CN209818127U - Electromagnetic valve body for camshaft adjuster - Google Patents
Electromagnetic valve body for camshaft adjuster Download PDFInfo
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- CN209818127U CN209818127U CN201920107811.XU CN201920107811U CN209818127U CN 209818127 U CN209818127 U CN 209818127U CN 201920107811 U CN201920107811 U CN 201920107811U CN 209818127 U CN209818127 U CN 209818127U
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- 230000000149 penetrating effect Effects 0.000 claims description 3
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- Valve Device For Special Equipments (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses an electromagnetic valve body for a camshaft adjuster, which belongs to the field of automobile engine accessories, wherein a cavity wall of the valve body is sequentially and radially provided with a C1 control port, an A advancing port, a B lagging port and a C2 control port along the axial direction; the C1 and C2 control ports correspond to a P1 pressure port and a P2 pressure port respectively, and the P1 pressure port and the P2 pressure port are communicated with the P pressure port; the outer wall of the valve core sequentially and radially penetrates to the T oil return channel along the axial direction to form a first oil drainage port and a second oil drainage port C1, an oil drainage port A and a second oil drainage port B, an oil drainage port C2 and a first oil drainage port, and a C1 annular groove, a C2 annular groove and an AB annular groove are formed between the first oil drainage port and the second oil drainage port. Due to the structure, the five-position control oil feeding or draining function can be performed on the advance oil passage, the delay oil passage and the control oil passage.
Description
Technical Field
The utility model belongs to automobile engine accessory field, specifically speaking relate to an electromagnetic valve body for camshaft adjuster.
Background
Camshaft adjusters are technical components for adjusting the phase between a crankshaft and a camshaft in an internal combustion engine. In order to achieve the desired power and torque of the engine in different stages, while having good emissions, it is necessary to adjust the camshaft timing according to the engine speed and load. The camshaft adjuster mainly comprises a stator, a rotor and an electromagnetic valve; the rotor comprises a hub concentrically accommodated in the stator, and the outer ring of the stator is provided with a sector which is protruded inwards in the radial direction; the hub is provided with blades protruding outwards in the radial direction, the blades are embedded between the two sectors, and a pressure cavity formed by the hub, the stator outer ring and the two sectors is divided into an advance pressure cavity and a retard pressure cavity; the stator is connected with the timing chain, and the rotor is connected with the camshaft.
The electromagnetic valve is an important component in a variable valve timing system, and switches an oil channel leading to a camshaft adjuster according to a control signal sent by an engine control system, and controls the oil flow, and the oil pressure enables an inner rotor to rotate forwards or backwards relative to a stator, so that the aim of accurately controlling the rotation angle of the camshaft phase adjuster is fulfilled. The solenoid valve body is a component of the solenoid valve in which the passage changes.
The existing electromagnetic valve is only three positions generally, when the rotor needs to be in a lagging state to a leading state, the oil is supplied to a lagging pressure cavity through the lagging oil channel and drained to a leading oil channel through the leading pressure cavity under the control of the electromagnetic valve; when the rotor needs to be kept at a certain position, the oil of the lagging oil channel and the advancing oil channel is kept, and the oil of the advancing pressure cavity and the lagging pressure cavity are kept through the control of the electromagnetic valve; when the rotor needs to be in the advance state to the retard state, the oil is supplied to the advance pressure cavity through the advance oil passage and drained to the retard oil passage through the retard pressure cavity under the control of the electromagnetic valve. In order to accelerate the phase adjustment response of the camshaft relative to the crankshaft, the three-position valve cannot meet the requirement, and sometimes the five-position valve is needed to supply or drain oil to an additionally-added control oil passage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the aforesaid weak point provide an electromagnetic valve body for camshaft adjuster, can have the function of five control oil feeds or draining to oil passage, hysteresis oil passage and control oil passage in advance. In order to achieve the above object, the utility model provides a following technical scheme:
an electromagnetic valve body 30 for a camshaft adjuster comprises a valve body 31, a valve core 32 axially arranged in a cavity of the valve body 31 and a spring 33 used for driving the valve core 32 to axially move along the cavity of the valve body 31, wherein the valve core 32 is hollow to form a T oil return channel 34, and is characterized in that a C1 control port 81, an A advance port 61, a B retard port 71 and a C2 control port 82 sequentially penetrate through the wall of the cavity of the valve body 31 in the radial direction along the axial direction; the C1 and C2 control ports 81 and 82 correspond to P1 and P2 pressure oil ports 91 and 92 arranged on the inner wall of the cavity of the valve body 31 respectively, and the P1 and P2 pressure oil ports 91 and 92 are communicated and centrally provided with a P pressure oil port 93 radially penetrating through the wall of the cavity of the valve body 31; the outer wall of the valve core 32 sequentially penetrates through the T oil return channel 34 along the axial direction and the radial direction to form a C1 oil drain port I, a C1 oil drain port II, a C2 oil drain port II, a C1 oil drain port I, a C2 oil drain port II, a C2 oil drain port I, a C1 oil drain port II, a C2 oil drain port I, a C; c1, C2 and AB annular grooves 87, 88 and 67 are respectively arranged between the first oil drainage port and the second oil drainage port 83 and 84 of the C1, between the second oil drainage port and the second oil drainage port 86 and 85 of the C2 and between the oil drainage ports 62 and 72 of the A and the B.
For further improvement, the C1 and C2 control ports 81 and 82 can be externally conducted.
To further improve, the C1 control port 81 and the C2 control port 82, the a advance port 61 and the B retard port 71 are all symmetric about the P pressure port 93.
For further improvement, the C1 drain port one 83 and the C2 drain port one 86, the C1 drain port two 84 and the C2 drain port two 85, the C1 annular groove 87 and the C2 annular groove 88, the A drain port 62 and the B drain port 72 are all symmetrical about the AB annular groove 67.
For further improvement, the valve spool 32 has five positions within the cavity of the valve body 31.
To further improve, when the valve core 32 is in the first position of the cavity of the valve body 31, the P pressure port 93 is communicated with the B retarding port 71 through the AB annular groove 67, the a advancing port 61 is communicated with the T oil return passage 34 through the a oil drain port 62, and the C1 control port 81 is communicated with the T oil return passage 34 through the C1 oil drain port one 83; in the second position, the P pressure port 93 is communicated with the B retarding port 71 through the AB annular groove 67, the a advancing port 61 is communicated with the T oil return passage 34 through the a oil release port 62, and the P1 pressure port 91 is communicated with the C1 control port 81 through the C1 annular groove 87; in the third position, the P pressure oil port 93 is not communicated with the A advancing port 61 and the B retarding port 71 through the AB annular groove 67, and the C1 and the C2 control ports 81 and 82 are respectively communicated with the T oil return channel 34 through the C1 and the C2 oil drainage ports 84 and 85; in the fourth position, the P pressure port 93 is communicated with the a advance port 61 through the AB annular groove 67, the B retard port 71 is communicated with the T return passage 34 through the B drain port 72, and the P2 pressure port 92 is communicated with the C2 control port 82 through the C2 annular groove 88; in the fifth position, the P pressure port 93 communicates with the A advance port 61 through the AB annular groove 67, the B retard port 71 communicates with the T return passage 34 through the B drain port 72, and the C2 control port 82 communicates with the T return passage 34 through the C2 drain port one 86.
For further improvement, the number of the oil drainage ports 62 is at least two, and the oil drainage ports 62 are communicated by arranging annular grooves at the outer ports and used for increasing oil drainage speed.
For further improvement, the number of the oil drainage ports 72 is at least two, and the oil drainage ports 72 are communicated by arranging annular grooves at outer ports and used for increasing oil drainage speed.
The utility model has the advantages that:
1. the utility model discloses an electromagnetic valve body for camshaft adjuster is linked together with the other end of oil passageway, hysteresis oil passageway and control oil passageway in advance, can have the function of five control oil feeders or draining to oil passageway, hysteresis oil passageway and control oil passageway in advance through the case in the position change of valve body cavity.
Drawings
Fig. 1 is a schematic view of a first position of a valve element of the present invention in a valve body cavity;
FIG. 2 is a schematic view of a second position of the valve cartridge of the present invention within the valve body cavity;
fig. 3 is a schematic view of the third position of the valve element of the present invention in the valve body cavity;
fig. 4 is a schematic view of the fourth position of the valve element in the valve body cavity according to the present invention;
fig. 5 is a schematic view of a fifth position of the valve element of the present invention in the valve body cavity;
in the drawings: 30-solenoid valve body, 31-valve body, 32-valve core, 33-spring, 34-T oil return channel, 61-A advance port, 62-A oil drain port, 67-AB annular groove, 71-B lag port, 72-B oil drain port, 81-C1 control port, 82-C2 control port, 83-C1 oil drain port I, 84-C1 oil drain port II, 85-C2 oil drain port II, 86-C2 oil drain port I, 87-C1 annular groove, 88-C2 annular groove, 91-P1 pressure oil port, 92-P2 pressure oil port, 93-P pressure oil port
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.
Shown in the attached figures 1-5. An electromagnetic valve body 30 for a camshaft adjuster comprises a valve body 31, a valve core 32 axially arranged in a cavity of the valve body 31 and a spring 33 used for driving the valve core 32 to axially move along the cavity of the valve body 31, wherein the valve core 32 is hollow to form a T oil return channel 34, and a C1 control port 81, an A advance port 61, a B retard port 71 and a C2 control port 82 sequentially penetrate through the wall of the cavity of the valve body 31 in the radial direction along the axial direction; the C1 and C2 control ports 81 and 82 correspond to P1 and P2 pressure oil ports 91 and 92 arranged on the inner wall of the cavity of the valve body 31 respectively, and the P1 and P2 pressure oil ports 91 and 92 are communicated and centrally provided with a P pressure oil port 93 radially penetrating through the wall of the cavity of the valve body 31; the outer wall of the valve core 32 sequentially penetrates through the T oil return channel 34 along the axial direction and the radial direction to form a C1 oil drain port I, a C1 oil drain port II, a C2 oil drain port II, a C1 oil drain port I, a C2 oil drain port II, a C2 oil drain port I, a C1 oil drain port II, a C2 oil drain port I, a C; c1, C2 and AB annular grooves 87, 88 and 67 are respectively arranged between the first oil drainage port and the second oil drainage port 83 and 84 of the C1, between the second oil drainage port and the second oil drainage port 86 and 85 of the C2 and between the oil drainage ports 62 and 72 of the A and the B. The C1 and C2 control ports 81 and 82 are externally communicable and communicate with the control oil passage. The advance port a 61 and the retard port B71 communicate with the advance oil passage and the retard oil passage, respectively.
The C1 and C2 control ports 81 and 82, the a advance port 61 and the B retard port 71 are all symmetric about the P pressure port 93. The C1 drain port I83 and the C2 drain port I86, the C1 drain port II 84 and the C2 drain port II 85, the C1 annular groove 87 and the C2 annular groove 88, the A drain port 62 and the B drain port 72 are all symmetrical about the AB annular groove 67. The A oil drainage ports 62 are at least two, and the A oil drainage ports 62 are communicated through annular grooves formed in the outer openings and used for increasing oil drainage speed. The number of the oil drainage ports 72 is at least two, and the oil drainage ports 72 are communicated by arranging annular grooves at outer ports and used for increasing oil drainage speed.
The valve core 32 has five positions in the cavity of the valve body 31. When the valve core 32 is at the first position of the cavity of the valve body 31, the P pressure oil port 93 is communicated with the B retarding port 71 through the AB annular groove 67, the A advancing port 61 is communicated with the T oil return channel 34 through the A oil drainage port 62, the C1 control port 81 is communicated with the T oil return channel 34 through the C1 oil drainage port one 83, at the moment, the retarding oil channel supplies oil, the advancing oil channel discharges oil, and the control oil channel discharges oil; in the second position, the P pressure oil port 93 is communicated with the B retarding port 71 through the AB annular groove 67, the A advancing port 61 is communicated with the T oil return channel 34 through the A oil drainage port 62, the P1 pressure oil port 91 is communicated with the C1 control port 81 through the C1 annular groove 87, and at the moment, the retarding oil channel supplies oil, the advancing oil channel discharges oil and the control oil channel supplies oil; in the third position, the P pressure oil port 93 is not communicated with the A advancing port 61 and the B retarding port 71 through the AB annular groove 67, the C1 and the C2 control ports 81 and 82 are respectively communicated with the T oil return channel 34 through the C1 and the C2 oil drainage ports II 84 and 85, and oil in the retarding oil channel and the advancing oil channel is kept and oil drainage of the oil channel is controlled; in the fourth position, the P pressure oil port 93 is communicated with the A advancing port 61 through the AB annular groove 67, the B retarding port 71 is communicated with the T oil return channel 34 through the B oil drainage port 72, the P2 pressure oil port 92 is communicated with the C2 control port 82 through the C2 annular groove 88, at the moment, the retarding oil channel drains oil, the advancing oil channel feeds oil, and the control oil channel feeds oil; in the fifth position, the P pressure port 93 is communicated with the a advance port 61 through the AB annular groove 67, the B retard port 71 is communicated with the T oil return passage 34 through the B drain port 72, and the C2 control port 82 is communicated with the T oil return passage 34 through the C2 drain port one 86, at which time the retard oil passage drains oil, the advance oil passage feeds oil, and the control oil passage drains oil.
In conclusion, the function of controlling oil supply or oil drainage in five positions can be performed on the advance oil passage, the retard oil passage and the control oil passage through the position change of the valve core in the valve body cavity.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (8)
1. An electromagnetic valve body (30) for a camshaft adjuster, which comprises a valve body (31), a valve core (32) axially arranged in a cavity of the valve body (31), and a spring (33) for driving the valve core (32) to axially move along the cavity of the valve body (31), wherein the valve core (32) is hollow to form a T oil return channel (34), and is characterized in that a C1 control port (81), an A advance port (61), a B retard port (71) and a C2 control port (82) sequentially and radially penetrate through the wall of the cavity of the valve body (31) along the axial direction; the C1 and C2 control ports (81 and 82) are respectively corresponding to P1 and P2 pressure oil ports (91 and 92) arranged on the inner wall of a cavity of the valve body (31), and the P1 and P2 pressure oil ports (91 and 92) are communicated and centrally provided with a P pressure oil port (93) radially penetrating through the wall of the cavity of the valve body (31); the outer wall of the valve core (32) sequentially penetrates through a T oil return channel (34) along the axial direction in the radial direction and is provided with C1 oil drain ports I and II (83, 84), A and B oil drain ports (62, 72), and C2 oil drain ports II and I (85, 86); c1, C2 and AB annular grooves (87, 88 and 67) are respectively arranged between the first oil drainage port and the second oil drainage port (83 and 84) of the C1, between the second oil drainage port (86 and 85) of the C2 and between the oil drainage ports A and B (62 and 72).
2. A solenoid valve body (30) for a camshaft adjuster according to claim 1, characterized in that the C1, C2 control ports (81, 82) are externally conductive.
3. The solenoid valve body (30) of claim 1 wherein the C1 and C2 control ports (81, 82), the a advance port (61), and the B retard port (71) are all symmetric about the P pressure port (93).
