CN204610054U - A kind of two VVT lubrication oil path for cylinder cover of engine - Google Patents
A kind of two VVT lubrication oil path for cylinder cover of engine Download PDFInfo
- Publication number
- CN204610054U CN204610054U CN201520160217.9U CN201520160217U CN204610054U CN 204610054 U CN204610054 U CN 204610054U CN 201520160217 U CN201520160217 U CN 201520160217U CN 204610054 U CN204610054 U CN 204610054U
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- oil circuit
- solenoid valve
- oil
- exhaust
- vvt
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Abstract
The utility model relates to a kind of two VVT lubrication oil path for cylinder cover of engine, and described lubricating oil path is made up of the first working connection, the second working connection, air inlet VVT solenoid valve oil circuit, exhaust VVT solenoid valve oil circuit, admission cam shaft oil circuit and exhaust cam shaft oil circuit.The first described working connection is divided into two oil circuits in cylinder head, and a road is air inlet VVT solenoid valve oil circuit, and another road is exhaust VVT solenoid valve oil circuit.The second described working connection is divided into two oil circuits in cylinder head, and a road is admission cam shaft oil circuit and air inlet side hydraulic tappet oil feeding line, and another road is exhaust cam shaft oil circuit and exhaust side hydraulic tappet oil feeding line.Both can ensure the speed of response of two VVT device after adopting such scheme, and not affect again the lubricating function of cylinder head, and lubricating oil path is simple and easy to processing.
Description
Technical field
The utility model relates to a kind of lubricating oil way of automobile engine placement technique, is specially the layout of two VVT lubrication oil path for cylinder cover of engine.
Background technique
Along with the development of the increasingly strict of automotive regulation and engine technology.Two VVT (inlet and exhaust valve timing is simultaneously variable) device obtains general application, and its main purpose is the power performance and the fuel economy that improve motor.
The driving mode of VVT device mainly contains spiral, hydraulic drive type and motor-driven etc., and wherein hydraulic drive type accounts for dominant position.Hydraulic drive type drives VVT device by electromagnetic valve engine high pressure lubricant oil, so extreme pressure lubricant must be had in oil circuit to be communicated with the solenoid valve of VVT device.VVT device and solenoid valve are normally arranged on cylinder and cover, so VVT solenoid valve oil circuit is arranged in cylinder head.
Accompanying drawing 1 is that the oil circuit of prior art arranges schematic diagram.In the construction shown in fig. 1, working connection 2 ' one end is connected with the high-pressure oil passage of cylinder block, the other end is divided into two oil circuits in cylinder head 1 ', one tunnel is VVT solenoid valve oil circuit 3 ', be communicated with the VVT solenoid valve being arranged in VVT solenoid valve mounting hole 4 ', another road is the special oil circuit 5 ' of lubrication, is communicated with camshaft bearing, and limit whelk plug 6 ' is for limiting the oil mass of leading to the special oil circuit of lubrication.VVT solenoid valve oil circuit shares a working connection with the special oil circuit of lubrication and causes both mutually to disturb, and affects the speed of response of VVT device.
Summary of the invention
The purpose of this utility model is for solving the problem that in prior art, two speed of response of VVT device and the lubricating function of cylinder head are disturbed mutually, provide a kind of two VVT lubrication oil path for cylinder cover of engine, both ensure that the speed of response of two VVT device, do not affect again the lubricating function of cylinder head.
A kind of two VVT lubrication oil path for cylinder cover of engine, described lubricating oil path is arranged in engine cylinder cap, it is characterized in that, described lubricating oil path is made up of the first working connection, the second working connection, air inlet VVT solenoid valve oil circuit, exhaust VVT solenoid valve oil circuit, admission cam shaft oil circuit and exhaust cam shaft oil circuit; First described working connection one end is connected with the high-pressure oil passage of cylinder block, and the other end is divided into two oil circuits in cylinder head, and a road is air inlet VVT solenoid valve oil circuit, is communicated with air inlet VVT solenoid valve, and another road is exhaust VVT solenoid valve oil circuit, is communicated with exhaust VVT solenoid valve; Second described working connection one end is connected with the high-pressure oil passage of cylinder block, the other end is divided into two oil circuits in cylinder head, one tunnel is admission cam shaft oil circuit and air inlet side hydraulic tappet oil feeding line, be communicated with intake cam axle bearing and air inlet side hydraulic tappet, another road is exhaust cam shaft oil circuit and exhaust side hydraulic tappet oil feeding line, is communicated with exhaust cam axle bearing and exhaust side hydraulic tappet.Described lubricating oil path, is characterized in that, in described first working connection and the second working connection, a safety check is respectively housed.Described lubricating oil path, is characterized in that, the port of described air inlet VVT solenoid valve oil circuit, exhaust VVT solenoid valve oil circuit, admission cam shaft oil circuit and exhaust cam shaft oil circuit blocks with steel ball respectively.
The port of described air inlet VVT solenoid valve oil circuit, exhaust VVT solenoid valve oil circuit, admission cam shaft oil circuit and exhaust cam shafting oil is respectively with steel ball blocking, and this structural manufacturing process is simple, and cost of production is low.The utility model both can ensure the speed of response of two VVT device, did not affect again the lubricating function of cylinder head, and lubricating oil path is simple and easy to processing.
Accompanying drawing explanation
Fig. 1 is that the lubrication oil path for cylinder cover of engine of prior art arranges schematic diagram;
Fig. 2 is the structural representation of this lubrication oil path for cylinder cover of engine layout in cylinder head;
Fig. 3 is safety check scheme of installation;
Fig. 4 is steel ball scheme of installation.
In Fig. 1: 1 '-prior art cylinder head, 2 '-working connection, 3 '-VVT solenoid valve oil circuit, 4 '-VVT solenoid valve mounting hole, 5 '-lubricate special oil circuit, 6 '-limit whelk plug.
In Fig. 2: 1-cylinder head, 2-first working connection, 3-air inlet VVT solenoid valve oil circuit, 4-are vented VVT solenoid valve oil circuit, 5-second working connection, 6-admission cam shaft oil circuit, 7-exhaust cam shaft oil circuit, 8-safety check, 9-steel ball, 10-air inlet VVT solenoid valve mounting hole, 11-exhaust VVT solenoid valve mounting hole, 12-steel ball mounting hole, 13-safety check mounting hole.
Embodiment
Below in conjunction with specific embodiment, further the utility model is set forth, should be understood that and quote embodiment only for illustration of the utility model, and be not used in restriction scope of the present utility model.
The technical solution adopted in the utility model is, a kind of two VVT lubrication oil path for cylinder cover of engine, described lubricating oil path is arranged in engine cylinder cap, and described lubricating oil path is made up of the first working connection 2, second working connection 5, air inlet VVT solenoid valve oil circuit, exhaust VVT solenoid valve oil circuit, admission cam shaft oil circuit and exhaust cam shaft oil circuit.First described working connection 2 one end is connected with the high-pressure oil passage of cylinder block, the other end is divided into two oil circuits in cylinder head, and a road is air inlet VVT solenoid valve oil circuit, is communicated with air inlet VVT solenoid valve, another road is exhaust VVT solenoid valve oil circuit, is communicated with exhaust VVT solenoid valve.Second described working connection 5 one end is connected with the high-pressure oil passage of cylinder block, the other end is divided into two oil circuits in cylinder head, one tunnel is admission cam shaft oil circuit and air inlet side hydraulic tappet oil feeding line, be communicated with intake cam axle bearing and air inlet side hydraulic tappet, another road is exhaust cam shaft oil circuit and exhaust side hydraulic tappet oil feeding line, is communicated with exhaust cam axle bearing and exhaust side hydraulic tappet.VVT solenoid valve oil circuit and camshaft lubrication oil circuit separate, to ensure that VVT device speed of response and lubrication do not interfere with each other by described lubricating oil path.In addition, in the first working connection 2 and the second working connection 5, a safety check is respectively housed, to prevent the lubricant oil in cylinder cap from all refluxing, during guarantee engine start, in VVT solenoid valve oil circuit and hydraulic tappet oil circuit, has a certain amount of lubricant oil.
In the structure shown in Fig. 2, extreme pressure lubricant enters cylinder head 1 from cylinder block, enters the first working connection 2 and the second working connection 5 respectively.First working connection 2 is divided into two oil circuits again, and a road is air inlet VVT solenoid valve oil circuit 3, connects air inlet VVT solenoid valve mounting hole 10; Another road is exhaust VVT solenoid valve oil circuit 4, connects exhaust VVT solenoid valve mounting hole 11.Second working connection 5 is equally also divided into two oil circuits, and a road is admission cam shaft oil circuit 6, lubricates and to air inlet side hydraulic tappet fuel feeding to friction pairs such as intake cam bearings; Another road is exhaust cam shaft oil circuit 7, carries out lubrication and supply and exhaust side hydraulic tappet fuel feeding to friction pairs such as exhaust cam bearings.In addition, in the first working connection 2 and the second working connection 5, a safety check 8 is respectively housed, prevent the oil return in cylinder cap, a certain amount of lubricant oil is had in VVT solenoid valve oil circuit and hydraulic tappet oil circuit during guarantee engine start, safety check installation diagram is shown in Fig. 3, and in Fig. 3, safety check 8 is fitted in the safety check mounting hole 13 in cylinder head 1.The port steel ball 9 of each lubricating oil path blocks, and in Fig. 4, steel ball 9 is fitted in the steel ball mounting hole 12 in cylinder head 1, and blocking lubricating oil path, this structural manufacturing process is simple, and cost of production is low.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (3)
1. a two VVT lubrication oil path for cylinder cover of engine, described lubricating oil path is arranged in engine cylinder cap, it is characterized in that, described lubricating oil path is made up of the first working connection (2), the second working connection (5), air inlet VVT solenoid valve oil circuit (3), exhaust VVT solenoid valve oil circuit (4), admission cam shaft oil circuit (6) and exhaust cam shaft oil circuit (7); Described the first working connection (2) one end is connected with the high-pressure oil passage of cylinder block, the other end is divided into two oil circuits in cylinder head, and a road is air inlet VVT solenoid valve oil circuit (3), is communicated with air inlet VVT solenoid valve, another road is exhaust VVT solenoid valve oil circuit, is communicated with exhaust VVT solenoid valve;
Described the second working connection (5) one end is connected with the high-pressure oil passage of cylinder block, the other end is divided into two oil circuits in cylinder head, one tunnel is admission cam shaft oil circuit (6) and air inlet side hydraulic tappet oil feeding line, be communicated with intake cam axle bearing and air inlet side hydraulic tappet, another road is exhaust cam shaft oil circuit (7) and exhaust side hydraulic tappet oil feeding line, is communicated with exhaust cam axle bearing and exhaust side hydraulic tappet.
2. lubricating oil path according to claim 1, is characterized in that, in described first working connection (2) and the second working connection (5), a safety check is respectively housed.
3. lubricating oil path according to claim 1 and 2, it is characterized in that, the port of described air inlet VVT solenoid valve oil circuit (3), exhaust VVT solenoid valve oil circuit (4), admission cam shaft oil circuit (5) and exhaust cam shaft oil circuit (6) uses steel ball (9) to block respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160217.9U CN204610054U (en) | 2015-03-21 | 2015-03-21 | A kind of two VVT lubrication oil path for cylinder cover of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160217.9U CN204610054U (en) | 2015-03-21 | 2015-03-21 | A kind of two VVT lubrication oil path for cylinder cover of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610054U true CN204610054U (en) | 2015-09-02 |
Family
ID=53962627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520160217.9U Expired - Fee Related CN204610054U (en) | 2015-03-21 | 2015-03-21 | A kind of two VVT lubrication oil path for cylinder cover of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610054U (en) |
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2015
- 2015-03-21 CN CN201520160217.9U patent/CN204610054U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160321 |