CN105114200A - Device and method for connecting valve cover cap and oil injector - Google Patents
Device and method for connecting valve cover cap and oil injector Download PDFInfo
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- CN105114200A CN105114200A CN201510453764.0A CN201510453764A CN105114200A CN 105114200 A CN105114200 A CN 105114200A CN 201510453764 A CN201510453764 A CN 201510453764A CN 105114200 A CN105114200 A CN 105114200A
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- pressing plate
- oil sprayer
- valve cover
- coupling arrangement
- mounting platform
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- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a connecting device of a valve cover and an oil sprayer, which comprises a support ring, a pressing plate, a mounting hole, a thrust surface, a positioning boss, a mounting boss, a first pressing plate mounting step surface and a second pressing plate mounting step surface. The invention also discloses a method for connecting the valve cover cap and the oil injector, which comprises the following steps: 001. determining the diameter D0 of an oil seal on a valve cover according to the size of an electric connector and a high-pressure connector of an oil injector, and setting the diameter D1 of the outer edge of a cylindrical surface on a support ring to meet the requirements that D1 is larger than D0; 002. according to the diameter D of the matching part of the oil sprayer and the mounting hole, the inner hole diameter D2 of the mounting hole is determined, D2> D is met, and the gap between the oil sprayer and the mounting hole is guaranteed to be 0.05mm-2 mm. The connection method is effective and practical, the practicability is strong, the adopted connection device has simple structure, compact arrangement, convenient operation and good sealing performance.
Description
Technical field
The present invention relates to valve cover cap and oil sprayer connection technique field, be specially a kind of valve cover cap and oil sprayer coupling arrangement and joining method thereof.
Background technique
Along with the development of engine technology, the application of the technology such as Four valve, Dual Over Head Camshaft and electric controlled direct spray technology is more and more extensive, in addition injector body complex structure, out-of-shape, the layout of oil sprayer is become increasingly complex, for the motor of Four valve, Dual Over Head Camshaft, oil sprayer is installed does not exist biased tilt problem, all that vertical centering control is placed in cylinder axis, its key of arranging is to select rational oil sprayer to install supporting way and bulge quantity, and the layout pattern of current oil sprayer is divided into two kinds: built-in and external.For built-in oil sprayer, the oil inlet and oil return duct of oil sprayer is arranged in valve cover cap, and injector plate is arranged in outside valve cover cap, and the oil inlet and oil return hole of the oil sprayer of this structure must realize on cylinder cap, and cylinder cap design can more complicated.Normal employing external oil sprayer now, oil inlet and oil return mouth by oil sprayer is arranged on outside valve cover cap, injector plate can according to arrangement space choice arrangement in valve cover cap inside or outside, but Four valve position and between Dual Over Head Camshaft and oil injector body spatial joint clearance too small, valve cover cap and seal ring of fuel injector cannot be arranged, cause external oil cannot directly and valve cover cap seal.
Summary of the invention
The object of the invention is to provide a kind of valve cover cap and oil sprayer coupling arrangement and joining method thereof to overcome above-mentioned deficiency.
A kind of valve cover cap and oil sprayer coupling arrangement, comprise support ring, pressing plate and bolt, described support ring is provided with for providing the mounting hole of radial location to oil sprayer and for providing the thrust surface of axially locating to oil sprayer, the below of described mounting hole is provided with for realizing coupling arrangement and the circumferential positioning boss of locating of oil sprayer, two installation bases for construction bolt are provided with inside described support ring, described installation base is provided with the first pressing plate mounting platform terrace and the second pressing plate mounting platform terrace, described first pressing plate mounting platform terrace is positioned at the outside of installation base, described second pressing plate mounting platform terrace is positioned at the inner side of installation base, the height of described second pressing plate mounting platform terrace is lower than the first pressing plate mounting platform terrace, described support ring outer surface is circumferentially provided with cylndrical surface outer rim, the inwall of described mounting hole is circumferentially provided with a circle seal groove, seal ring is provided with in described seal groove, one end of described pressing plate is positioned on the first pressing plate mounting platform terrace, one end of described bolt is passed pressing plate and is arranged in installation base.The material of described seal ring adopts AEM rubber, and the compressibility of described seal ring is 10%-18%.
A kind of valve cover cap and oil sprayer joining method comprise the following steps: the diameter D0 001, covering oil sealing according to the electric connection of oil sprayer and high pressure joint physical dimension determination valve cover, support ring arranges the diameter D1 of cylndrical surface outer rim, meet D1>D0, ensure to coordinate with the oil sealing of valve cover cap, realize the sealing with valve cover cap, 002, according to the diameter D of oil sprayer and mounting hole cooperation place, determine the diameter of bore D2 of mounting hole, meet D2>D, ensure that the gap between oil sprayer and mounting hole is 0.05mm-2mm, seal ring is loaded in seal groove, support ring arranges installation base, installation base arranges the first pressing plate mounting platform terrace and the second pressing plate mounting platform terrace, the height of the second pressing plate mounting platform terrace is lower than the first pressing plate mounting platform terrace, be that guiding is arranged on after on oil sprayer with mounting hole by coupling arrangement, utilize the adaptivity of seal ring to realize coupling arrangement and be arranged on radial location on oil sprayer, 003, because valve cover covers the diameter D0 of oil sealing and the diameter D disalignment of oil sprayer cooperation place, there is eccentric distance e, bottom support ring 1, positioning boss is set, the width of positioning boss and oil sprayer cut flat with wide, when coupling arrangement is arranged on oil sprayer, rotary support ring, be adjusted to cutting of positioning boss and oil sprayer flat in the face of neat, the circumference realizing coupling arrangement and oil sprayer is located, 004, the shaft shoulder of oil sprayer and thrust surface are fitted, realize coupling arrangement and be arranged on axially locating on oil sprayer, 005, one end of pressing plate is placed on the first pressing plate mounting platform terrace, pass pressing plate centre with bolt and be arranged in installation base, first pressing plate mounting platform terrace is that pressing plate provides a supporting role, and after bolton, utilizes the other end of lever principle pressing plate to be pressed on oil sprayer, 006, the oil sprayer that coupling arrangement is housed is assemblied in engine cylinder to cover, the cylndrical surface outer rim along coupling arrangement loads valve cover cap, just achieves the sealed attachment of valve cover cap and oil sprayer.
Joining method of the present invention is effectively practical, and exploitativeness is strong, and institute adopts connecting device structure simply, and characteristics of compact layout is easy to operate, favorable sealing property.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present invention;
Fig. 2 is valve cover cap and oil sprayer connecting device structure schematic diagram;
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment: a kind of valve cover cap of the present invention and oil sprayer coupling arrangement, comprise support ring 1, pressing plate 3 and bolt 4, described support ring 1 is provided with for providing the mounting hole 5 of radial location to oil sprayer and for providing the thrust surface 6 of axially locating to oil sprayer, the below of described mounting hole 5 is provided with for realizing coupling arrangement and the circumferential positioning boss 7 of locating of oil sprayer, two installation bases 9 for construction bolt are provided with inside described support ring 1, described installation base 9 is provided with the first pressing plate mounting platform terrace 10 and the second pressing plate mounting platform terrace 11, described first pressing plate mounting platform terrace 10 is positioned at the outside of installation base 9, described second pressing plate mounting platform terrace 11 is positioned at the inner side of installation base 9, the height of described second pressing plate mounting platform terrace 11 is lower than the first pressing plate mounting platform terrace 10, described support ring 4 outer surface is circumferentially provided with cylndrical surface outer rim 12, the inwall of described mounting hole 5 is circumferentially provided with a circle seal groove 8, seal ring 2 is provided with in described seal groove 8, one end of described pressing plate 3 is positioned on the first pressing plate mounting platform terrace 10, one end of described bolt 4 is passed pressing plate 3 and is arranged in installation base 9.For saving space, select minimum seal ring sectional area meeting under seal request prerequisite, according to environmental requirements such as sealing medium, internal pressure and temperature, the material of described seal ring 2 can adopt AEM rubber, and the compressibility of described seal ring 2 is 10%-18%.
Valve cover cap and oil sprayer joining method comprise the following steps:
001, the diameter D0 of oil sealing is covered according to the electric connection of oil sprayer 13 and high pressure joint physical dimension determination valve cover, support ring 1 arranges the diameter D1 of cylndrical surface outer rim 12, meet D1>D0, ensure to coordinate with the oil sealing of valve cover cap 14, realize the sealing with valve cover cap 14;
002, according to the diameter D of oil sprayer 13 with mounting hole 5 cooperation place, determine the diameter of bore D2 of mounting hole 5, meet D2>D, ensure that the gap between oil sprayer 13 and mounting hole 5 is 0.05mm-2mm, seal ring 2 is loaded in seal groove 8, support ring 1 arranges installation base 9, installation base 9 arranges the first pressing plate mounting platform terrace 10 and the second pressing plate mounting platform terrace 11, the height of the second pressing plate mounting platform terrace 11 is lower than the first pressing plate mounting platform terrace 10, by coupling arrangement with mounting hole 5 for guiding is arranged on after on oil sprayer 13, utilize the adaptivity of seal ring 2 to realize coupling arrangement and be arranged on radial location on oil sprayer 13,
003, because valve cover covers the diameter D0 of oil sealing and the diameter D disalignment of oil sprayer 13 cooperation place, there is eccentric distance e, positioning boss 7 is set bottom support ring 1, the width of positioning boss 7 and oil sprayer 13 cut flat with wide, when coupling arrangement being arranged on oil sprayer 13, rotary support ring 1, be adjusted to positioning boss 7 flat in the face of neat with cutting of oil sprayer 13, the circumference realizing coupling arrangement and oil sprayer 13 is located;
004, the shaft shoulder of oil sprayer 13 and thrust surface 6 are fitted, realize coupling arrangement and be arranged on axially locating on oil sprayer 13;
005, one end of pressing plate 3 is placed on the first pressing plate mounting platform terrace 10, pass pressing plate 3 centre with bolt 4 and be arranged in installation base 9, first pressing plate mounting platform terrace 10 provides a supporting role for pressing plate 3, after fastening for bolt 4, the other end of lever principle pressing plate 3 is utilized to be pressed on oil sprayer 13;
006, the oil sprayer 13 that coupling arrangement is housed is assemblied in engine cylinder to cover, the cylndrical surface outer rim 12 along coupling arrangement loads valve cover cap 14, just achieves the sealed attachment of valve cover cap 14 and oil sprayer 13.
This coupling arrangement adopts thin-walled design, take up room little, shape sets according to the spatial joint clearance between oil sprayer 13 and camshaft, by controlling shape and size precision by the minimum clearance of the gap control of coupling arrangement and camshaft at 2mm, total takes up room minimum, optimum with peripheral component gap.This joining method is effectively practical, and the connecting device structure adopted is simple, lightweight, easy to operate, and sealing is reliable.
High-temperature vibrating endurance test is verified
1. test objective: evaluate under high-temperature vibrating environment, the reliability of joining method, coupling arrangement and oil sprayer 13 seal and fastening reliability, and the sealing of coupling arrangement and valve cover cap 14.
2. test conditions
Tested parts: 4 cover coupling arrangement, oil sprayer 13 and valve cover caps 14
Test conditions: temperature: 100 DEG C
Testing installation: vibration tester
3. assessment item
1) after test injecting kerosene in coupling arrangement, leave standstill 24h, observe kerosene whether seepage;
2) loose moment of the bolt 4 of coupling arrangement is measured.
Through above-mentioned verification experimental verification, coupling arrangement and oil sprayer 13 and valve cover cap 14 sealing good, do not occur that kerosene seepage is bad, quite, tightening state is good for the loose moment of the bolt 4 of coupling arrangement and screw-down torque.
Claims (4)
1. a valve cover cap and oil sprayer coupling arrangement, comprise support ring (1), pressing plate (3) and bolt (4), described support ring (1) is provided with for providing the mounting hole of radial location (5) to oil sprayer and for providing the thrust surface (6) of axially locating to oil sprayer, it is characterized in that: the below of described mounting hole (5) is provided with for realizing coupling arrangement and the circumferential positioning boss (7) of locating of oil sprayer, described support ring (1) inner side is provided with two installation bases for construction bolt (9), described installation base (9) is provided with the first pressing plate mounting platform terrace (10) and the second pressing plate mounting platform terrace (11), described first pressing plate mounting platform terrace (10) is positioned at the outside of installation base (9), described second pressing plate mounting platform terrace (11) is positioned at the inner side of installation base (9), the height of described second pressing plate mounting platform terrace (11) is lower than the first pressing plate mounting platform terrace (10), described support ring (4) outer surface is circumferentially provided with cylndrical surface outer rim (12), the inwall of described mounting hole (5) is circumferentially provided with a circle seal groove (8), seal ring (2) is provided with in described seal groove (8), one end of described pressing plate (3) is positioned on the first pressing plate mounting platform terrace (10), one end of described bolt (4) is passed pressing plate (3) and is arranged in installation base (9).
2. valve cover cap according to claim 1 and oil sprayer coupling arrangement, is characterized in that: the material of described seal ring (2) adopts AEM rubber.
3. valve cover cap according to claim 1 and oil sprayer coupling arrangement, is characterized in that: the compressibility of described seal ring (2) is 10%-18%.
4., according to the valve cover cap in claim 1-3 described in any one and oil sprayer coupling arrangement, its joining method comprises the following steps:
001, the diameter D0 of oil sealing is covered according to the electric connection of oil sprayer (13) and high pressure joint physical dimension determination valve cover, support ring (1) arranges the diameter D1 of cylndrical surface outer rim (12), meet D1>D0, ensure to coordinate with the oil sealing of valve cover cap (14), realize the sealing with valve cover cap (14);
002, according to the diameter D of oil sprayer (13) with mounting hole (5) cooperation place, determine the diameter of bore D2 of mounting hole (5), meet D2>D, ensure that the gap between oil sprayer (13) and mounting hole (5) is 0.05mm-2mm, seal ring (2) is loaded in seal groove (8), support ring 1 arranges installation base (9), installation base (9) arranges the first pressing plate mounting platform terrace (10) and the second pressing plate mounting platform terrace (11), the height of the second pressing plate mounting platform terrace (11) is lower than the first pressing plate mounting platform terrace (10), by coupling arrangement with mounting hole (5) for guiding be arranged on oil sprayer (13) upper after, utilize the adaptivity of seal ring (2) to realize coupling arrangement and be arranged on radial location on oil sprayer (13),
003, because valve cover covers the diameter D0 of oil sealing and the diameter D disalignment of oil sprayer (13) cooperation place, there is eccentric distance e, in support ring (1) bottom, positioning boss (7) is set, the width of positioning boss (7) and oil sprayer (13) cut flat with wide, when coupling arrangement being arranged on oil sprayer (13), rotary support ring (1), be adjusted to positioning boss (7) flat in the face of neat with cutting of oil sprayer (13), the circumference realizing coupling arrangement and oil sprayer (13) is located;
004, the shaft shoulder of oil sprayer (13) and thrust surface (6) are fitted, realize coupling arrangement and be arranged on axially locating on oil sprayer (13);
005, one end of pressing plate (3) is placed on the first pressing plate mounting platform terrace (10), with bolt (4) through being arranged in installation base (9) in the middle of pressing plate (3), first pressing plate mounting platform terrace (10) provides a supporting role for pressing plate (3), after fastening for bolt (4), the other end of lever principle pressing plate (3) is utilized to be pressed on oil sprayer (13);
006, the oil sprayer (13) that coupling arrangement is housed is assemblied in engine cylinder to cover, cylndrical surface outer rim (12) along coupling arrangement loads valve cover cap (14), just achieves the sealed attachment of valve cover cap (14) and oil sprayer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453764.0A CN105114200B (en) | 2015-07-29 | 2015-07-29 | Device and method for connecting valve cover cap and oil injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453764.0A CN105114200B (en) | 2015-07-29 | 2015-07-29 | Device and method for connecting valve cover cap and oil injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114200A true CN105114200A (en) | 2015-12-02 |
| CN105114200B CN105114200B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510453764.0A Active CN105114200B (en) | 2015-07-29 | 2015-07-29 | Device and method for connecting valve cover cap and oil injector |
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| Country | Link |
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| CN (1) | CN105114200B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756803A (en) * | 2016-04-27 | 2016-07-13 | 江苏四达动力机械集团有限公司 | Installation sealing device of oil atomizer |
| CN109268183A (en) * | 2018-11-20 | 2019-01-25 | 宁波裕隆汽车制泵有限公司 | A kind of fuel injector installation latch closure and its processing method |
| CN112901389A (en) * | 2020-10-30 | 2021-06-04 | 重庆长安汽车股份有限公司 | Fuel injector support ring mounting structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546855A (en) * | 2003-12-12 | 2004-11-17 | 上海交通大学 | Sealing device for common rail Injector of diesel engine |
| JP2005233251A (en) * | 2004-02-18 | 2005-09-02 | Eagle Engineering Aerospace Co Ltd | Seal device |
| US7281521B2 (en) * | 2000-11-10 | 2007-10-16 | Siemens Aktiengesellschaft | Sealing element for placing between an injector casing and a cylinder head and an injector casing and a cylinder head provided with a sealing element of this type |
| CN201891520U (en) * | 2010-12-10 | 2011-07-06 | 中国重汽集团济南动力有限公司 | Fuel oil return structure for air cylinder cover |
-
2015
- 2015-07-29 CN CN201510453764.0A patent/CN105114200B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7281521B2 (en) * | 2000-11-10 | 2007-10-16 | Siemens Aktiengesellschaft | Sealing element for placing between an injector casing and a cylinder head and an injector casing and a cylinder head provided with a sealing element of this type |
| CN1546855A (en) * | 2003-12-12 | 2004-11-17 | 上海交通大学 | Sealing device for common rail Injector of diesel engine |
| JP2005233251A (en) * | 2004-02-18 | 2005-09-02 | Eagle Engineering Aerospace Co Ltd | Seal device |
| CN201891520U (en) * | 2010-12-10 | 2011-07-06 | 中国重汽集团济南动力有限公司 | Fuel oil return structure for air cylinder cover |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756803A (en) * | 2016-04-27 | 2016-07-13 | 江苏四达动力机械集团有限公司 | Installation sealing device of oil atomizer |
| CN105756803B (en) * | 2016-04-27 | 2018-07-31 | 江苏四达动力机械集团有限公司 | Fuel injector installs sealing device |
| CN109268183A (en) * | 2018-11-20 | 2019-01-25 | 宁波裕隆汽车制泵有限公司 | A kind of fuel injector installation latch closure and its processing method |
| CN112901389A (en) * | 2020-10-30 | 2021-06-04 | 重庆长安汽车股份有限公司 | Fuel injector support ring mounting structure |
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| Publication number | Publication date |
|---|---|
| CN105114200B (en) | 2017-10-10 |
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