4. A solenoid valve body (30) for a camshaft adjuster according to claim 1 wherein the C1 drain port one (83) and C2 drain port one (86), C1 drain port two (84) and C2 drain port two (85), C1 annular groove (87) and C2 annular groove (88), a drain port (62) and B drain port (72) are all symmetrical about the AB annular groove (67).
5. A solenoid valve body (30) for a camshaft adjuster according to claim 1, characterized in that the valve spool (32) has five positions in the cavity of the valve body (31).
6. A solenoid valve body (30) for a camshaft adjuster according to claim 5, wherein when the spool (32) is in the first position of the cavity of the valve body (31), the P pressure port (93) communicates with the B retard port (71) through the AB annular groove (67), the A advance port (61) communicates with the T scavenge port (34) through the A scavenge port (62), and the C1 control port (81) communicates with the T scavenge port (34) through the C1 scavenge port one (83); in the second position, the P pressure oil port (93) is communicated with the B lagging port (71) through an AB annular groove (67), the A advancing port (61) is communicated with the T oil return channel (34) through an A oil drainage port (62), and the P1 pressure oil port (91) is communicated with the C1 control port (81) through a C1 annular groove (87); in the third position, the P pressure oil port (93) is not communicated with the A advancing port (61) and the B lagging port (71) through the AB annular groove (67), and the C1 and the C2 control ports (81 and 82) are respectively communicated with the T oil return channel (34) through C1 and C2 oil drainage ports II (84 and 85); in the fourth position, a P pressure oil port (93) is communicated with an A advancing port (61) through an AB annular groove (67), a B retarding port (71) is communicated with a T oil return passage (34) through a B oil drainage port (72), and a P2 pressure oil port (92) is communicated with a C2 control port (82) through a C2 annular groove (88); in the fifth position, the P pressure oil port (93) is communicated with the A advancing port (61) through the AB annular groove (67), the B retarding port (71) is communicated with the T oil return passage (34) through the B oil drainage port (72), and the C2 control port (82) is communicated with the T oil return passage (34) through the C2 oil drainage port I (86).
7. A solenoid valve body (30) for a camshaft adjuster according to one of claims 1 to 6, characterized in that the A drain openings (62) are at least two, the A drain openings (62) communicating by being provided with an annular groove at the outer opening for increasing the drain speed.
8. The solenoid valve body (30) for a camshaft adjuster as claimed in claim 7, characterized in that the B drain openings (72) are at least two, the B drain openings (72) communicating by providing an annular groove at the outer opening for increasing the drain speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107811.XU CN209818127U (en) | 2019-01-23 | 2019-01-23 | Electromagnetic valve body for camshaft adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107811.XU CN209818127U (en) | 2019-01-23 | 2019-01-23 | Electromagnetic valve body for camshaft adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818127U true CN209818127U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920107811.XU Expired - Fee Related CN209818127U (en) | 2019-01-23 | 2019-01-23 | Electromagnetic valve body for camshaft adjuster |
Country Status (1)
| Country | Link |
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| CN (1) | CN209818127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120030A (en) * | 2019-12-30 | 2020-05-08 | 杰锋汽车动力系统股份有限公司 | Hydraulic valve for adjusting camshaft phaser |
| CN114165494A (en) * | 2021-11-02 | 2022-03-11 | 绵阳富临精工股份有限公司 | Continuous pressure adjustable electromagnetic valve |
-
2019
- 2019-01-23 CN CN201920107811.XU patent/CN209818127U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120030A (en) * | 2019-12-30 | 2020-05-08 | 杰锋汽车动力系统股份有限公司 | Hydraulic valve for adjusting camshaft phaser |
| CN111120030B (en) * | 2019-12-30 | 2021-11-02 | 杰锋汽车动力系统股份有限公司 | Hydraulic valve for adjusting camshaft phaser |
| CN114165494A (en) * | 2021-11-02 | 2022-03-11 | 绵阳富临精工股份有限公司 | Continuous pressure adjustable electromagnetic valve |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |