CN103670559A - Direct injection engine cam shaft bearing cap - Google Patents
Direct injection engine cam shaft bearing cap Download PDFInfo
- Publication number
- CN103670559A CN103670559A CN201210360250.7A CN201210360250A CN103670559A CN 103670559 A CN103670559 A CN 103670559A CN 201210360250 A CN201210360250 A CN 201210360250A CN 103670559 A CN103670559 A CN 103670559A
- Authority
- CN
- China
- Prior art keywords
- bearing cap
- cap body
- cylinder head
- oil pump
- pressure oil
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007924 injection Substances 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 239000003292 glue Substances 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
Images
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention relates to a direct injection engine cam shaft bearing cap which comprises a bearing cap body. An upper arc sealing face, a lower sealing face and a rear sealing face are arranged on the bearing cap body, wherein the upper arc sealing face can be attached to an air cylinder head cover above the bearing cap body, the lower sealing face can be attached to an air cylinder head below the bearing cap body, the rear sealing face can be attached to a high-pressure oil pump base behind the bearing cap body, and an arc concave face matched with a cam shaft neck is arranged on the lower sealing face. First installing holes in the vertical direction and second installing holes in the front-back direction are formed in the left side and the right side of the bearing cap body respectively, and ventilation holes are formed in the rear sealing face of the bearing cap body. When a high-pressure oil pump is arranged at the rear end of the cylinder head, the cam shaft bearing cap ensures that the seal between the high-pressure oil pump base and the air cylinder head, the cam shaft and the air cylinder head cover is reliable, and the pressure between an inner cavity of the high-pressure oil pump base and the interior of an air cylinder head system is balanced.
Description
Technical field
The present invention relates to a kind of engine part, be specifically related to a kind of direct fuel-injection engine camshaft-bearing cap.
Background technique
High pressure oil pump on vehicular engine is normally arranged in the inlet end of cylinder head, reciprocating by the driving cam driving oil pump tappet of high pressure oil pump, to be continuously engine fuel injector, provides high pressure fuel.But owing to being subject to the spatial constraints of engine compartment, need high pressure oil pump to be arranged in the rear end of cylinder head.If high pressure oil pump is arranged in to the rear end of cylinder head, just wish to guarantee being tightly connected between high pressure oil pump base and cylinder head, camshaft, valve mechanism cover by camshaft-bearing cap, make the pressure balance of high pressure oil pump base intracavity and cylinder head internal system.But the camshaft-bearing cap on existing vehicular engine is normally assemblied in cylinder head, only for camshaft being played to radially position-limiting action, cannot guarantee being tightly connected between high pressure oil pump base and cylinder cap, camshaft, valve mechanism cover.
Summary of the invention
The object of this invention is to provide a kind of direct fuel-injection engine camshaft-bearing cap, when high pressure oil pump is arranged in the rear end of cylinder cap, by this camshaft-bearing cap, can guarantee the reliable sealing between high pressure oil pump base and cylinder head, camshaft, valve mechanism cover, make the pressure balance of high pressure oil pump base intracavity and cylinder head internal system.
Direct fuel-injection engine camshaft-bearing cap of the present invention, comprise bearing cap body, on bearing cap body, have sealing surface on the arc that can fit with the valve mechanism cover of its top, the lower sealing surface that can fit with the cylinder head of its below and the rear sealing surface that can fit with the high pressure oil pump base at its rear, lower sealing surface is provided with the arc-shaped concave suitable with camshaft bearing journal; The left and right sides of described bearing cap body offers the first mounting hole along the vertical direction and along the second mounting hole of fore-and-aft direction, on the rear sealing surface of bearing cap body, offers vent.
In the lower sealing surface of bearing cap body, along fore-and-aft direction, offer two every glue groove, two left and right sides and close these arc-shaped concaves that lay respectively at described arc-shaped concave every glue groove.
By the first mounting hole on bearing cap body, with bolt, this bearing cap and cylinder head are fixed, by the second mounting hole on bearing cap body, with bolt, this bearing cap and high pressure oil pump base are fixed, simultaneously, rear sealing surface and the high pressure oil pump base of bearing cap seal by sealing gasket, upper sealing surface and the valve mechanism cover of bearing cap seal by cylinder head cover sealing gasket, the lower sealing surface of bearing cap and cylinder head be by sealant sealing, thereby realize the reliable sealing between high pressure oil pump base and cylinder head, camshaft, valve mechanism cover.
The effect of vent is by high pressure oil pump base intracavity and cylinder head internal communication.
Effect every glue groove is that the sealer of avoiding unnecessary flows on bearing cap arc-shaped concave and camshaft, hinders the motion of camshaft.
The upper sealing surface that direct fuel-injection engine camshaft-bearing cap of the present invention has the rear sealing surface coordinating with high pressure oil pump base, the lower sealing surface coordinating with cylinder head, the arc-shaped concave coordinating with camshaft and coordinates with valve mechanism cover, when high pressure oil pump is arranged in the rear end of cylinder cap, this camshaft-bearing cap not only plays radially position-limiting action to camshaft, can also guarantee being tightly connected between high pressure oil pump base and cylinder head, camshaft, valve mechanism cover, guarantee the pressure balance of high pressure oil pump base intracavity and cylinder head internal system.
