CN200982256Y - Combined type common rail - Google Patents
Combined type common rail Download PDFInfo
- Publication number
- CN200982256Y CN200982256Y CN 200620098056 CN200620098056U CN200982256Y CN 200982256 Y CN200982256 Y CN 200982256Y CN 200620098056 CN200620098056 CN 200620098056 CN 200620098056 U CN200620098056 U CN 200620098056U CN 200982256 Y CN200982256 Y CN 200982256Y
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- Prior art keywords
- rail
- joint
- altogether
- joint body
- segmentation
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Abstract
The utility model discloses a convolution common rail, comprising grading common rail main blocks (1), an oil pipe joint (2), a joint body (3), an adapter sleeve (4), a joint connecting pipe (5), locating baffle rings (6), a collar seal (7), a support ring (8) and a disc spring (9), characterized in that the grading common rail main blocks (1) are separately arranged in the holes of one end of the joint body (3). The other end of the joint body (3) is provided with the disc spring (9), the support ring (8), the collar seal (7) and the adapter sleeve (4). The joint body (3) and the adapter sleeve (4) are separately arranged on the joint connecting pipe (5) separately welded with the locating baffle rings (6). The device has reasonable structural design, easy manufacture, and low requirement for the production facility. The device is easy to clean, timesaving, labor saving, quick-speed to connect and disconnect, and the connection is reliable.
Description
Affiliated technical field
The utility model relates to a kind of being used for by the high pressure connecting head two sections or the multistage connector element or the common-rail system that get up of rail coupling altogether.
Background technique
Present integral body rail altogether is by the Forging Technology moulding, forms the common rail main body of storing up fuel under high pressure with single part and makes with the joint that is used to be connected.This integrated type altogether rail is higher for Forging Technology and process equipment Capability Requirement, and rail can't be realized quick mounting and dismounting with oil pipe altogether.
Summary of the invention
For overcome existing solid forging altogether rail complex process and capacity of equipment require high, can't realize quick mounting and dismounting with oil pipe, connect that dismounting is time-consuming, effort and altogether rail inside accumulate fuel under high pressure inner chamber processing, clean the problem of difficulty, the utility model provides a kind of convolution common-rail system that is used for motor car engine, comprise segmentation or multistage rail altogether, every section connects by the transition joint assembly between the rail altogether, and the convolution that becomes motor to use through combine and assemble is total to rail.This device has production technology, the manufacturing mechanism requirement is low, cleaning is easy, and connection and dismounting save time, laborsaving, fast rapid and connection reliable characteristics.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of convolution is rail altogether, it comprises segmentation rail main body (1) altogether, oil connection (2), joint body (3), connecting sleeve (4), joint connecting tube (5), location baffle ring (6), seal ring (7), gasket ring (8), dish spring (9) is formed, it is characterized in that: segmentation rail main body (1) altogether is installed in respectively in the hole of joint body (3) one ends, be respectively equipped with dish spring (9) in the joint body (3), gasket ring (8), seal ring (7), connecting sleeve (4) is installed in the other end of joint body (3) respectively, joint body (3) and connecting sleeve (4) are installed in respectively on the joint connecting tube (5), on joint connecting tube (5), be welded with location baffle ring (6) respectively
One end of described joint body (3) is provided with outside thread (14), the other end is provided with screw thread (17), be provided with an annular boss (18) in the middle of the endoporus of joint body (3), boss (18) is provided with groove (15), is provided with the conical surface (16) and groove (19) in internal thread one side.
Described segmentation is provided with screw thread in rail main body (1) two ends altogether, top is provided with 1--6 threaded oil connection (2), the utility model optimum scheme is 2 oil connections, oil connection (2) is connected with the endoporus (11) that segmentation is total to rail, the segmentation bottom of rail main body (1) altogether is provided with Mounting Earrings (10), and Mounting Earrings (10) is provided with mounting hole.
The beneficial effects of the utility model are that joint style has been realized the segmentation convenience between rail, reliable combination altogether, has simplified production technology, has significantly reduced manufacture cost when guaranteeing reliability, has improved manufacturing efficiency, and has helped the general arrangement of motor.
Description of drawings
Below in conjunction with drawings and Examples furtherly to the utility model:
Fig. 1 is a rail assembly structure schematic representation altogether of the present utility model;
Fig. 2 is a segmentation of the present utility model rail generalized section altogether;
Fig. 3 is a transition joint assembly structure schematic representation of the present utility model
Fig. 4 is a joint body structural representation of the present utility model
Fig. 5 is a gasket ring structural representation of the present utility model.
1. segmentations are total to rail main body, 2. oil connection, 3. joint body, 4. connecting sleeve among the figure, 5. the joint connecting tube is 6. located baffle ring, 7.O RunddichtringO, 8. gasket ring, 9. dish spring, 10. Mounting Earrings, 11. rail endoporus altogether, 12. outside threads, 13. outside thread, 14. outside threads, 15. annular grooves, 16. conical surfaces, 17. screw thread, 18. annular boss, 19. grooves, 20. the ring conical surface, 21. arc surfaces, 22. planes.
Embodiment
In the embodiment shown in fig. 1, convolution altogether the rail assembly rail main body (1) and transition joint assembly are assembled altogether by two sections or multistage respectively.
In Fig. 1, embodiment shown in Figure 2, segmentation altogether rail main body (1) vertically be provided with hole (11), top is provided with oil connection (2), the oil connection cylindrical is provided with outside thread (13), a segmentation termination of rail main body (1) altogether is provided with outside thread (12), the other end simultaneous interpretation altogether rail is the same, and pressure-limit valve, pressure transducer etc. can be installed, and the segmentation centre of rail altogether is provided with an earrings, be provided with through hole above the earrings, by bolt convolution be total to rail and be installed on the motor.
In another embodiment shown in Figure 3, the transition joint assembly comprises joint body (3), connecting sleeve (4), joint connecting tube (5), location baffle ring (6), O RunddichtringO (7), gasket ring (8), dish spring (9), joint connecting tube (5) is hollow cylindrical structure, and accurate arc surface is processed at the hollow cylinder two ends; Location baffle ring (6) is formed by metallic material or engineering plastics manufacturing easy and joint connecting tube (5) welding.To locate baffle ring and be enclosed within on the joint connecting tube (5), the welding back forms an integral body; Dish spring (9) can be selected commercially available standard dish spring for use; Connecting sleeve (4) is provided with internal thread, and matching with the outside thread (14) of joint body (3) is installed together.
In the embodiment shown in fig. 4, joint body (3) is a rotary structure, one end is provided with outside thread (14), the other end is provided with screw thread (17), and an annular boss (18) is arranged in the middle of the body endoporus, is provided with annular groove (15) in the middle of the boss (18), annular groove is used to install O RunddichtringO (7), inner screw thread one side has the precision machined conical surface (16), and is convenient for machining screw (17), processes a groove (19) at the internal thread back-end location.
In the embodiment shown in fig. 5, an end of gasket ring (8) is plane (22), and an other end is the annulus conical surface (20), and the outside is arc surface (21), and surface finishment all has higher requirements.
From Fig. 1 of the present utility model, Fig. 3 as can be seen, at first with about two connecting sleeves (4) pack on the connecting tube (5), pack into from two ends respectively then and locate baffle ring (6), to locate baffle ring and be fixed by welding on the swagelok (5), left and right sides connecting sleeve (4) can be free to slide between the location baffle ring of two on the joint connecting tube (5) of centre (6); During assembling, in joint body (3), put into O RunddichtringO (7), put into gasket ring (8) then successively, dish spring (9), again segmentation being total to rail outside thread (12) is screwed in the internal thread of joint body (3), be total to rail end face and dish spring end face up to segmentation, gasket ring outer arc face (21) all closely cooperates with the joint body conical surface (20), after the rail combination two parts are combined closely together at joint body (3) then, make joint body (3), O RunddichtringO (7), gasket ring (8), dish spring (9), afterwards, one end of the transition joint connecting tube (5) of band connecting sleeve (4) is inserted in the endoporus of joint body (3), again the internal thread of connecting sleeve (4) is screwed on the outside thread of joint body (3), by screwing connecting sleeve (4), the power that imposes on connecting tube (5) is by gasket ring (8), dish spring (9) is delivered to segmentation rail main body (1) end face altogether, and make dish spring (9) that a small amount of distortion be arranged, the arc surface of joint connecting tube (5) and the inboard conical surface of gasket ring (8) (20) closely cooperate, and make it constitute a sub-assembly of rail altogether.Adopt same assembly method, assemble another common rail sub-assembly, so just constitute convolution rail assembly altogether at the other end of joint connecting tube (5).Be total to rail according to the utility model and assemble catenation principle, be total at this convolution on the basis of rail assembly, can increase or reduce being total to the rail sub-assembly or being total to the rail assembly at arbitrary end of its common rail, make it satisfy motor is total to the rail assembly to convolution requirement.
Working principle
Segmentation described in the utility model altogether between rail main body (1) and the transition joint assembly be by screw thread be welded to connect, can satisfy the requirement of high pressure sealing, from being connected sealing as can be seen between joint connecting tube (5) and the joint body (3), joint connecting tube (5) inserts the body band and contacts with the gasket ring conical surface (20) behind the rail sub-assembly altogether, applies moment then they are closely cooperated.During use, fuel oil enters common rail, is full of whole rail inner chamber (11) altogether rapidly, and owing to joint intermediate arc surface closely contacts with the gasket ring conical surface (20), and the joint intermediate outside has O RunddichtringO (7) to guarantee the sealing of fuel oil when low pressure; When fuel pressure raises, because the contact diameter of gasket ring (8) and joint connecting tube (5) is less than the contact diameter of gasket ring (8) with joint body (3), under the fluid pressure effect of fuel oil self, produce pressure difference, joint intermediate arc surface and gasket ring inner conical surface (20) will be closely cooperated, and along with pressure raises, sealing between them will be tightr, and this mode of depending on fluid pressure to reach sealing purpose can guarantee the reliability of common rail when high pressure.
1) enters common rail pipe when fuel oil, pretightening force owing to connecting sleeve (4) during low pressure is delivered to gasket ring (8), dish spring (9) by joint connecting tube (5), the elastic force of dish spring (9) cooperates the joint intermediate arc surface and the gasket ring conical surface (20), play the first layer seal action, O RunddichtringO (7) makes joint connecting tube (5) and joint body (3) boss inwall anchor ring form sealing simultaneously, play second layer seal action, make its sealing reliable.Raise with pressure, fuel oil increases the pressure difference of gasket ring (8), and joint connecting tube (5) arc surface and the gasket ring conical surface (20) will be closely cooperated more, thereby also can the reliable sealing purpose when reaching high pressure.
2) owing to adopted convenient and reliable segmentation rail Placement altogether, common rail can be made respectively with littler common rail unit, thereby simplified production technology, improved the manufacturing efficiency of common rail, reduced cost; By changing the form of joint, can be combined into different common rail forms, and be easy to be combined into the common rail of spatial structure simultaneously, more help oil-fired system and arrange.
3) use catenation principle between this common rail, also can realize the high-pressure oil pipe connection between the rail together, then will make the installation of pressure duct, dismounting convenient, save time.
Joint style of the present utility model has been realized the segmentation convenience between rail, reliable combination altogether, has simplified production technology, has significantly reduced manufacture cost when guaranteeing reliability, has improved manufacturing efficiency, and has helped the general arrangement of motor.
Claims (3)
1. a convolution is total to rail, it comprises segmentation rail main body (1) altogether, oil connection (2), joint body (3), connecting sleeve (4), joint connecting tube (5), location baffle ring (6), seal ring (7), gasket ring (8), dish spring (9) is formed, it is characterized in that: segmentation rail main body (1) altogether is installed in respectively in the hole of joint body (3) one ends, be respectively equipped with dish spring (9) in the joint body (3), gasket ring (8), seal ring (7), connecting sleeve (4) is installed in the other end of joint body (3) respectively, joint body (3) and connecting sleeve (4) are installed in respectively on the joint connecting tube (5), are welded with location baffle ring (6) on joint connecting tube (5) respectively.
2. a kind of convolution according to claim 1 is rail altogether, one end of joint body (3) is provided with outside thread (14), the other end is provided with screw thread (17), be provided with an annular boss (18) in the middle of the endoporus of joint body (3), boss (18) is provided with groove (15), is provided with the conical surface (16) and groove (19) in internal thread one side.
3. a kind of convolution according to claim 1 is rail altogether, it is characterized in that: the segmentation two ends cylindrical of rail main body (1) altogether is provided with screw thread, top is provided with threaded oil connection (2), oil connection (2) is connected with the endoporus (11) that segmentation is total to rail, the segmentation bottom of rail main body (1) altogether is respectively equipped with Mounting Earrings (10), and Mounting Earrings (10) is provided with mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098056 CN200982256Y (en) | 2006-07-24 | 2006-07-24 | Combined type common rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098056 CN200982256Y (en) | 2006-07-24 | 2006-07-24 | Combined type common rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982256Y true CN200982256Y (en) | 2007-11-28 |
Family
ID=38909415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098056 Expired - Lifetime CN200982256Y (en) | 2006-07-24 | 2006-07-24 | Combined type common rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982256Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003649A (en) * | 2015-07-23 | 2015-10-28 | 成都广迈科技有限公司 | Connecting-device seal cartridge |
| RU2635429C1 (en) * | 2017-02-15 | 2017-11-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный аграрный университет" (ФГБОУ ВО Волгоградский ГАУ) | Engine fuel system |
| CN109026481A (en) * | 2018-10-19 | 2018-12-18 | 安庆中船柴油机有限公司 | A kind of easy-disassembling-assembling fuel pipe group structure and assembly and disassembly methods |
| CN111894777A (en) * | 2020-06-30 | 2020-11-06 | 中国北方发动机研究所(天津) | Modular common rail pipe structure |
-
2006
- 2006-07-24 CN CN 200620098056 patent/CN200982256Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003649A (en) * | 2015-07-23 | 2015-10-28 | 成都广迈科技有限公司 | Connecting-device seal cartridge |
| RU2635429C1 (en) * | 2017-02-15 | 2017-11-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный аграрный университет" (ФГБОУ ВО Волгоградский ГАУ) | Engine fuel system |
| CN109026481A (en) * | 2018-10-19 | 2018-12-18 | 安庆中船柴油机有限公司 | A kind of easy-disassembling-assembling fuel pipe group structure and assembly and disassembly methods |
| CN109026481B (en) * | 2018-10-19 | 2023-09-01 | 安庆中船柴油机有限公司 | Easy-to-disassemble fuel pipe group structure and disassembly and assembly method |
| CN111894777A (en) * | 2020-06-30 | 2020-11-06 | 中国北方发动机研究所(天津) | Modular common rail pipe structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU RENHE LAOHEKOU AUTOMOBILE CO., LTD. Free format text: FORMER NAME: SUZHOU RENHE (LAOHEKOU) AUTOMOBILE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 441021 No. 7 Jiaojia kiln, Laohekou City, Hubei, Xiangfan Patentee after: SUZHOU RENHE LAOHEKOU AUTOMOBILE CO., LTD. Address before: 441021 No. 7 Jiaojia kiln, Laohekou City, Hubei, Xiangfan Patentee before: Suzhou Renhe (Laohekou) Car Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071128 |
|
| EXPY | Termination of patent right or utility model |