CN202851175U - Engine cylinder cover structure provided with one-way valve - Google Patents
Engine cylinder cover structure provided with one-way valve Download PDFInfo
- Publication number
- CN202851175U CN202851175U CN 201220526525 CN201220526525U CN202851175U CN 202851175 U CN202851175 U CN 202851175U CN 201220526525 CN201220526525 CN 201220526525 CN 201220526525 U CN201220526525 U CN 201220526525U CN 202851175 U CN202851175 U CN 202851175U
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- way valve
- oil duct
- oil
- cylinder cover
- engine
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- Expired - Lifetime
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses an engine cylinder cover structure provided with a one-way valve. The engine cylinder cover structure provided with the one-way valve comprises a cylinder cover main oil duct and is characterized in that the one-way valve used for preventing engine oil flowing back is arranged on the cylinder cover main oil duct. By enabling the one-way valve to be applied to a variable valve timing (VVT) oil duct, a variable valve lift (VVL) oil duct, a hydraulic tappet oil duct and the like, the engine cylinder cover structure can prevent the engine oil of the cylinder cover main oil duct of a stopped engine from flowing back due to external factors like gravity, when the engine is started again, the engine oil can quickly reach the VVT, the VVL, the hydraulic tappet and the like, response time is shortened, response speed is raised, meanwhile, timely lubrication of relative friction pairs such as cam shafts can be ensured, reliability of the engine is improved, and the engine cylinder cover structure provided with the one-way valve is simple in structure and strong in practicality.
Description
Technical field
The utility model relates to automobile technical field, refers to particularly it is a kind of engine cylinder cover structure that one-way valve is set in motor car engine.
Background technique
At present both at home and abroad the motor of exploitation adopts the VVT(Variable Valve Timing more), the VVL(lift range variable), the advanced technology such as hydraulic tappet; but during existing engine shutdown; the machine oil that is full of VVT, VVL and hydraulic tappet oil circuit refluxes; when motor starts again; machine oil need be transported in the oil circuit of VVT, VVL and hydraulic tappet again; VVT, VVL and hydraulic tappet can not in time be worked; therefore, need the interior machine oil of design a kind of VVT of making, VVL and hydraulic tappet can not cause because of shutdown the engine cylinder cover structure of machine oil backflow.
The model utility content
The purpose of this utility model is exactly the deficiency that will solve the above-mentioned background technology, and a kind of response time that guarantees VVT in the motor, VVL, hydraulic tappet etc. is provided, and improves the engine cylinder cover structure that one-way valve is set of its speed of response.
The technical solution of the utility model is: a kind of engine cylinder cover structure that one-way valve is set, and it comprises the cylinder cap main oil gallery, described cylinder cap main oil gallery is provided with to prevent the one-way valve of machine oil backflow.
The oil port of described cylinder cap main oil gallery is provided with shoulder hole, and interference is connected with one-way valve in the described shoulder hole.
One-way valve has the fluid of making and can only flow along filler opening; the device that the oil outlet medium but can't reflux; one-way valve is applied in VVT in the engine cylinder cover; VVL; in the oil ducts such as hydraulic tappet; motor after can preventing from shutting down; the machine oil of its cylinder cap main oil gallery can not reflux because of external factors such as gravity; when motor starts again; machine oil can reach rapidly VVT; VVL; hydraulic tappet etc.; shortened its response time; improve its speed of response; also can guarantee simultaneously the in time lubricated of the friction pair such as associated cams axle, improve engine reliability, be a kind of simple in structure and practical cylinder cover mechanism.
Description of drawings
Fig. 1 is the utility model overall structure schematic representation;
Fig. 2 is hydraulic tappet main oil gallery one-way valve layout cross-sectional schematic;
Fig. 3 is VVT main oil gallery place one-way valve layout cross-sectional schematic.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments, be convenient to be well understood to the present invention, but they do not consist of restriction to the present invention.
A kind of engine cylinder cover structure that one-way valve is set as shown in Figure 1, it comprises the cylinder cap main oil gallery, is provided with one-way valve at the cylinder cap main oil gallery, the cylinder cap main oil gallery comprises hydraulic tappet main oil gallery 2 and VVT main oil gallery 7, is specially:
As shown in Figure 2, hydraulic tappet main oil gallery 2 is arranged on the A place that engine cylinder covers, hydraulic tappet main oil gallery 2 upper ends are laterally connected the first horizontal oil duct 3, vertically connect respectively on the first horizontal oil duct 3 exhaust side hydraulic tappet oil duct 4 and the air inlet side hydraulic pressure oil duct 5 of holding out is arranged, the oil port of hydraulic tappet main oil gallery 2 is provided with the first shoulder hole 2-1, and interference is connected with the first one-way valve 1 in the first shoulder hole 2-1.When engine oil, machine oil first one-way valve 1 of flowing through is full of hydraulic tappet main oil gallery 2, and by the first horizontal oil duct 3, branch to exhaust side hydraulic tappet oil duct 4 and the air inlet side hydraulic pressure oil duct 5 of holding out, guarantee the lubricated of the work of hydraulic tappet and camshaft; When engine shutdown, the first one-way valve 1 stops the machine oil of hydraulic tappet main oil gallery 2 to be back to the below, and machine oil still is full of hydraulic tappet main oil gallery 2 and the first horizontal oil duct 3, and when motor starts again, hydraulic tappet will in time be worked.
As shown in Figure 3, VVT main oil gallery 7 is arranged on the B place that engine cylinder covers, VVT main oil gallery 7 upper end portions are laterally connected left laterally oil duct 9-1 and right laterally oil duct 9-2, left laterally oil duct 9-1 vertically connects a VVT solenoid valve oil duct 12, right laterally oil duct 9-2 vertically connects the 2nd VVT solenoid valve oil duct 11, oil port at VVT main oil gallery 7 is provided with the second shoulder hole 7-1, interference is connected with the second one-way valve 6 in the second shoulder hole 7-1, left laterally oil duct 9-1 is provided with the 3rd shoulder hole 9-4, interference is connected with the 3rd one-way valve 8 in the 3rd shoulder hole 9-4, right laterally oil duct 9-2 is provided with four-step hole 9-3, interference is connected with the 4th one-way valve 10, the second one-way valves 6 in the 9-3 of four-step hole, the direction of flow of the 3rd one-way valve 8 and the 4th one-way valve 10 is same direction.When engine oil, machine oil second one-way valve 6 of flowing through is by the horizontal oil duct 9-1 in a left side and right laterally oil duct 9-2, through the 3rd one-way valve 8 and the 4th one-way valve 10, branch to air inlet the one VVT solenoid valve oil duct 12 and the 2nd VVT solenoid valve oil duct 11, guarantee the work of VVT; When engine shutdown; the second one-way valve 6, the 3rd one-way valve 8, the 4th one-way valve 10 stop the machine oil of VVT main oil gallery 7, a VVT solenoid valve oil duct 12 and the 2nd VVT solenoid valve oil duct 11 to reflux; machine oil still is full of oil duct, and when motor starts again, VVT will in time work.
Present embodiment is by being applied in one-way valve in the engine cylinder cover in the VVT oil duct 7 and hydraulic tappet oil duct 2; the VVT oil duct 7 of the motor after can preventing from shutting down and the machine oil of hydraulic tappet oil duct 2 can not reflux because of external factors such as gravity; when motor starts again; machine oil can reach rapidly VVT and hydraulic tappet; shortened its response time; improving its speed of response, also can guarantee simultaneously the in time lubricated of the friction pair such as associated cams axle, is a kind of simple in structure and practical cylinder cover mechanism.
Claims (4)
1. engine cylinder cover structure that one-way valve is set, it comprises the cylinder cap main oil gallery, it is characterized in that: described cylinder cap main oil gallery is provided with the one-way valve that prevents that machine oil from refluxing.
2. a kind of engine cylinder cover structure that one-way valve is set according to claim 1, it is characterized in that: the oil port of described cylinder cap main oil gallery is provided with shoulder hole, and interference is connected with one-way valve in the described shoulder hole.
3. kind according to claim 1 and 2 arranges the engine cylinder cover structure of one-way valve, it is characterized in that: described cylinder cap main oil gallery is the hydraulic tappet main oil gallery, the upper end of hydraulic tappet main oil gallery is laterally connected the first horizontal oil duct, vertically connect respectively on the first horizontal oil duct exhaust side hydraulic tappet oil duct and the air inlet side hydraulic pressure oil duct of holding out is arranged, the oil port of hydraulic tappet main oil gallery is provided with the first shoulder hole, and interference is connected with the first one-way valve in the first shoulder hole.
4. kind according to claim 1 and 2 arranges the engine cylinder cover structure of one-way valve, it is characterized in that: described cylinder cap main oil gallery is the VVT main oil gallery, VVT main oil gallery upper end portion is laterally connected left laterally oil duct and right laterally oil duct, left laterally oil duct is vertically connected a VVT solenoid valve oil duct, right laterally oil duct is vertically connected the 2nd VVT solenoid valve oil duct, oil port at the VVT main oil gallery is provided with the second shoulder hole, interference is connected with the second one-way valve in the second shoulder hole, left laterally oil duct is provided with the 3rd shoulder hole, interference is connected with the 3rd one-way valve in the 3rd shoulder hole, right laterally oil duct is provided with the four-step hole, interference is connected with the 4th one-way valve in the four-step hole, the second one-way valve, the direction of flow of the 3rd one-way valve and the 4th one-way valve is same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526525 CN202851175U (en) | 2012-10-15 | 2012-10-15 | Engine cylinder cover structure provided with one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526525 CN202851175U (en) | 2012-10-15 | 2012-10-15 | Engine cylinder cover structure provided with one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851175U true CN202851175U (en) | 2013-04-03 |
Family
ID=47982383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220526525 Expired - Lifetime CN202851175U (en) | 2012-10-15 | 2012-10-15 | Engine cylinder cover structure provided with one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218098A (en) * | 2017-06-22 | 2017-09-29 | 中车大连机车车辆有限公司 | High-power diesel engine machine oil pre-lubrication method |
-
2012
- 2012-10-15 CN CN 201220526525 patent/CN202851175U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218098A (en) * | 2017-06-22 | 2017-09-29 | 中车大连机车车辆有限公司 | High-power diesel engine machine oil pre-lubrication method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |