CN101215979A - Engine air valve distribution device - Google Patents
Engine air valve distribution device Download PDFInfo
- Publication number
- CN101215979A CN101215979A CNA2008100257833A CN200810025783A CN101215979A CN 101215979 A CN101215979 A CN 101215979A CN A2008100257833 A CNA2008100257833 A CN A2008100257833A CN 200810025783 A CN200810025783 A CN 200810025783A CN 101215979 A CN101215979 A CN 101215979A
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- cam
- slot
- spring
- valve
- rocking arm
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Abstract
The invention discloses a valve distribution device for an engine, which comprises a valve enclosed with a valve spring, a rocking arm driving the valve to reciprocate, and rotary cams driving the rocking arm to rock. The rocking arm comprises a rocking arm body. The rocking arm body touches the low cam. An insertion slot is arranged inside the rocking arm body. A piston pin is arranged inside the insertion slot. A return spring is arranged between the piston pin and the rocking arm body. A longitudinal slot communicated with the insertion slot is arranged above the insertion slot. A contact block touching the high cam is arranged inside the longitudinal slot. A spring slot is arranged inside the contact cam. A spring is arranged between the spring slot and the rocking arm body. An oil passage communicated with the insertion slot is arranged on the rocking arm body. The oil passage is connected with a hydraulic oil passage arranged on a rockshaft. An electromagnetic valve is arranged on the hydraulic oil passage. As the product adopts an independent variable valve for control and has simple structure, the product can control the lift range and timing of a valve independently, and has the possibility of multilevel variation.
Description
Technical field
The present invention relates to a kind of air gate distribution device of motor.
Background technique
The size that opens and closes constantly and open path of motor inlet and outlet door is very big to performance impact, the tradition valve actuating mechanism is generally the mechanical type distribution device, it has the low and durable characteristics of energy consumption, but its motion timing and valve lift are fixed, reach best though can guarantee the performance of motor operating mode, but then can not fully take into account other operating modes, this is obviously unfavorable concerning the frequent motor car engine of working conditions change.In view of this, people explore changeable air valve distribution actuation techniques, and have proposed some implementations, as VVT, VTEC, VALVETRONIC or the like.But their structure is not that too complexity is exactly that the effect of air gate distribution is undesirable, thereby is difficult to meet people's usage requirement.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of simple in structure, the engine-driving air distributing device that air gate distribution is good.
The present invention solves the technological scheme that its problem adopts:
A kind of air gate distribution device of motor, comprise the valve that is set with valve spring, drive the reciprocating rocking arm of valve, and the rotating cam that drives the rocking arm swing, described rotating cam is the many profile cams axle with physa, it includes high cam and low cam, described rocking arm comprises rocker body; rocker body contacts with low cam, is provided with slot in the described rocker body, is placed with the wrist pin sheet in the slot; be provided with return spring between wrist pin sheet and the rocker body; described slot top is provided with the cannelure that communicates with it, is placed with in the cannelure and the contacted contact block of high cam, is provided with spring groove in the contact block; be provided with spring between contact block and the rocker body; described rocker body is provided with the oil duct that communicates with slot, and oil duct is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with solenoid valve.
The invention has the beneficial effects as follows: this product is because it adopts the valve control of independent variable, thereby make it can control the lift and the timing of a valve separately, the possibility that has possessed multistage variable, because this product has simple in structure, easy to operate, thereby realized the self adaption air gate distribution of motor, guaranteed the better performance index of motor under various operating modes.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is first kind of embodiment's of the present invention a structural representation;
Fig. 2 is the A-A cut-away view of Fig. 1;
Fig. 3 is the motion state schematic representation of Fig. 2;
Fig. 4 is the B-B cut-away view of Fig. 1;
Fig. 5 is the structural representation of the C of Fig. 4 to the removal side cover;
Fig. 6 is second a kind of embodiment's of the present invention structural representation;
Fig. 7 is the D-D cut-away view of Fig. 6;
Fig. 8 is the motion state schematic representation of Fig. 7;
Fig. 9 is the E-E cut-away view of Fig. 6;
Figure 10 is the structural representation of the F of Fig. 9 to the removal side cover;
Figure 11 is the third embodiment's of the present invention a structural representation;
Figure 12 is the G-G cut-away view of Figure 11;
Figure 13 is the motion state schematic representation of Figure 11;
Figure 14 is the H-H cut-away view of Figure 11;
Figure 15 is the structural representation of the I of Figure 14 to the removal side cover.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, be a kind of first kind of mode of execution of engine valve air distributing device, it comprises the valve 1 that is set with valve spring 11, drive the reciprocating rocking arm 3 of valve 1, and the rotating cam 4 that drives rocking arm 3 swings, valve spring 11 makes motor valve when compression stroke and expansion space stroke be in closed condition; Described cam 4 is that its middle part is high cam 41 with the wide camshaft of the two-wheel of physa, and the left and right sides is low cam 42.
Described rocking arm 3 comprises and the contacted rocker body 5 of low cam, be provided with transverse groove 51 in the described rocker body 5, be placed with the wrist pin sheet 6 and the return spring 61 of band through hole 61 in the transverse groove 51, the opening of transverse groove 51 is provided with and return spring 61 contacted spring seats 21, described transverse groove 51 tops are provided with cannelure 52, be placed with in the cannelure 52 and high cam 41 contacted contact blocks 8, the through hole 61 that contact block 8 can be positioned at wrist pin sheet 6 vertically moves, contact block 8 is provided with spring groove 81, be provided with the spring 7 that passes through hole 61 in the spring groove 81, described rocker body 3 is provided with the oil duct 53 that communicates with transverse groove 51, oil duct 53 is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with the solenoid valve of may command hydraulic fluid pressure.
This product is in order to make hydraulic oil under the control of solenoid valve wrist pin sheet 6 to be promoted forward, and described wrist pin sheet 6 is provided with the groove 62 that communicates with oil duct 53.
The working principle of first kind of mode of execution is: with reference to Fig. 4, when motor is worked with lower-speed state, contact with rocking arm 3 with the low cam 42 in the left and right sides of the wide camshaft of the two-wheel of physa, at this moment regulate the solenoid valve of hydraulic fluid pressure owing to be in open mode, so though high cam 41 is in contact with one another with contact block 8, but its driving spring 7 is in empty moving state, rocking arm 3 is not applied power, at this moment the lift of valve and the lower-speed state of a timing apply engine.
With reference to Fig. 5, when motor is worked with fast state, the electromagnetic valve hydraulic fluid pressure makes wrist pin sheet 6 overcome the pressure of return spring 61 toward the motion of spring seat 21 directions, thereby enter the bottom of contact block 8, withstanding contact block 8 can not move downward, at this moment, thereby move with the high cam 41 at the wide camshaft of the two-wheel of the physa middle part promotion rocking arm 3 that contacts with contact block 8, this product has only the same physa when the wide camshaft of two-wheel to contact with rocking arm 3, just can reach and carry out the purpose that surface of contact switches, the lift of this valve and timing are applicable to the fast state of motor by high cam control.
When motor was returned to lower-speed state, solenoid valve lowered hydraulic fluid pressure, and at this moment, wrist pin sheet 6 is got back to the origin-location under the pressure of return spring 61, thereby makes the lift of valve and the lower-speed state that timing is returned to motor.
With reference to Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, be a kind of second kind of mode of execution of engine valve air distributing device, its rotating cam 4 is that its right side is high cam 41 with the wide camshaft of the two-wheel of physa, the left side is low cam 42.
Described rocking arm 3 comprises rocker body 5; be installed with on the rocker body 5 and the contacted side cover 22 of low cam; be provided with in the described rocker body 5; following transverse groove 51; 52; described side cover 22 is incumbent on; following transverse groove 51; on 52 the opening; place wrist pin sheet 6 in the described transverse groove 51 down; go up in the transverse groove 52 and be provided with the return spring 61 of roof pressure on wrist pin sheet 6; described transverse groove 51 tops down are provided with the cannelure 53 that communicates with it; be placed with in the cannelure 53 and high cam 41 contacted contact blocks 8; be provided with spring groove 81 in the contact block 8; be provided with spring 7 between spring groove 81 and the rocker body 5; described contact block 8 is a cylindrical body; in order to make wrist pin sheet 6 bigger with the area of contact of contact block 8, spring groove 81 departs from the center line setting of contact block 8; Described rocker body 3 is provided with the oil duct 53 that communicates with last transverse groove 52, and oil duct 53 is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with solenoid valve.
The working principle of second kind of mode of execution is: when motor is worked with lower-speed state, low cam 42 with the wide camshaft of the two-wheel of physa contacts with side cover 22, at this moment regulate the solenoid valve of hydraulic fluid pressure owing to be in open mode, so though high cam 41 is in contact with one another with contact block 8, but its driving spring 7 is in empty moving state, rocking arm 3 is not applied power, at this moment the lift of valve and the lower-speed state of a timing apply engine.
When motor is worked with fast state, the electromagnetic valve hydraulic fluid pressure makes wrist pin sheet 6 overcome the pressure of return spring 61 toward the motion of contact block 8 directions, thereby enter the bottom of contact block 8, withstanding contact block 8 can not move downward, at this moment, high cam 41 with the wide camshaft of the two-wheel of physa contacts with contact block 8, this product has only the same physa when the wide camshaft of two-wheel to contact with rocking arm 3, could realize the purpose that surface of contact switches, the lift of this valve and timing are applicable to the fast state of motor by high cam 41 controls.
When motor was returned to lower-speed state, solenoid valve lowered hydraulic fluid pressure, and at this moment, wrist pin sheet 6 is got back to the origin-location under the pressure of return spring 61, thereby makes the lift of valve and the lower-speed state that timing is returned to motor.
With reference to Figure 11, Figure 12, Figure 13, Figure 14, Figure 15, be the third mode of execution of a kind of engine valve air distributing device, its rotating cam 4 is that its right side is high cam 41 with the wide camshaft of the two-wheel of physa, the left side is low cam 42.
Described rocking arm 3 comprises rocker body 5; be installed with on the rocker body 5 and the contacted side cover 23 of low cam; be provided with slot 51 in the described rocker body 5; described side cover 23 covers on slot 51 openings; be placed with wrist pin sheet 6 in the slot 51; be provided with return spring 61 between wrist pin sheet 6 and the rocker body 5; described slot 51 tops are provided with the cannelure 52 that communicates with it; be placed with in the cannelure 52 and high cam 41 contacted contact blocks 8; be provided with spring groove 81 in the contact block 8; be provided with spring 7 between spring groove 81 and the rocker body 5; described contact block 8 is a cylindrical body; in order to make wrist pin sheet 6 bigger with the area of contact of contact block 8, spring groove 81 departs from the center line setting of contact block 8; Described rocker body 5 is provided with the oil duct 53 that communicates with slot 51, and oil duct 53 is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with solenoid valve.
The working principle of the third mode of execution is: when motor is worked with lower-speed state, low cam 42 with the wide camshaft of the two-wheel of physa contacts with side cover 23, at this moment regulate the solenoid valve of hydraulic fluid pressure owing to be in open mode, so though high cam 41 is in contact with one another with contact block 8, but its driving spring 7 is in empty moving state, rocking arm 3 is not applied power, at this moment the lift of valve and the lower-speed state of a timing apply engine.
When motor is worked with fast state, the electromagnetic valve hydraulic fluid pressure makes wrist pin sheet 6 overcome the pressure of return spring 61 toward the motion of contact block 8 directions, thereby enter the bottom of contact block 8, withstanding contact block 8 can not move downward, at this moment, thereby move with the high cam 41 of the wide camshaft of the two-wheel of the physa promotion rocking arm 3 that contacts with contact block 8, this product has only the same physa when the wide camshaft of two-wheel to contact with rocking arm 3, could realize the purpose that surface of contact switches, the lift of this valve and timing are applicable to the fast state of motor by high cam 41 controls.
When motor was returned to lower-speed state, solenoid valve lowered hydraulic fluid pressure, and at this moment, wrist pin sheet 6 is got back to the origin-location under the pressure of return spring 61, thereby makes the lift of valve and the lower-speed state that timing is returned to motor.
Embodiment one and two, in order to make hydraulic oil under the control of solenoid valve wrist pin sheet 6 to be promoted forward, described wrist pin sheet 6 is provided with and rushes down oilhole 62; In addition, also rocker body 5 be provided with communicate with cannelure 52 rush down pore 54.
This product is because it adopts the valve control of independent variable, and it is rational in infrastructure, overall weight is identical with the rocking arm of common engine, thereby make it can control the lift and the timing of a valve separately, the possibility that has possessed multistage variable is because this product has simple in structure, easy to operate, thereby realized the self adaption air gate distribution of motor, guaranteed the better performance index of motor under various operating modes.
Claims (8)
1. the air gate distribution device of an engine; Comprise the valve (1) that is set with valve spring (11); Drive the reciprocating rocking arm (3) of valve (1); And the rotating cam (4) that drives rocking arm (3) swing; It is characterized in that: described rotating cam (4) is the many profile cams axle with physa; It includes high cam (41) and low cam (42); Described rocking arm (3) comprises rocker body (5); Rocker body (5) contacts with low cam (42); Be provided with slot (51) in the described rocker body (5); Be placed with piston pin sheet (6) in the slot (51); Be provided with return spring (61) between piston pin sheet (6) and the rocker body (5); Described slot (51) top is provided with the cannelure (52) that communicates with it; Be placed with in the cannelure (52) and the contacted contact block of high cam (41) (8); Be provided with spring groove (81) in the contact block (8); Be provided with spring (7) between contact block (8) and the rocker body (5); Be provided with the oil duct (53) that communicates with slot (51) on the described rocker body (5); Oil duct (53) is connected with hydraulic oil channel on the rocker arm shaft, is provided with magnetic valve on the hydraulic oil channel.
2. the air gate distribution device of a kind of motor according to claim 1, it is characterized in that: described rotating cam (4) is the two-wheel exterior feature camshaft with physa, its middle part is high cam (41), the left and right sides is low cam (42), described wrist pin sheet (6) is provided with through hole (62), the opening of slot (51) is provided with and the contacted spring seat of return spring (61) (21), and described spring (7) passes wrist pin sheet (6) and goes up through hole (62).
3. the air gate distribution device of a kind of motor according to claim 2, it is characterized in that: described wrist pin sheet (6) is provided with the groove (63) that communicates with oil duct (53).
4. the air gate distribution device of a kind of motor according to claim 1, it is characterized in that: described rotating cam (4) is the two-wheel exterior feature camshaft with physa, its right side is high cam (41), the left side is low cam (42), be installed with on the described rocker body (5) and the contacted side cover of low cam (22), described rocker body is provided with in (5), following slot (51,52), described side cover (22) is incumbent on, following slot (51,52) on the opening, place wrist pin sheet (6) in the described slot (51) down, be provided with the return spring (61) of roof pressure on wrist pin sheet (6) in the last slot (52).
5. the air gate distribution device of a kind of motor according to claim 1, it is characterized in that: described rotating cam (4) is the two-wheel exterior feature camshaft with physa, its right side is high cam (41), the left side is low cam (42), be installed with on the described rocker body (5) and the contacted side cover of low cam (23), described side cover (23) covers on slot (51) opening, is provided with return spring (61) between wrist pin sheet (6) and the rocker body (5).
6. according to the air gate distribution device of claim 4 or 5 described a kind of motors, it is characterized in that: described wrist pin sheet (6) is provided with and rushes down oilhole (62).
7. according to the air gate distribution device of claim 4 or 5 described a kind of motors, it is characterized in that: described rocker body (5) be provided with communicate with cannelure (52) rush down pore (54).
8. according to the air gate distribution device of claim 2 or 4 or 5 described a kind of motors, it is characterized in that: described contact block (8) is a cylindrical body, and spring groove (81) departs from the center line setting of contact block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100257833A CN101215979A (en) | 2008-01-15 | 2008-01-15 | Engine air valve distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100257833A CN101215979A (en) | 2008-01-15 | 2008-01-15 | Engine air valve distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101215979A true CN101215979A (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100257833A Pending CN101215979A (en) | 2008-01-15 | 2008-01-15 | Engine air valve distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101215979A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355277A (en) * | 2017-08-31 | 2017-11-17 | 吉林大学 | A kind of engine variable discharge capacity variable lift valve operating mechanism |
| CN110131055A (en) * | 2019-05-10 | 2019-08-16 | 天津大学 | A kind of deactivation apparatus suitable for engine |
-
2008
- 2008-01-15 CN CNA2008100257833A patent/CN101215979A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355277A (en) * | 2017-08-31 | 2017-11-17 | 吉林大学 | A kind of engine variable discharge capacity variable lift valve operating mechanism |
| CN107355277B (en) * | 2017-08-31 | 2023-04-07 | 吉林大学 | Variable-displacement variable-lift valve mechanism of engine |
| CN110131055A (en) * | 2019-05-10 | 2019-08-16 | 天津大学 | A kind of deactivation apparatus suitable for engine |
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Open date: 20080709 |