CN106401682A - Rocker arm auxiliary unit applied to engine cylinder head - Google Patents
Rocker arm auxiliary unit applied to engine cylinder head Download PDFInfo
- Publication number
- CN106401682A CN106401682A CN201510461212.4A CN201510461212A CN106401682A CN 106401682 A CN106401682 A CN 106401682A CN 201510461212 A CN201510461212 A CN 201510461212A CN 106401682 A CN106401682 A CN 106401682A
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- CN
- China
- Prior art keywords
- intake rocker
- cylinder head
- auxiliary unit
- rocking arm
- arm auxiliary
- 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.)
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- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention relates to a rocker arm auxiliary unit applied to an engine cylinder head. The rocker arm auxiliary unit comprises a check mechanism, and a contact portion arranged on a second air inlet rocker arm. The second air inlet rocker arm is further provided with a check end capable of making contact with the check mechanism, and the contact portion is arranged at the check end. The check mechanism comprises a framework which is provided with a containing portion and detachably arranged above a cam shaft seat, at least one elastic element located at the containing portion, and a check plunger capable of making contact with the second air inlet rocker arm below the check plunger. Convenience of maintenance engineering of the check mechanism is improved in this way.
Description
Technical field
The present invention about a kind of rocking arm auxiliary unit for engine cylinder head, be espespecially used in into
This non-return mechanism on second intake rocker (high-lift) of gas rocking arm set, maintenance engineering facilitates
The rocking arm auxiliary unit for engine cylinder head changed.
Background technology
In the variable vehicle lift mechanism technical field of engine, applicant has created TWI479076
The patent of invention case of number " variable vehicle lift mechanism of engine ".Thereby provide engine porthole
Lift one preferably transmutability.
However, the patent of invention case of No. TWI479076 " variable vehicle lift mechanism of engine ",
Wherein this heel brace mechanism A is directed towards the setting of cylinder body direction that is to say, that this heel brace mechanism A
It is provided at the lower section of this intake rocker, thus resulted in this heel brace mechanism A maintainability difficult.Cause
This, applicant is then further directed to this No. TWI479076 " the variable vehicle lift machine of engine
The patent of invention case of structure " makees further improvement.
Content of the invention
Present invention is primarily aimed at a kind of rocking arm auxiliary unit for engine cylinder head, mainly
It is maintenance caused by the position that the heel brace mechanism group in overcoming engine variable vehicle lift mechanism sets
Difficult defect.
The present invention is to reach the technical way that above-mentioned purpose adopted to be：One kind is used for engine
The rocking arm auxiliary unit of cylinder head, this cylinder head is provided in a cylinder body, and this cylinder head sets
There is the camshaft holder of supporting cam wheel axle and inlet and outlet rocker arm shaft, and be provided with and can be interlocked by camshaft
Intake rocker, and the air intake valve that can be opened by intake rocker；Described camshaft be provided with to
Few one first admission cam, and at least one second admission cam, one is arranged in intake rocker axle
And to should the first admission cam the first intake rocker, and one adjacent with the first intake rocker wear
Located at intake rocker axle and to should the second admission cam the second intake rocker；Described first enters
Between gas rocking arm and the second intake rocker, can by a switching mechanism be combined synchronous shake with
Depart from synchronous shake, wherein, this first intake rocker is provided with can be by the first admission cam pushing and withstanding
First pushing and withstanding end, and pressable air intake valve first press-side；This second intake rocker is provided with can
By the second pushing and withstanding end of the second admission cam pushing and withstanding, this rocking arm auxiliary unit, comprise a non-return machine
Structure, one located at the second intake rocker contact site, this second intake rocker is additionally provided with can be with non-return
The non-return end of mechanism contacts, described contact site is provided on non-return end；This non-return mechanism comprises,
One possesses holding part and is removably arranged at framework above camshaft holder, and at least one
In the flexible member of this holding part, with the non-return plunger that can contact with lower section second intake rocker.
The present invention is by above-mentioned attainable effect of technological means：By being used in air inlet
This non-return mechanism on second intake rocker (high-lift) of rocking arm set, is directly to be attached to this
On camshaft holder, and make the holding part that this non-return mechanism is with this framework, become away from camshaft
Side is attached on this camshaft holder towards the angularly disposed mode of cylinder head perisporium, thereby on the one hand
The convenience of this non-return mechanism maintenance can be facilitated, on the other hand, cylinder head can be suppressed further
Maximization, part in cylinder head can be made to configure more compact, it is to avoid cylinder head gigantism, have
Benefit space configuration on car load for the cylinder head.
Preferably, the holding part of this framework includes an opening towards the second intake rocker, and
One away from the second intake rocker stop end；One pad is provided between flexible member and stop end.
Preferably, the holding part of this framework includes an opening towards the second intake rocker, and
One away from the second intake rocker stop end, this stop end is provided with a bore and is less than the logical of opening
Hole.
Preferably, this holding part is angularly disposed towards cylinder head perisporium to the side away from camshaft.
Preferably, below this holding part, it is provided with avoidance recess towards the side of camshaft.
Preferably, the framework of this non-return mechanism has installation convex towards intake rocker axle axial direction two ends are extended
Edge, at least one bolting element is through this mounting flange, and is shaken with inserting and not penetrating this air inlet
The mode of arm axle, this framework is anchored on camshaft holder.
Preferably, this rocking arm auxiliary unit, also include at least one located at intake rocker axle positioning
Groove, at least one bolting element is to enter camshaft holder through this framework, and inserts this air inlet and shake
The detent of arm axle.
Preferably, this framework is arranged with abutment sleeve in the mounting flange of at least one end, and
It is arranged with abutment sleeve in the locking part of this camshaft holder.
Preferably, this bolting element at least bolting element be screwed into this intake rocker axle fuel feeding lead to
In road, and restriction effect can be formed to this oil supply gallery.
Brief description
Fig. 1 is the patent of invention case of No. TWI479076 " variable vehicle lift mechanism of engine ".
Fig. 2 is the exploded view of engine cylinder head of the present invention and non-return mechanism.
Fig. 3 is the assembling figure of engine cylinder head of the present invention and non-return mechanism.
Fig. 4 is the schematic diagram of Fig. 3 non-return mechanism B-B sectional view of the present invention.
Fig. 5,6 be Fig. 3 non-return mechanism A-A sectional view of the present invention action schematic diagram.
Fig. 7,8 be switching mechanism of the present invention action schematic diagram.
Specific embodiment
Structure for the present invention and the effect that can reach, now cooperation brief description is as follows：
As shown in Fig. 2,5,6,7,2 groups of the cylinder body of the engine 1 of the present invention is provided with a vapour
Cylinder head 3, this cylinder head 3 is provided with cylinder-head cover 3a；This cylinder head 3 is provided with one and is located at air inlet
The air inlet port 31 of side and air intake valve 32, and one be located at the aerofluxuss port 33 of exhaust side and aerofluxuss
Valve 34.
As shown in Fig. 2,3,4,5, this cylinder head 3 is in this air inlet port 31 and aerofluxuss port 33
Between be provided with a camshaft holder 35, this camshaft holder 35 is can be integrally formed mode to be formed at
On this cylinder head 3, this camshaft holder 35 is provided with the inlet and outlet that can be driven by timing chain 4
Camshaft 36 (hereinafter referred to as camshaft), at least provided with the first admission cam 361 on this camshaft 36
(low lift cam), the second admission cam 362 (high-lift cam) and exhaust cam 363；
At least provided with the intake rocker group 37 that can be interlocked by camshaft 36 and a row on this cylinder head 3
Gas rocking arm 38, this intake rocker group 37 can open this air intake valve 32；This intake rocker group 37
There is one first intake rocker 371 and one second intake rocker 372, this first intake rocker 371
It is to be arranged in an adjacent manner on an intake rocker axle 373 with the second intake rocker 372, this enters
At least provided with a detent 3731 on gas rocker arm shaft 373；This first intake rocker 371 is right
Answer this first admission cam 361, this second intake rocker 372 is to correspond to this second air inlet
Cam 362；This first intake rocker 371 has can be by the of the first admission cam 361 pushing and withstanding
One pushing and withstanding end 3711, and pressable air intake valve 32 first press-side 3712, this second enters
Gas rocking arm 372 have can by the second pushing and withstanding end 3721 of the second admission cam 362 pushing and withstanding, and
Pressable air intake valve 32 first press-side 3712；This first intake rocker 371 enters with second
Be provided between gas rocking arm 372 can a switching mechanism 39, this switching mechanism 39 can make this first
Intake rocker 371 and the second intake rocker 372 are combined synchronous shake and depart from synchronous shake.
As shown in Figure 7,8, this switching mechanism 39 is by a spring 392 and one and oil controlling valve
The driving oil circuit 391 that (not drawing in accompanying drawing) connects, to obtain the elastic force of this spring 392
And power oil sources, and the displacement by first piston 393 and second piston 394, to make this
One intake rocker 371 and the second intake rocker 372 are combined synchronous shake and depart from synchronous shaking
Dynamic action.
As shown in Figure 2,3, 4, this intake rocker group 37 is provided with a rocking arm auxiliary unit 5,
This rocking arm auxiliary unit 5 comprises a non-return mechanism 51, on this second intake rocker 372
Non-return end 52；This non-return mechanism 51 includes one and possesses holding part 5111 and removably
It is arranged at the framework 511 of camshaft holder 35 top, and at least one is located at this holding part 5111
Flexible member 512, one can contact with located at this second intake rocker 372 non-return end 52
Non-return plunger 513, one located at this framework 511 holding part 5111 and can be by this flexible member 512
The non-return pad 514 of contact.
As shown in Figure 2,3, 4, the both sides of this framework 511 are provided with mounting flange portion 5112, should
At least one locking hole 5113 is each provided with two mounting flange portions 5112, this framework 511
Holding part 5111 has an opening 51111, Yi Jiyuan towards this second intake rocker 372
From the stop end 51112 of this second intake rocker 372, this stop end 51112 is provided with from framework
Small-bore through hole 5114 in this holding part 5111 of 511 outer insertions, this through hole 5114 is available for moistening
Lubricating oil liquid enters in this framework 511, and this framework 511 is provided with one in setting through hole 5114 opposite side
The avoidance recess 5115 of arc shape.
As shown in Figure 2,3, 4, this flexible member 512 is the appearance being incorporated in this framework 511
Put in portion 5111, this flexible member 512 one end is to press on this non-return plunger 513, another
End is then resisted against on this non-return pad 514.
As shown in Figure 2,3, 4, this non-return plunger 513 stops towards this second intake rocker 372
Go back to end 52 and be convexly equipped with contact site 5131, this non-return plunger 513 is in setting contact site 5131
Opposite side is provided with groove 5132, and one end that this groove 5132 is available for this flexible member 512 houses
And compress.
As shown in Figure 2,3, 4, this non-return pad 514 is to be accommodated in housing of this framework 511
That is to say, that this non-return pad 514 is in this framework 511 holding part 5111 in portion 5111
Opening 51111 and stop end 51112 between, one end of this non-return pad 514 is towards this bullet
Property element 512 be convexly equipped with one and compress flange 5141, this compresses flange 5141 and is available for this elasticity unit
Part 512 compresses, and this non-return pad 514 is provided with the perforation 5142 of insertion.
As shown in Figure 2,3, 4, this non-return end 52 is by the second of this intake rocker group 37
Projection on intake rocker 372 forms.
As shown in Fig. 2,3,4,5,6, the non-return mechanism 51 of rocking arm auxiliary unit 5 be by
After bolting element S is arranged in the locking hole 5113 of this framework 511 mounting flange portion 5112, come
This framework 511, non-return pad 514, flexible member 512 and non-return plunger 513 etc. will be included
Non-return mechanism 51 be attached on the locking part 351 of this camshaft holder 35, this bolting element S
In the way of inserting and not penetrating this intake rocker axle 373, this framework 511 is anchored on cam
On axle bed 35, with season this non-return plunger 513 contact site 5131, with located at lower section (by
Accompanying drawing regards to see, and the downside of accompanying drawing is lower section) the non-return end 52 of this second intake rocker 372
Form contact.
As shown in Figure 4,5, this non-return mechanism 51 is attached to the locking part of this camshaft holder 35
When on 351, this framework 511 be with this holding part 5111 away from camshaft 36 side towards vapour
The angularly disposed mode of cylinder head 3 perisporium 3b, the separately locking of this framework 511 mounting flange portion 5112
It is arranged with abutment sleeve C, wherein in hole 5113 and in the locking part 351 of this camshaft holder 35
This bolting element S to be screwed into this air inlet by the detent 373 on this intake rocker axle 373 and to shake
In arm axle 373, thereby this non-return mechanism 51 is the holding part 5111 with this framework 511, becomes
Away from the side of camshaft 36, to be attached to this towards the angularly disposed mode of cylinder head 3 perisporium 3b convex
On axle block 35；Thereby can be by the positioning on abutment sleeve C and this intake rocker axle 373
Groove 3731 can form locating effect to this intake rocker group 37, and can eliminate this air inlet
The gap of rocking arm set 37 axial direction, separately at least one bolting element S be screwed into this intake rocker axle 373
Oil supply gallery T in, and restriction effect can be become to this oil supply gallery T-shaped；This framework 511 arc
The avoidance recess 5115 of shape is in this intake rocker group 37, and this air inlet therefore can be provided to shake
Second intake rocker 372 of arm group 37 has abundant swing space, without causing cylinder head 3
Maximization；Another when this non-return mechanism 51 is intended to be keeped in repair it is only necessary to by this cylinder-head cover
3a opens and this non-return mechanism 51 is keeped in repair, and need not dismantle intake rocker group 37 and convex again
Wheel shaft 36, thereby can facilitate the maintenance engineering of this non-return mechanism 51.
Effect of the present invention is, by the second intake rocker being used in intake rocker group 37
This non-return mechanism 51 on 372 (high-lift), is directly to be attached on this camshaft holder 35,
And make the holding part 5111 that this non-return mechanism 51 is with this framework 511, become away from camshaft 36
Side be attached on this camshaft holder 35 towards the angularly disposed mode of cylinder head 3 perisporium 3b,
Thereby on the one hand can facilitate the convenience of this non-return mechanism 51 maintenance, on the other hand, one can be entered
The maximization of step suppression cylinder head 3, can make the part in cylinder head 3 configure more compact, it is to avoid
Cylinder head 3 gigantism, is beneficial to space configuration on car load for the cylinder head 3.
In sum, the present invention, by above-mentioned construction, really can improve existing defect, enter
And reach purpose and effect of institute's demand, meet novelty described in patent of invention, creativeness
And the important document of practicality, therefore the application of patent of invention is proposed in accordance with the law.
Reference numerals list
1 engine
2 cylinder body
3 cylinder head 3a cylinder-head cover 3b cylinder head perisporiums
31 air inlet port 32 air intake valve
33 aerofluxuss port 34 drain tap
35 camshaft holder 351 locking part
36 camshaft 361 first admission cam
362 second admission cam 363 exhaust cam
37 intake rocker groups
371 first intake rocker 3,711 first pushing and withstanding end
3712 first press-sides
372 second intake rocker 3,721 second pushing and withstanding end
373 intake rocker axle 3731 detent
38 exhaust rocker arm 381 exhaust rocker arm
39 switching mechanisms
391 driving oil circuit 392 springs
393 first piston 394 second piston
4 timing chains
5 rocking arm auxiliary units
51 non-return mechanism 511 framework
5111 holding part 51111 opening
51112 stop end
5112 mounting flange portion 5113 locking hole
5114 through hole 5115 avoids recess
512 flexible member 513 non-return plunger
5131 contact site 5132 groove
514 non-return pads 5141 compress flange
5142 perforation
52 non-return ends
A heel brace mechanism
C abutment sleeve
S bolting element
T oil supply gallery
Claims (9)
1. a kind of rocking arm auxiliary unit for engine cylinder head, this cylinder head is provided at a cylinder
On body, this cylinder head is provided with the camshaft holder of supporting cam wheel axle and inlet and outlet rocker arm shaft, and
It is provided with the intake rocker that can be interlocked by camshaft, and the air intake valve that can be opened by intake rocker；
Described camshaft is provided with least one first admission cam, and at least one second admission cam,
One be arranged in intake rocker axle and to should the first admission cam the first intake rocker,
With one adjacent with the first intake rocker it is arranged in intake rocker axle and to should the second admission cam
Second intake rocker；
Between described first intake rocker and the second intake rocker, can carry out by a switching mechanism
Shake with departing from synchronization in conjunction with synchronous shake, wherein,
This first intake rocker is provided with can be by the first pushing and withstanding end of the first admission cam pushing and withstanding, and can
Pressing air intake valve first press-side；
This second intake rocker is provided with can be by the second pushing and withstanding end of the second admission cam pushing and withstanding, and it is special
Levy and be：
This rocking arm auxiliary unit, comprise a non-return mechanism, one located at the second intake rocker contact
Portion,
This second intake rocker is additionally provided with the non-return end that can contact, described contact site with non-return mechanism
It is provided on non-return end；
This non-return mechanism comprises, and one possesses holding part and is removably arranged above camshaft holder
Framework, and at least one flexible member being located at this holding part, and can be with lower section second air inlet
The non-return plunger of rocking arm contact.
2. it is used for the rocking arm auxiliary unit of engine cylinder head, its feature as claimed in claim 1
Be, the holding part of this framework includes an opening towards the second intake rocker, and one away from
The stop end of the second intake rocker；One pad is provided between flexible member and stop end.
3. it is used for the rocking arm auxiliary unit of engine cylinder head, its feature as claimed in claim 1
Be, the holding part of this framework includes an opening towards the second intake rocker, and one away from
The stop end of the second intake rocker, this stop end is provided with the through hole that a bore is less than opening.
4. it is used for the rocking arm auxiliary unit of engine cylinder head, its feature as claimed in claim 1
It is, this holding part is angularly disposed towards cylinder head perisporium to the side away from camshaft.
5. it is used for the rocking arm auxiliary unit of engine cylinder head, its feature as claimed in claim 1
It is, below this holding part, be provided with avoidance recess towards the side of camshaft.
6. it is used for the rocking arm auxiliary unit of engine cylinder head, its feature as claimed in claim 1
It is, towards intake rocker axle axial direction, two ends are extended mounting flange, extremely for the framework of this non-return mechanism
A few bolting element is through this mounting flange, and to insert and not penetrate this intake rocker axle
Mode, this framework is anchored on camshaft holder.
7. it is used for the rocking arm auxiliary unit of engine cylinder head, its feature as claimed in claim 1
Be, this rocking arm auxiliary unit, also include at least one located at intake rocker axle detent,
At least one bolting element is to enter camshaft holder through this framework, and inserts this intake rocker axle
Detent.
8. it is used for the rocking arm auxiliary unit of engine cylinder head, its feature as claimed in claim 6
It is, this framework is arranged with abutment sleeve in the mounting flange of at least one end, and this cam
It is arranged with abutment sleeve in the locking part of axle bed.
9. it is used for the rocking arm auxiliary unit of engine cylinder head, its feature as claimed in claim 7
It is, this bolting element at least bolting element is screwed in the oil supply gallery of this intake rocker axle,
And restriction effect can be formed to this oil supply gallery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510461212.4A CN106401682B (en) | 2015-07-31 | 2015-07-31 | Rocker arm auxiliary unit for engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510461212.4A CN106401682B (en) | 2015-07-31 | 2015-07-31 | Rocker arm auxiliary unit for engine cylinder head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401682A true CN106401682A (en) | 2017-02-15 |
| CN106401682B CN106401682B (en) | 2019-11-08 |
Family
ID=58007266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510461212.4A Active CN106401682B (en) | 2015-07-31 | 2015-07-31 | Rocker arm auxiliary unit for engine cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401682B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202746026U (en) * | 2012-09-10 | 2013-02-20 | 三阳工业股份有限公司 | Engine cylinder head structure |
| TW201311994A (en) * | 2011-09-02 | 2013-03-16 | Kwang Yang Motor Co | Variable valve lifting mechanism of engine |
| KR101382327B1 (en) * | 2012-10-17 | 2014-04-08 | 현대자동차 주식회사 | Variable valve lift device |
| TW201425715A (en) * | 2012-12-27 | 2014-07-01 | Kwang Yang Motor Co | Internal combustion engine with easy replacement of rocker arm shaft |
| CN103912329A (en) * | 2013-01-05 | 2014-07-09 | 光阳工业股份有限公司 | Internal combustion engine facilitating extraction and replacement of rocker arm shaft |
| US9038587B2 (en) * | 2012-12-17 | 2015-05-26 | Hyundai Motor Company | Variable valve lift device |
-
2015
- 2015-07-31 CN CN201510461212.4A patent/CN106401682B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201311994A (en) * | 2011-09-02 | 2013-03-16 | Kwang Yang Motor Co | Variable valve lifting mechanism of engine |
| CN202746026U (en) * | 2012-09-10 | 2013-02-20 | 三阳工业股份有限公司 | Engine cylinder head structure |
| KR101382327B1 (en) * | 2012-10-17 | 2014-04-08 | 현대자동차 주식회사 | Variable valve lift device |
| US9038587B2 (en) * | 2012-12-17 | 2015-05-26 | Hyundai Motor Company | Variable valve lift device |
| TW201425715A (en) * | 2012-12-27 | 2014-07-01 | Kwang Yang Motor Co | Internal combustion engine with easy replacement of rocker arm shaft |
| CN103912329A (en) * | 2013-01-05 | 2014-07-09 | 光阳工业股份有限公司 | Internal combustion engine facilitating extraction and replacement of rocker arm shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106401682B (en) | 2019-11-08 |
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