CN206439080U - The camshaft-bearing cap of integrated check valve mounting structure and VVT oil circuits - Google Patents
The camshaft-bearing cap of integrated check valve mounting structure and VVT oil circuits Download PDFInfo
- Publication number
- CN206439080U CN206439080U CN201720066774.3U CN201720066774U CN206439080U CN 206439080 U CN206439080 U CN 206439080U CN 201720066774 U CN201720066774 U CN 201720066774U CN 206439080 U CN206439080 U CN 206439080U
- Authority
- CN
- China
- Prior art keywords
- hole
- bearing cap
- oil
- air inlet
- oil supplying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a kind of integrated check valve mounting structure and the camshaft-bearing cap of VVT oil circuits, including bearing cap body, the axis hole of air inlet side half and the axis hole of exhaust side half are symmetrically set with bearing cap body, air inlet side oil supplying hole and exhaust side oil supplying hole are offered on bearing cap body between the axis hole of air inlet side half and the axis hole of exhaust side half, the air inlet side oil supplying hole and exhaust side oil supplying hole are stepped hole, the large diameter hole of stepped hole as check valve mounting hole, oil pocket and hydraulic tappet oil supplying hole are further opened with bearing cap body lower sealing surface between the axis hole of air inlet side half and the axis hole of exhaust side half, the bottom of the oil pocket and air inlet side oil supplying hole, the bottom of exhaust side oil supplying hole and hydraulic tappet oil supplying hole are all connected.The utility model can make VVT oil channel structures simply compact, meet Engine Downsizing and densification requirement.
Description
Technical field
The utility model is related to the camshaft-bearing cap of engine, and in particular to a kind of integrated check valve mounting structure and
The camshaft-bearing cap of VVT oil circuits.
Background technology
Generally, engine cylinder cap oil circuit will be not only VVT（Variable Valve Timing, VVT）
Oil circuit fuel feeding, in addition it is also necessary to for camshaft journal lubrication and hydraulic tappet oil circuit fuel feeding, VVT oil circuits during in order to prevent that engine from shutting down
In machine oil flow backwards, it is ensured that oil mass in VVT oil circuits is sufficient when engine is again started up, and is typically provided with list in VVT oil circuits
To valve, the pressure limiting valve of the check valve and hydraulic tappet oil circuit is generally all fixed in cylinder head, and this is accomplished by having in cylinder head
Enough mounting arrangements spaces, require higher to air cylinder head structure, and cause the increase of cylinder head volume, do not meet engine small
The requirement of type and densification.
The content of the invention
The purpose of this utility model is to provide the camshaft-bearing cap of a kind of integrated check valve mounting structure and VVT oil circuits,
It can make VVT oil channel structures simply compact, meet Engine Downsizing and densification requirement.
The camshaft-bearing cap of integrated check valve mounting structure and VVT oil circuits described in the utility model, including bearing cap
Body, its upper surface is the upper sealing surface fitted with cylinder cover, and its lower surface is the lower sealing surface fitted with cylinder head,
The axis hole of air inlet side half and the axis hole of exhaust side half are symmetrically set with bearing cap body, in the axis hole of air inlet side half and exhaust side half
The air inlet side oil supplying hole and exhaust side for being through to upper sealing surface from lower sealing surface is offered on bearing cap body between axis hole to supply
Oilhole, the air inlet side oil supplying hole and exhaust side oil supplying hole are stepped hole, the large diameter hole of stepped hole as check valve peace
Fill and be further opened with oil pocket and hydraulic pressure in hole, the bearing cap body lower sealing surface between the axis hole of air inlet side half and the axis hole of exhaust side half
Bottom, the bottom of exhaust side oil supplying hole and the hydraulic tappet oil supplying hole of tappet oil supplying hole, the oil pocket and air inlet side oil supplying hole all connect
It is logical.
Further, the hydraulic tappet oil supplying hole is strip hole.
Further, in air inlet side oil supplying hole, exhaust side oil supplying hole, oil pocket and the bearing cap sheet of hydraulic tappet oil supplying hole periphery
The annular groove for mounting O-shaped sealing ring is offered in body lower sealing surface.
When bearing cap body is with cylinder head and cylinder cover assembling, upper sealing surface and the cylinder cover of bearing cap body fit,
The lower sealing surface of bearing cap body fits with cylinder head, in order to ensure good sealing, the upper sealing surface of bearing cap body
Sealed between the sealing surface of cylinder cover by sealing gasket, the lower sealing surface of bearing cap body and the sealing surface of cylinder head by
O-ring seal is loaded in annular groove and realizes sealing, the bearing cap body passes through bolt through-hole bolt with cylinder head and cylinder cover
It is fixed together.The first oil on air inlet side VVT oil circuits, bearing cap body in the air inlet side oil supplying hole, cylinder cover
Hole and the first oil groove collectively constitute exhaust side VVT oil circuits, axle in air inlet side VVT oil circuits, the exhaust side oil supplying hole, cylinder cover
The second oilhole and the second oil groove held on lid body collectively constitutes exhaust side VVT oil circuits.
Having the beneficial effect that produced by the utility model：By the installation knot that integrated check valve is covered in camshaft bearing
Structure, makes check valve be arranged in the form of being embedded to camshaft-bearing cap, shortens oil circuit, beneficial to the timely of VVT oil piping systems response
Property；Oil supplying hole in camshaft-bearing cap towards hydraulic tappet oil circuit is strip hole, can limit the fuel feeding of hydraulic tappet oil circuit
Flow, and increase the oil pressure of hydraulic tappet oil circuit, play a part of pressure limiting valve, without arranging hydraulic tappet again in cylinder head
Pressure limiting valve, therefore said structure simplifies the structure of Primordial Qi cylinder cap, makes the volume-diminished of cylinder head, the manufacture difficulty of cylinder head
Corresponding reduction, meets Engine Downsizing and densification requirement.
Brief description of the drawings
Fig. 1 is shaft side figure of the present utility model.
Fig. 2 is the shaft side figure at another visual angle of the utility model.
Fig. 3 is the utility model and the profile after cylinder head and cylinder cover assembling.
In figure：1-O-ring seal, 2-check valve, 3-intake-side camshaft, 4-cylinder cover, 5-sealing gasket, 6-axle
Hold lid body, 61-bolt through-hole, 62-the first oilholes, the axis hole of 63-air inlet side half, 64-the first oil grooves, 65-hydraulic tappet
Oil supplying hole, 66-boss, 67-chain guide mounting hole, 68-the second oil grooves, the axis hole of 69-exhaust side half, 610-the second oil
Hole, 611-exhaust side oil supplying hole, 612-oil pocket, 613-air inlet side oil supplying hole, 614-annular groove, 615-ribs, 616-
Positioning hole, 7-exhaust side camshaft, 8-cylinder head, 81-cylinder head oil duct.
Embodiment
The utility model will be further described below in conjunction with the accompanying drawings.
Referring to a kind of integrated check valve mounting structure and the camshaft-bearing cap of VVT oil circuits shown in Fig. 1 and Fig. 2, including
Bearing cap body 6, its upper surface is the upper sealing surface fitted with cylinder cover 4, and its lower surface is to be fitted down with cylinder head 8
Sealing surface, for the ease of bearing cap body 6 is linked together with cylinder head 8 and cylinder cover 4, at the middle part of bearing cap body 6 and
Two ends all offer bolt through-hole 61, and are provided with reinforcement on the bearing cap body 6 at four place positions of bolt through-hole 61,
Positioning hole 616 is offered in the middle part of upper sealing surface, is easy to cylinder cover 4 and the location and installation of bearing cap body 6.
The axis hole 63 of air inlet side half and the axis hole 69 of exhaust side half are symmetrically set with bearing cap body 6, in air inlet side
On the hole wall of half axis hole 63 it is axially disposed have all to offer in two the first parallel oil grooves 64, two the first oil grooves 64 pass to
First oilhole 62 of upper sealing surface；It is axially disposed on the hole wall of the axis hole 69 of exhaust side half to have two the second parallel oil grooves
68, the second oilhole 610 for passing to sealing surface is all offered in two the second oil grooves 68.In the axis hole 63 of air inlet side half and exhaust side
The He of air inlet side oil supplying hole 613 that upper sealing surface is through to from lower sealing surface is offered on bearing cap body 6 between half axis hole 69
Exhaust side oil supplying hole 611, the air inlet side oil supplying hole 613 and exhaust side oil supplying hole 611 are up-small and down-big stepped hole, step
The large diameter hole in hole is as the mounting hole of check valve 2, the bearing cap between the axis hole 63 of air inlet side half and the axis hole 69 of exhaust side half
Oil pocket 612 and hydraulic tappet oil supplying hole 65 are further opened with the lower sealing surface of body 6, under the oil pocket and air inlet side oil supplying hole 613
Portion, the bottom of exhaust side oil supplying hole 611 and hydraulic tappet oil supplying hole 65 are all connected.
In the present embodiment, in order to ensure the sealing of sealing surface between bearing cap body 6 and cylinder head 8, in air inlet side
Opened in half axis hole 63, the axis hole 69 of exhaust side half, oil pocket 612 and the lower sealing surface of bearing cap body 6 of the periphery of HLA oil circuits oil supplying hole 65
Provided with the annular groove 614 for mounting O-shaped sealing ring 1.
As a preferred scheme of the present embodiment, the hydraulic tappet oil supplying hole 65 is strip hole, can limit hydraulic pressure
The flow of tappet oil circuit, and increase the oil pressure of hydraulic tappet oil circuit, play a part of pressure limiting valve.
And the side of bearing cap body 6 between the axis hole 63 of air inlet side half and the axis hole 69 of exhaust side half is provided with boss 66,
Two chain guide mounting holes 67 are offered on the boss, timing chain guide rail is easily installed.And in boss 66 and bearing cap sheet
Four ribs 615 are provided between body 6, boss 66 is reinforced.
When bearing cap body 6 and cylinder head 8 and the assembling of cylinder cover 4, as shown in figure 3, the upper sealing surface of bearing cap body 6 with
Cylinder cover 4 fits, and lower sealing surface and the cylinder head 8 of bearing cap body 6 fit, in order to ensure good sealing, bearing
Sealed between the upper sealing surface of lid body 6 and the sealing surface of cylinder cover 4 by sealing gasket 5, the lower sealing surface of bearing cap body 6 with
The sealing surface of cylinder head 8 realizes sealing, the bearing cap body 6 and cylinder head 8 by loading O-ring seal 1 in annular groove 614
It is fixed together with cylinder cover 4 by bolt through-hole 61 with bolt.Entering in the air inlet side oil supplying hole 613, cylinder cover 4
Gas side VVT oil circuits（Do not marked in figure）, the first oilhole 62 on bearing cap body 6 and the first oil groove 64 collectively constitute air inlet side
Exhaust side VVT oil circuits in VVT oil circuits, the exhaust side oil supplying hole 611, cylinder cover 4（Do not marked in figure）, bearing cap body 6
On the second oilhole 610 and the second oil groove 68 collectively constitute exhaust side VVT oil circuits.
The oil supply gallery that this camshaft-bearing cap is provided is as follows：Machine oil enters axle from the cylinder head oil duct 81 in cylinder head 8
Hold the machine oil in the oil pocket 612 of lid body 6, oil pocket 612 and be divided into three routes and respectively enter hydraulic tappet oil supplying hole 65, air inlet side
Machine oil in oil supplying hole 613 and exhaust side oil supplying hole 611, air inlet side oil supplying hole 613 sequentially passes through check valve 2, in cylinder cover 4
The first oilhole 62 and the first oil groove 64 on air inlet side VVT oil circuits, bearing cap body 6, are finally entered in intake-side camshaft 3,
Good lubrication and operating conditions are provided for the axle journal of intake-side camshaft 3, similarly, the machine oil in exhaust side oil supplying hole 611 is successively
By the exhaust side VVT oil circuits in check valve 2, cylinder cover 4, the second oilhole 610 on bearing cap body 6, the second oil groove 68, most
Enter afterwards in exhaust side camshaft 7, good lubrication and operating conditions are provided for the axle journal of exhaust side camshaft 7.
Claims (3)
1. the camshaft-bearing cap of integrated check valve mounting structure and VVT oil circuits, including bearing cap body（6）, its upper surface is
The upper sealing surface fitted with cylinder cover, its lower surface is the lower sealing surface fitted with cylinder head, left on bearing cap body
The right side is symmetrically arranged with the axis hole of air inlet side half（63）With the axis hole of exhaust side half（69）, the axis hole of air inlet side half and the axis hole of exhaust side half it
Between bearing cap body on offer the air inlet side oil supplying hole that upper sealing surface is through to from lower sealing surface（613）With exhaust side fuel feeding
Hole（611）, it is characterised in that：The air inlet side oil supplying hole and exhaust side oil supplying hole are stepped hole, the large diameter hole of stepped hole
As the mounting hole of check valve, also opened in the bearing cap body lower sealing surface between the axis hole of air inlet side half and the axis hole of exhaust side half
Provided with oil pocket（612）With hydraulic tappet oil supplying hole（65）, under the bottom of the oil pocket and air inlet side oil supplying hole, exhaust side oil supplying hole
Portion and hydraulic tappet oil supplying hole are all connected.
2. the camshaft-bearing cap of integrated check valve mounting structure according to claim 1 and VVT oil circuits, its feature exists
In：The hydraulic tappet oil supplying hole（65）For strip hole.
3. the camshaft-bearing cap of integrated check valve mounting structure according to claim 1 and VVT oil circuits, its feature exists
In：In air inlet side oil supplying hole（613）, exhaust side oil supplying hole（611）, oil pocket（612）And hydraulic tappet oil supplying hole（65）Periphery
The annular groove for mounting O-shaped sealing ring is offered in bearing cap body lower sealing surface（614）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066774.3U CN206439080U (en) | 2017-01-19 | 2017-01-19 | The camshaft-bearing cap of integrated check valve mounting structure and VVT oil circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066774.3U CN206439080U (en) | 2017-01-19 | 2017-01-19 | The camshaft-bearing cap of integrated check valve mounting structure and VVT oil circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206439080U true CN206439080U (en) | 2017-08-25 |
Family
ID=59635331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720066774.3U Active CN206439080U (en) | 2017-01-19 | 2017-01-19 | The camshaft-bearing cap of integrated check valve mounting structure and VVT oil circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206439080U (en) |
-
2017
- 2017-01-19 CN CN201720066774.3U patent/CN206439080U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103328798B (en) | There is the cylinder head cover module of integrated valve train | |
| CN203097995U (en) | Cylinder cover oil way integration structure for micro-automobile engine | |
| CN103228924B (en) | Be integrated into the turbosupercharger in the cylinder head of motor | |
| CN204060856U (en) | PCV system | |
| CN110159449B (en) | Gasoline supercharged engine cylinder head cover, gasoline supercharged engine and automobile | |
| CN106414984B (en) | Booster-type internal combustion engine | |
| CN1924308A (en) | Engine crankshaft ventilation system | |
| CN102425464B (en) | First bearing cover of engine cylinder cover | |
| CN103775166B (en) | The oil channel structures of electromotor | |
| CN206439080U (en) | The camshaft-bearing cap of integrated check valve mounting structure and VVT oil circuits | |
| CN103016189B (en) | With oil circuit by the cylinder head assemblies filled in | |
| CN204591520U (en) | A kind of cyclinder head cover assembly and engine crankshaft ventilation system | |
| CN206309438U (en) | Engine cam shaft assembly | |
| FI126115B (en) | The gas exchange valve arrangement | |
| CN201546777U (en) | Novel engine VVT oil path structure | |
| CN107023417A (en) | A kind of type range extender engine structure | |
| CN104428499B (en) | Camshaft adjuster for internal combustion engine | |
| CN202531301U (en) | Engine chain wheel chamber shell, engine and car | |
| CN208252309U (en) | A kind of lubrication system in air compressor crankcase | |
| CN207332984U (en) | The valve cover of integrated crankcase ventilation system pipeline | |
| CN104712394B (en) | For the oil duct for oil supply | |
| CN206988496U (en) | A kind of air compressor minimum pressure valve | |
| CN205779252U (en) | A kind of Multi-functional V-shaped power all-in-one | |
| CN207554214U (en) | It is integrated with the front cover shell of main oil gallery | |
| CN103758653B (en) | Diesel engine cylinder cover for high-speed ship |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |