end, effectively avoids the inordinate wear of driving end cam neck bush；Described in wheel hub
Third cylindrical body 1-3 on be equipped with driving gear 3 with its clearance fit；It is nested with the sliding tooth on third cylindrical body
Wheel 3 is connected firmly by fastening bolt I 4 and clamping pin 2 and the 4th cylindrical body 1-4 of wheel hub；The fastening bolt I 4 is ten；Institute
The clamping pin 2 stated is one；The left end of the wheel hub 1 is fixed with thrust brake；The thrust brake, which has, to be nested in wheel hub
Connecting flange 8 on round boss 1-5 described in left end；There is the disk of through-hole, and connection method centered on the connecting flange
The round boss 1-5 clearance fit on through-hole described in blue center and wheel hub；The connecting flange 8 and the wheel hub
1 connects firmly；Thrust ring 7 is provided between the connecting flange 8 and the bearing insert 5；The thrust ring 7 is nested in institute
It states on the first cylindrical body 1-1, and is connected firmly by positioning pin 6 with the drive end bearing bracket 15；The thrust brake further includes having only
Push-plate 10；The thrust button 10 is located at the left side of thrust ring 7, and connects firmly with the drive end bearing bracket 12；The drive end bearing bracket 12
It is sealed between the thrust button outer circle by sealing ring 11；The thrust button 12 is by major diameter axis and small diameter shaft structure
At ladder shaft-like structure；The major diameter axle position is in the left side of small diameter shaft；The right end face and connection of the thrust button
With the gap of 0.1mm between the left end face of flange；The center of the thrust button right end face has the groove being recessed inwardly；
The groove is connected to threaded hole described in hub centre, and formation is lubricated to the gap to thrust lid and connecting flange
Oil-way.
The center of the driving gear has the through-hole cooperated with spider creep；If the outer circle of the driving gear is evenly equipped with
Dry to kiss the helical teeth matched with the drive bevel gear of common rail diesel engine；Have for being connected firmly with wheel hub on the driving gear
Connect through-hole；The described connection through-hole is along uniformly distributed multiple of through-bore axis；On the driving gear also have to wheel hub
The dowel hole connected firmly.
With multiple connecting holes and a pin hole for being connected firmly with driving gear on the 4th cylindrical body of wheel hub.
To avoid between bearing insert 5 and wheel hub 1, generating between thrust component inordinate wear, the present invention is in use, have
The machine oil of certain pressure flows through the force feed oil duct I of wheel hub 1 from the force feed oil duct II among camshaft, then a part of
Machine oil is entered between bearing insert 5 and the work axle journal of wheel hub 1 by the radial direction oil hole on wheel hub realizes force feed, another portion
Point by throttle orifice, into the groove of thrust button, and flow between thrust button 10 and connecting flange 8, connecting flange 8 and thrust ring
Force feed is realized between 7.
Claims (4)
1. a kind of common rail diesel engine camshaft drive, the common rail diesel engine camshaft drive has wheel hub；Its
It is characterized in that；The wheel hub is the ladder shaft-like structure being made of the cylindrical body of multistage different-diameter；The circle of multistage different-diameter
Cylinder is followed successively by the first cylindrical body, the second cylindrical body, third cylindrical body and the 4th cylindrical body from left to right, and in the first cylindrical body
Center there is round boss outstanding to the left；Diameter of the diameter of second cylindrical body less than the first cylindrical body, the first circle
The diameter of cylinder be less than the diameter of third cylindrical body, third cylindrical body diameter less than the 4th cylindrical body diameter；The wheel hub
Center have ladder hole；The ladder hole is followed successively by threaded hole, throttle orifice, I and of force feed oil duct from left to right
Oil groove；The diameter of the throttle orifice is less than the diameter of the threaded hole；The diameter of the threaded hole and force feed oil duct I
Diameter is identical；The right end face of the wheel hub has the blind hole to be interference fitted with camshaft；The center of the blind hole bottom surface
Short slot with connection force feed oil duct I；There is the radial oil being connected to the force feed oil duct I on the wheel hub
Hole；The center of the camshaft has the force feed oil duct II being connected with the force feed oil duct I；The camshaft
Left end and the wheel hub be interference fitted, right end stretches out the wheel hub and is supported in body by cam shaft bush；Wheel hub
It is equipped with drive end bearing bracket on first cylindrical body, and is provided between the drive end bearing bracket and the first cylindrical body of wheel hub and first
The bearing insert of cylindrical body clearance fit；The outer ring of the bearing insert and the drive end bearing bracket are interference fitted, inner ring with it is described
The outer circle clearance fit of first cylindrical body forms the floating support of wheel hub；Gap between bearing insert and the first cylindrical body is connected to
The radial direction oil hole；One end of wheel hub is connect with camshaft interference, the jewel of the other end floating mount in drive end bearing bracket
In set, when diesel engine works, oil film is established between bearing insert and wheel hub, oil film carries each attachment in camshaft actuated end
Gravity effectively avoids the inordinate wear of driving end cam neck bush；It is equipped on third cylindrical body described in wheel hub and its gap
The driving gear of cooperation；The 4th cylindrical body for being nested with the driving gear and wheel hub on third cylindrical body connects firmly；The wheel
The left end of hub is fixed with thrust brake；The thrust brake has the connection method being nested on the round boss described in wheel hub left end
It is blue；The connecting flange and the round boss clearance fit；The connecting flange is connected firmly with the wheel hub；It is described
Connecting flange and the bearing insert between be provided with thrust ring；The thrust ring is nested in first cylindrical body
On, and connected firmly with the drive end bearing bracket；The thrust brake further includes having thrust button；The thrust button is located at thrust ring
Left side, and connected firmly with the drive end bearing bracket；It is sealed between the drive end bearing bracket and the thrust button outer circle by sealing ring；Institute
The thrust button stated is the ladder shaft-like structure being made of major diameter axis and small diameter shaft；The major diameter axle position is in small diameter shaft
Left side；With the gap of 0.1mm between the right end face of the thrust button and the left end face of connecting flange；The thrust button
The center of right end face has the groove being recessed inwardly；The groove is connected to threaded hole described in hub centre, is formed and is used
The oil-way being lubricated with the gap to thrust lid and connecting flange.
2. a kind of common rail diesel engine camshaft drive as described in claim 1, it is characterised in that；The driving gear
Center has the through-hole cooperated with spider creep；It is described driving gear outer circle be evenly equipped with several to common rail diesel engine
Drive bevel gear kisses the helical teeth matched；There is the connection through-hole for connecting firmly with wheel hub on the driving gear；The connection is logical
Hole is along uniformly distributed multiple of through-bore axis；Also there is the dowel hole to connect firmly with wheel hub on the driving gear.
3. a kind of common rail diesel engine camshaft drive as described in claim 1, it is characterised in that；The described 4th of wheel hub
With multiple connecting holes and a pin hole for being connected firmly with driving gear on cylindrical body.
4. a kind of common rail diesel engine camshaft drive as described in claim 1, it is characterised in that；The connecting flange
Centered on the disk with through-hole, and round boss clearance fit described on through-hole described in connecting flange center and wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987577.4A CN108915814B (en) | 2018-08-28 | 2018-08-28 | Cam shaft driving device of common rail diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987577.4A CN108915814B (en) | 2018-08-28 | 2018-08-28 | Cam shaft driving device of common rail diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108915814A true CN108915814A (en) | 2018-11-30 |
| CN108915814B CN108915814B (en) | 2023-10-20 |
Family
ID=64407305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810987577.4A Active CN108915814B (en) | 2018-08-28 | 2018-08-28 | Cam shaft driving device of common rail diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108915814B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS648508U (en) * | 1987-07-07 | 1989-01-18 | ||
| US5111780A (en) * | 1988-07-15 | 1992-05-12 | Audi Ag | Drive arrangement for a camshaft in an internal combustion engine |
| JPH10196322A (en) * | 1997-01-17 | 1998-07-28 | Mitsubishi Motors Corp | Cam control device for engine |
| DE10141213A1 (en) * | 2001-08-23 | 2003-03-06 | Bayerische Motoren Werke Ag | Arrangement of a camshaft in the cylinder head of an internal combustion engine |
| CN2908795Y (en) * | 2006-02-27 | 2007-06-06 | 运城常运动力机械有限公司 | Anti-channeling mechanism of camshaft |
| CN105298571A (en) * | 2015-11-29 | 2016-02-03 | 重庆元创汽车整线集成有限公司 | Axial limiting structure for cam shaft |
| CN106133313A (en) * | 2014-02-03 | 2016-11-16 | 康明斯公司 | The camshaft thrust guaranteed by travelling gear is controlled |
| CN106640249A (en) * | 2016-11-17 | 2017-05-10 | 河南柴油机重工有限责任公司 | Engine camshaft duplex bevel gear transmission device |
| CN208950659U (en) * | 2018-08-28 | 2019-06-07 | 河南柴油机重工有限责任公司 | A kind of common rail diesel engine camshaft drive |
-
2018
- 2018-08-28 CN CN201810987577.4A patent/CN108915814B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS648508U (en) * | 1987-07-07 | 1989-01-18 | ||
| US5111780A (en) * | 1988-07-15 | 1992-05-12 | Audi Ag | Drive arrangement for a camshaft in an internal combustion engine |
| JPH10196322A (en) * | 1997-01-17 | 1998-07-28 | Mitsubishi Motors Corp | Cam control device for engine |
| DE10141213A1 (en) * | 2001-08-23 | 2003-03-06 | Bayerische Motoren Werke Ag | Arrangement of a camshaft in the cylinder head of an internal combustion engine |
| CN2908795Y (en) * | 2006-02-27 | 2007-06-06 | 运城常运动力机械有限公司 | Anti-channeling mechanism of camshaft |
| CN106133313A (en) * | 2014-02-03 | 2016-11-16 | 康明斯公司 | The camshaft thrust guaranteed by travelling gear is controlled |
| CN105298571A (en) * | 2015-11-29 | 2016-02-03 | 重庆元创汽车整线集成有限公司 | Axial limiting structure for cam shaft |
| CN106640249A (en) * | 2016-11-17 | 2017-05-10 | 河南柴油机重工有限责任公司 | Engine camshaft duplex bevel gear transmission device |
| CN208950659U (en) * | 2018-08-28 | 2019-06-07 | 河南柴油机重工有限责任公司 | A kind of common rail diesel engine camshaft drive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108915814B (en) | 2023-10-20 |
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