Accompanying drawing explanation
Fig. 1 is the axonometric drawing of direct fuel-injection engine camshaft-bearing cap of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the rear view of Fig. 1;
Fig. 4 is the assembling schematic diagram of direct fuel-injection engine camshaft-bearing cap of the present invention and cylinder head, high pressure oil pump base, camshaft and valve mechanism cover.
Embodiment
Now by reference to the accompanying drawings the present invention is described in further detail:
Direct fuel-injection engine camshaft-bearing cap as shown in Figure 1 to Figure 3, comprise bearing cap body, on bearing cap body, have sealing surface 1.3 on the arc that can fit with the valve mechanism cover 2 of its top, the lower sealing surface 1.6 that can fit with the cylinder head 5 of its below and the rear sealing surface 1.5 that can fit with the high pressure oil pump base 3 at its rear, lower sealing surface 1.6 is provided with the arc-shaped concave 1.7 suitable with camshaft 4 axle journals; The left and right sides of described bearing cap body offers the first mounting hole 1.2 along the vertical direction and along the second mounting hole 1.1 of fore-and-aft direction.
As shown in Figures 2 and 3, on the rear sealing surface 1.5 of bearing cap body, offer vent 1.4, vent 1.4 is communicated with the inner chamber of described cylinder head 5 with the inner chamber of high pressure oil pump base 3.Vent 1.4 keeps balance for guaranteeing the air pressure of high pressure oil pump base 3 inner chambers and cylinder head 5 inner chambers, the interior unnecessary air of high pressure oil pump base 3 can flow in cylinder head 5 by vent 1.4, by triton system flow, go out cylinder head 5 again, also can replenish air be entered in high pressure oil pump base 3 by vent 1.4, make air pressure inside reach balance, reduce the frequency that sealing gasket damages.
As shown in Figures 2 and 3, in the lower sealing surface 1.6 of bearing cap body, along fore-and-aft direction, offer two every 1.8, two left and right sides and close these arc-shaped concaves 1.7 that lay respectively at described arc-shaped concave 1.7 every glue groove 1.8 of glue groove.Because the cooperation place of bearing cap 1 and cylinder head 5 need to apply sealer, seal, be fastenedly connected after bolt, sealer may flow on the arc-shaped concave 1.7 and camshaft 4 of bearing cap 1, hinders the motion of camshaft 4.Every glue groove 1.8, can avoid unnecessary sealer to flow on the arc-shaped concave 1.7 and camshaft 4 of bearing cap 1
As shown in Figure 4, by the first mounting hole 1.2 use bolts on bearing cap body, this bearing cap 1 is fixing with cylinder head 5, by the second mounting hole 1.1 use bolts on bearing cap body, this bearing cap 1 is fixing with high pressure oil pump base 3, simultaneously, rear sealing surface 1.5 and the high pressure oil pump base 3 of bearing cap 1 seal by sealing gasket, upper sealing surface 1.3 and the valve mechanism cover 2 of bearing cap 1 seal by cylinder head cover sealing gasket, and lower sealing surface 1.6 and the cylinder head 5 of bearing cap 1 are passed through sealant sealing.
Claims (2)
1. a direct fuel-injection engine camshaft-bearing cap, comprise bearing cap body, it is characterized in that: on bearing cap body, have sealing surface (1.3) on the arc that can fit with the valve mechanism cover (2) of its top, the lower sealing surface (1.6) that can fit with the cylinder head (5) of its below and the rear sealing surface (1.5) that can fit with the high pressure oil pump base (3) at its rear, lower sealing surface is provided with the arc-shaped concave (1.7) suitable with camshaft (4) axle journal; The left and right sides of described bearing cap body offers the first mounting hole (1.2) along the vertical direction and along second mounting hole (1.1) of fore-and-aft direction, on the rear sealing surface (1.5) of bearing cap body, offers vent (1.4).
2. direct fuel-injection engine camshaft-bearing cap according to claim 1, it is characterized in that: the lower sealing surface (1.6) at bearing cap body above offers two every glue groove (1.8) along fore-and-aft direction two left and right sides and close these arc-shaped concaves that lay respectively at described arc-shaped concave (1.7) every glue groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360250.7A CN103670559B (en) | 2012-09-25 | 2012-09-25 | A kind of direct fuel-injection engine camshaft-bearing cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360250.7A CN103670559B (en) | 2012-09-25 | 2012-09-25 | A kind of direct fuel-injection engine camshaft-bearing cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103670559A true CN103670559A (en) | 2014-03-26 |
| CN103670559B CN103670559B (en) | 2016-11-16 |
Family
ID=50309236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210360250.7A Active CN103670559B (en) | 2012-09-25 | 2012-09-25 | A kind of direct fuel-injection engine camshaft-bearing cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103670559B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481626A (en) * | 2014-11-28 | 2015-04-01 | 长城汽车股份有限公司 | Valve mechanism for engine, engine with the same and vehicle |
| CN106224120A (en) * | 2016-09-13 | 2016-12-14 | 奇瑞汽车股份有限公司 | The sealing structure of valve chamber cover |
| WO2022082934A1 (en) * | 2020-10-21 | 2022-04-28 | 广西玉柴机器股份有限公司 | Cylinder head that enlarges structure of rubber storage tank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245912A (en) * | 1985-08-21 | 1987-02-27 | Honda Motor Co Ltd | Oil feeding device for hydraulic tappet of internal combustion engine |
| JPH0481506A (en) * | 1990-07-20 | 1992-03-16 | Toyota Motor Corp | Variable valve timing mechanism |
| CN101113697A (en) * | 2007-08-28 | 2008-01-30 | 奇瑞汽车有限公司 | Car engine camshaft bearing cap |
| CN101196127A (en) * | 2006-12-06 | 2008-06-11 | 奇瑞汽车有限公司 | Camshaft bearing cover of engine |
| CN101482044A (en) * | 2008-12-22 | 2009-07-15 | 奇瑞汽车股份有限公司 | Engine camshaft bearing cover |
-
2012
- 2012-09-25 CN CN201210360250.7A patent/CN103670559B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245912A (en) * | 1985-08-21 | 1987-02-27 | Honda Motor Co Ltd | Oil feeding device for hydraulic tappet of internal combustion engine |
| JPH0481506A (en) * | 1990-07-20 | 1992-03-16 | Toyota Motor Corp | Variable valve timing mechanism |
| CN101196127A (en) * | 2006-12-06 | 2008-06-11 | 奇瑞汽车有限公司 | Camshaft bearing cover of engine |
| CN101113697A (en) * | 2007-08-28 | 2008-01-30 | 奇瑞汽车有限公司 | Car engine camshaft bearing cap |
| CN101482044A (en) * | 2008-12-22 | 2009-07-15 | 奇瑞汽车股份有限公司 | Engine camshaft bearing cover |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481626A (en) * | 2014-11-28 | 2015-04-01 | 长城汽车股份有限公司 | Valve mechanism for engine, engine with the same and vehicle |
| CN104481626B (en) * | 2014-11-28 | 2017-04-19 | 长城汽车股份有限公司 | Valve mechanism for engine, engine with the same and vehicle |
| CN106224120A (en) * | 2016-09-13 | 2016-12-14 | 奇瑞汽车股份有限公司 | The sealing structure of valve chamber cover |
| WO2022082934A1 (en) * | 2020-10-21 | 2022-04-28 | 广西玉柴机器股份有限公司 | Cylinder head that enlarges structure of rubber storage tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103670559B (en) | 2016-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8375918B2 (en) | Lubricant supply device for auxiliary machine of engine | |
| US9283841B2 (en) | Fuel pump device for vehicle engines | |
| US20230322305A1 (en) | Off-road vehicle | |
| US10731601B2 (en) | Cylinder head cover structure for engine | |
| CN105715405B (en) | Integrated composite cam cap and bracket and method of assembly | |
| CN103670559A (en) | Direct injection engine cam shaft bearing cap | |
| US20140170002A1 (en) | Fuel pump | |
| US20090266326A1 (en) | Air intake assembly with integrated crankcase ventilation system | |
| CN102144096B (en) | High-pressure radial piston pump | |
| CN105756737A (en) | Engine valve mechanism | |
| US8166938B2 (en) | Engine camshaft cover with integrated oil passages for camshaft phaser actuation | |
| JP6291973B2 (en) | Fuel pump mounting structure | |
| CN104481621A (en) | Cam shaft bearing cover integrating OCV (Open Circuit Voltage) valve installation structure and VVT (Variable Valve Timing) oil circuit | |
| JP4073840B2 (en) | Air-fuel mixture supply device for direct injection internal combustion engine | |
| US8511282B2 (en) | Mounting structure of high pressure fuel pump for gasoline direct injection engine | |
| CN203879644U (en) | Cylinder head cover of diesel engine | |
| CN210829494U (en) | Internal combustion engine for vehicle | |
| CN207583450U (en) | A kind of high pressure oil pump seat of integrated camshaft bearing lid | |
| CN203296985U (en) | Fuel pump device for motor vehicle | |
| CN201284713Y (en) | Engine camshaft cover with high pressure oil pump support structure | |
| US8516803B2 (en) | Mechanical vacuum pump integrated with coupled secondary air injection valve | |
| CN102606252B (en) | Variable valve timing control system oil passage and timing cover for automobile engine | |
| JP4333648B2 (en) | Engine fuel piping structure | |
| JP2013177854A (en) | High pressure fuel delivery pipe assembly for direct injection engine | |
| CN203285601U (en) | Fuel manifold assembly mounting support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |