CN203441555U - Valve outer shell, central solenoid valve and variable valve timing system - Google Patents
Valve outer shell, central solenoid valve and variable valve timing system Download PDFInfo
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- CN203441555U CN203441555U CN201320558140.1U CN201320558140U CN203441555U CN 203441555 U CN203441555 U CN 203441555U CN 201320558140 U CN201320558140 U CN 201320558140U CN 203441555 U CN203441555 U CN 203441555U
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Abstract
The utility model relates to a valve outer shell, a central solenoid valve and a variable valve timing system. The system comprises a cam shaft phase position adjuster and a cam shaft, wherein the adjuster comprises a stator and a rotor located in the stator in a rotatable mode, an axial through hole is formed in the rotor, and an axial cavity is formed in the end face of the cam shaft. The central solenoid valve comprises the valve outer shell and a control piston, the valve outer shell comprises a head part and a rod part connected with the head part, an axial hole is formed in the end face of the head part, the included angle between the clamp face of the head part and the axis of the valve outer shell is an acute angle, the control piston is located in the axial hole and can move in the axis direction of the valve outer shell, the rod part of the valve outer shell sequentially penetrates through the axial through hole of the rotor and the axial cavity of the cam shaft so that the rotor and the cam shaft can be fixedly connected in an anti-torque mode, and the head part and the cam shaft abut against the two sides of the rotor respectively. After the system is used for a period of time, the valve outer shell can still abut against the rotor and will not cause looseness between the rotor and the cam shaft.
Description
Technical field
The utility model belongs to technical field of automobile engine, particularly relate to a kind of for Variable Valve Time (Variable Valve Timing, abbreviation VVT) valve housing of the middle solenoid valve of system, a middle solenoid valve for this valve housing, and a kind of Variable Valve Time that comprises this middle solenoid valve.
Background technique
Variable Valve Time has advantages of the engine power of lifting and moment of torsion, reduction oil consumption and exhaust emissions, therefore on new automobile motor, is widely applied.
As shown in Figure 1, existing a kind of Variable Valve Time comprises: camshaft phase regulator 1, and regulator 1 comprises stator 11 and is rotatably positioned at the rotor 12 of stator 11; Camshaft 2; Middle solenoid valve 3, solenoid valve 3 comprises the valve housing 31 with bolt function, valve housing 31 comprises: head 311 and bar portion (not sign), the bar portion of valve housing 31 is successively through rotor 12, camshaft 2, rotor 12 and camshaft 2 are torsionally fixed together, head 311, camshaft 2 are resisted against respectively the both sides of rotor 12, and shown in Fig. 2, the angle D between the clamp face S of valve housing head 311 and the axis C of valve housing 31 is right angle.
But, after above-mentioned Variable Valve Time is used a period of time, as shown in Figure 3, valve housing head 311 can occur to the distortion away from rotor 12 direction warpages, make to have gap between the outward edge of head clamp face S and the end face of rotor 12, cause the clamping force between valve housing 31 and rotor 12 to reduce, causing between rotor 12 and camshaft 2 can be loosening, so cause the reliability of Variable Valve Time and durability poor.
Therefore, need badly and provide a kind of improved middle solenoid valve to solve the problems referred to above.
Model utility content
Problem to be solved in the utility model is: reliability and the durability of existing Variable Valve Time are poor.
For addressing the above problem, the utility model provides a kind of valve housing of the middle solenoid valve for Variable Valve Time, comprising: head and the bar portion being connected with head, the angle between the clamp face of described head and valve housing axis is acute angle.
Optionally, described angle is 88.75 to 89.75 degree.
Optionally, described bar portion comprises: thread rod part and the polished rod portion between head and thread rod part.
On the basis of above-mentioned valve housing, the utility model also provides a kind of middle solenoid valve for Variable Valve Time, comprising:
Above-mentioned arbitrary described valve housing, the end face of described head is provided with axial bore;
The control piston that be positioned at described axial bore, also can move along valve housing axial direction.
On the basis of above-mentioned middle solenoid valve, the utility model also provides a kind of Variable Valve Time, comprising:
Camshaft phase regulator, described regulator comprises: stator and be rotatably positioned at the rotor of stator, described rotor is provided with axial hole;
End face is provided with the camshaft of axial cavity;
Above-mentioned middle solenoid valve, the bar portion of described valve housing through the axial hole of rotor and the axial cavity of camshaft, is torsionally fixed together described rotor and camshaft successively, and described head, camshaft are resisted against respectively the both sides of rotor.
Compared with prior art, the technical solution of the utility model has the following advantages:
After the Variable Valve Time of the technical program is used a period of time, valve housing head still can be resisted against on rotor, can not cause between rotor and camshaft and become flexible, and then improve reliability and the durability of Variable Valve Time.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of existing a kind of Variable Valve Time;
Fig. 2 is the enlarged view of M part in Fig. 1;
Fig. 3 is the enlarged view of the M part after use a period of time of Variable Valve Time shown in Fig. 1;
Fig. 4 is the cross-sectional view of Variable Valve Time in an embodiment of the present utility model;
Fig. 5 is the enlarged view of M part in Fig. 4;
Fig. 6 is the cross-sectional view of the valve housing of middle solenoid valve in Fig. 4.
Reference numerals list is as follows:
1---camshaft phase regulator; 11---stator; 12---rotor; 121---the first oil duct; 122---the second oil duct;
2---camshaft; 21---cavity;
3---solenoid valve; 31---valve housing; 32---control piston; 311---head; 312---thread rod part; 313---polished rod portion; The axis of C---valve housing; The clamp face of S---head; The end face of E---head; Angle between the clamp face of D---head and the axis of valve housing; P---machine oil enters interface; T---axial bore; A---the first working interface; B---the second working interface.
Embodiment
Explanation of technical terms
The axis of valve housing: the centre symmetry line of valve housing, and this axis is vertical with the end face of the head of valve housing.
For above-mentioned purpose of the present utility model, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
As shown in Figure 4, Variable Valve Time comprises: camshaft phase regulator 1, and regulator 1 comprises: stator 11 and be rotatably positioned at the rotor 12 of stator 11, rotor 12 is provided with axial hole (sign);
End face is provided with the camshaft 2 of axial cavity 21;
The bar portion of valve housing 31 through the axial hole of rotor 12 and the axial cavity 21 of camshaft 2, is torsionally fixed together rotor 12 and camshaft 2 successively, and head 311, camshaft 2 are resisted against respectively the both sides of rotor 12.
When the Variable Valve Time of the technical program has just been brought into use, as shown in Figure 5, the outward edge of valve housing head clamp face S is resisted against on rotor 12.After Variable Valve Time is used a period of time, valve housing head 311 can occur to the distortion away from rotor 12 direction warpages, in this distortion, make before the outward edge of valve housing head 311 departs from the end face of rotor 12, valve housing head 311 still can be resisted against on rotor 12, can not cause between rotor 12 and camshaft 2 and become flexible, and then improve reliability and the durability of Variable Valve Time.
In the present embodiment, as shown in Figure 6, angle D between the clamp face S of valve housing head 311 and the axis C of valve housing 31 is 88.75 to 89.75 degree, makes when just bringing into use the Variable Valve Time of the technical program, and head 311 has enough mechanical strengths.
As shown in Figure 4, the bar portion of valve housing 31 comprises thread rod part 312 and the polished rod portion 313 between head 311 and thread rod part 312, the part cavity 21 of camshaft 2 is tapped hole, and thread rod part 312 and this tapped hole engagement, be torsionally fixed together rotor 12 and camshaft 2.
Continuation, with reference to shown in Fig. 4, is formed with multipair the first hydraulic chamber and the second hydraulic chamber (not shown) between stator 11 and rotor 12.Rotor 12 is provided with multipair the first oil duct 121 and the second oil duct 122, the first oil ducts 121 that radially arrange and is communicated with described the first hydraulic chamber, and the second oil duct 122 is communicated with described the second hydraulic chamber.By an oil duct in the first oil duct 121, the second oil duct 122, pass into pressure machine oil, from another oil duct, flow out without pressure machine oil simultaneously, can order about rotor 12 and rotate with respect to stator 11, thus the corner of control camshaft phase regulator 1.
Shown in Fig. 6, valve housing 31 has the machine oil that radially arranges and be communicated with axial bore T and enters interface P, the first working interface A and the second working interface B, and axis hole T flows out interface as machine oil.The first working interface A of valve housing 31 is communicated with the first oil duct 121, and the second working interface B is communicated with the second oil duct 122.
The second position makes: the pressure machine oil that enters interface P inflow from machine oil successively flows to the second hydraulic chamber through the second working interface B, the second oil duct 122, meanwhile, first flowing out from axial bore T by the first oil duct 121, the first working interface A without pressure machine oil in described the first hydraulic chamber;
The third position makes: machine oil enters between interface P, the first working interface A, the second working interface B, axis hole T and is not communicated with each other.
In the present embodiment, the head of valve housing is directly resisted against on rotor.In other embodiments, the head of valve housing also can be resisted against on rotor indirectly,, between rotor and valve housing head, can also be provided with transition member that is, and this transition member is clamped between valve housing head and rotor.
In the utility model, for the middle solenoid valve of Variable Valve Time, except comprising valve housing and control piston, also can comprise other parts, described other parts can, with reference to existing middle solenoid valve, repeat no more in the utility model.
In the utility model, the structure of camshaft phase regulator can, with reference to prior art, repeat no more in the utility model.
Although the utility model discloses as above, the utility model is not defined in this.Any those skilled in the art, within not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model should be as the criterion with claim limited range.
Claims (5)
1. for a valve housing for the middle solenoid valve of Variable Valve Time, comprising: head and the bar portion being connected with head;
It is characterized in that, the angle between the clamp face of described head and valve housing axis is acute angle.
2. valve housing according to claim 1, is characterized in that, described angle is 88.75 to 89.75 degree.
3. valve housing according to claim 1, is characterized in that, described bar portion comprises: thread rod part and the polished rod portion between head and thread rod part.
4. for a middle solenoid valve for Variable Valve Time, it is characterized in that, comprising:
Valve housing described in claims 1 to 3 any one, the end face of described head is provided with axial bore;
The control piston that be positioned at described axial bore, also can move along valve housing axial direction.
5. a Variable Valve Time, is characterized in that, comprising:
Camshaft phase regulator, described regulator comprises: stator and be rotatably positioned at the rotor of stator, described rotor is provided with axial hole;
End face is provided with the camshaft of axial cavity;
Middle solenoid valve claimed in claim 4, the bar portion of described valve housing is successively through the axial hole of rotor and the axial cavity of camshaft, described rotor and camshaft are torsionally fixed together, and described head, camshaft are resisted against respectively the both sides of rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558140.1U CN203441555U (en) | 2013-09-09 | 2013-09-09 | Valve outer shell, central solenoid valve and variable valve timing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558140.1U CN203441555U (en) | 2013-09-09 | 2013-09-09 | Valve outer shell, central solenoid valve and variable valve timing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441555U true CN203441555U (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320558140.1U Expired - Fee Related CN203441555U (en) | 2013-09-09 | 2013-09-09 | Valve outer shell, central solenoid valve and variable valve timing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150587A (en) * | 2016-08-29 | 2016-11-23 | 台州德尔福汽车部件有限公司 | A kind of middle variable valve timing apparatus and electromotor |
| WO2023019599A1 (en) * | 2021-08-20 | 2023-02-23 | 舍弗勒技术股份两合公司 | Camshaft phase regulator |
-
2013
- 2013-09-09 CN CN201320558140.1U patent/CN203441555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150587A (en) * | 2016-08-29 | 2016-11-23 | 台州德尔福汽车部件有限公司 | A kind of middle variable valve timing apparatus and electromotor |
| CN106150587B (en) * | 2016-08-29 | 2019-02-01 | 浙江富杰德汽车系统有限公司 | A kind of middle variable valve timing apparatus and engine |
| WO2023019599A1 (en) * | 2021-08-20 | 2023-02-23 | 舍弗勒技术股份两合公司 | Camshaft phase regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |