CN220319709U

CN220319709U - Oil rail fuel injector assembly and engine

Info

Publication number: CN220319709U
Application number: CN202322242773.8U
Authority: CN
Inventors: 彭永文; 陈冲; 朱建平
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Current assignee: Tianjin Alcohol Hydrogen Research And Development Co ltd; Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-01-09
Anticipated expiration: 2033-08-17

Abstract

The utility model discloses an oil rail oil sprayer assembly and an engine, wherein the oil rail oil sprayer assembly comprises an oil rail, a connecting seat, an oil sprayer and sealing rings, the connecting seat is arranged on the oil rail, the oil sprayer is communicated with the oil rail through the connecting seat, the sealing rings are arranged between the connecting seat and the oil sprayer, a plurality of sealing rings are arranged, and the sealing rings are sequentially arranged in the direction of the oil sprayer approaching the oil rail. The technical scheme of the utility model aims to improve the tightness between the connecting seat and the oil sprayer so as to reduce the entry of impurities in the external environment into the oil sprayer.

Description

Oil rail fuel injector assembly and engine

Technical Field

The utility model relates to the technical field of engines, in particular to an oil rail oil sprayer assembly and an engine.

Background

In the prior art, an engine includes a rail injector assembly including a rail, a connecting seat for connecting the rail, an injector for connecting the connecting seat, and a seal ring disposed between the connecting seat and the injector. It will be appreciated that the engine is running with a large vibration and the seal ring is prone to failure in this vibrating environment, thereby facilitating entry of foreign matter from the environment into the fuel injector, which may include, but is not limited to, dust.

Disclosure of Invention

The utility model aims to provide an oil rail oil sprayer assembly, which aims to improve the tightness between a connecting seat and an oil sprayer so as to reduce impurities in the external environment from entering the oil sprayer.

In order to achieve the above object, the present utility model provides an oil rail injector assembly comprising:

an oil rail;

the connecting seat is arranged on the oil rail;

the oil injector is communicated with the oil rail through the connecting seat; and

the sealing rings are arranged between the connecting seat and the oil sprayer, a plurality of sealing rings are arranged in sequence in the direction that the oil sprayer is close to the oil rail.

Optionally, the sealing ring abuts against the outer circumferential surface of the fuel injector and the inner circumferential surface of the connecting seat.

Optionally, the connecting seat and/or the fuel injector is provided with a plurality of limiting ring grooves, and one sealing ring is correspondingly arranged in one limiting ring groove.

Optionally, the outer peripheral surface of the fuel injector is provided with a plurality of limit ring grooves.

Optionally, a spacer ring is defined between two adjacent limiting ring grooves, and the spacer ring is used for separating two adjacent sealing rings.

Optionally, the inner peripheral surface of the connecting seat is provided with a plurality of limiting rings, and two adjacent limiting rings limit one limiting ring groove.

Optionally, the spacing ring between two adjacent sealing rings is configured as a spacer ring, and the spacer ring is used for separating two adjacent sealing rings.

Optionally, the sealing ring abuts against an inner peripheral surface of the fuel injector and an outer peripheral surface of the connecting seat.

Optionally, any two adjacent sealing rings are arranged at intervals.

The utility model also provides an engine, which comprises the oil rail oil injector assembly.

In the technical scheme of the utility model, the oil rail oil sprayer assembly comprises an oil rail, a connecting seat, an oil sprayer and a sealing ring. Wherein, the connecting seat is located the oil rail. The fuel injector is communicated with the fuel rail through the connecting seat. The sealing washer is located between connecting seat and the sprayer to seal the clearance between connecting seat and the sprayer, thereby reduce the fuel and flow out in this clearance, in addition also reduce impurity entering sprayer. The sealing rings are arranged in a plurality, and the sealing rings are sequentially arranged in the direction of the fuel injector, which is close to the fuel rail. Therefore, a plurality of seals can be formed, and particularly, once one sealing ring fails, the oil rail oil injector assembly has other sealing rings to realize a sealing effect, so that the sealing performance of the oil rail oil injector assembly is improved, the fuel leakage is reduced, and impurities are reduced to enter the oil injector. It should be noted that the plural references in this application refer to two or more.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a portion of an embodiment of a rail injector assembly according to the present utility model;

FIG. 2 is a schematic view of a portion of a fuel rail injector assembly according to another embodiment of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship between the components, the movement condition, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in abutment, or in communication between two elements or in interaction with each other, unless explicitly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the prior art, an engine includes a rail injector assembly including a rail, a connecting seat for connecting the rail, an injector for connecting the connecting seat, and a seal ring disposed between the connecting seat and the injector. It will be appreciated that the engine is running with a large vibration and the seal ring is prone to failure in this vibrating environment, thereby facilitating entry of foreign matter from the environment into the fuel injector, which may include, but is not limited to, dust. Therefore, the utility model provides an oil rail oil sprayer assembly, which aims to improve the tightness between a connecting seat and an oil sprayer so as to reduce impurities in the external environment from entering the oil sprayer.

Referring to fig. 1 and 2, in one embodiment of the present utility model, the rail injector assembly includes a rail, a connection block 100, an injector 200, and a seal 300. Wherein, the connection base 100 is disposed on the oil rail. The fuel injector 200 communicates with the rail through the connection base 100. A seal ring 300 is provided between the connection seat 100 and the fuel injector 200 to seal a gap between the connection seat 100 and the fuel injector 200, thereby reducing fuel from flowing out of the gap and also reducing foreign substances from entering the fuel injector 200. The plurality of seal rings 300 are provided, and the plurality of seal rings 300 are sequentially arranged in the direction in which the fuel injector 200 approaches the fuel rail. In this way, a plurality of seals may be formed, and in particular, once one seal ring 300 fails, the fuel rail injector assembly has other seal rings 300 to achieve a sealing effect, which is beneficial to improving the tightness of the fuel rail injector assembly, reducing fuel leakage, and reducing impurities from entering the fuel injector 200. It should be noted that the plural references in this application refer to two or more.

Alternatively, in one embodiment, seal ring 300 abuts the outer peripheral surface of fuel injector 200 and the inner peripheral surface of connection seat 100. As such, connection base 100 encloses at least a portion of fuel injector 200, and at least a portion of fuel injector 200 is protected by connection base 100, which is beneficial for improving the structural integrity of fuel injector 200. However, the present design is not limited thereto, and in other embodiments, the seal ring 300 abuts against the inner peripheral surface of the fuel injector 200 and the outer peripheral surface of the connection seat 100. As such, fuel injector 200 encloses at least a portion of connection base 100, and at least a portion of connection base 100 is protected by fuel injector 200, which is beneficial for improving the structural integrity of connection base 100.

Optionally, in an embodiment, the connecting seat 100 and/or the fuel injector 200 is provided with a plurality of limiting ring grooves 400, and a sealing ring 300 is correspondingly disposed in a limiting ring groove 400. Thus, in the assembly process of the connecting seat 100 and the fuel injector 200, the sealing ring 300 is not easy to slide, which is beneficial to improving the product consistency of the mass-produced fuel rail fuel injector assembly.

Optionally, in an embodiment, the outer circumferential surface of the fuel injector 200 is provided with a plurality of limiting ring grooves 400. Thus, in the assembly process of the connecting seat 100 and the fuel injector 200, the sealing ring 300 is not easy to slide, which is beneficial to improving the product consistency of the mass-produced fuel rail fuel injector assembly. However, the present design is not limited thereto, and in other embodiments, the limiting ring groove 400 is provided on both the outer circumferential surface of the fuel injector 200 and the inner circumferential surface of the connecting seat 100.

Optionally, in one embodiment, a spacer ring 600 is defined between two adjacent limiting ring grooves 400, and the spacer ring 600 is used to separate two adjacent sealing rings 300. In this way, the two adjacent sealing rings 300 are separated by the separating ring 600, that is, the two adjacent sealing rings 300 are not contacted, so that the two adjacent sealing rings 300 are prevented from transferring impurities due to contact, and impurities are prevented from entering the fuel injector 200. In this way, the fuel is prevented from being contaminated.

Optionally, in another embodiment, the inner peripheral surface of the connecting seat 100 is provided with a plurality of limiting rings 500, and two adjacent limiting rings 500 define a limiting ring groove 400. Thus, in the assembly process of the connecting seat 100 and the fuel injector 200, the sealing ring 300 is not easy to slide, which is beneficial to improving the product consistency of the mass-produced fuel rail fuel injector assembly. However, the present design is not limited thereto, and in other embodiments, the limiting ring groove 400 is provided on both the outer circumferential surface of the fuel injector 200 and the inner circumferential surface of the connecting seat 100.

Optionally, in yet another embodiment, the spacing ring 500 between two adjacent sealing rings 300 is configured as a spacer ring 600, and the spacer ring 600 is used to separate two adjacent sealing rings 300. In this way, the two adjacent sealing rings 300 are separated by the separating ring 600, that is, the two adjacent sealing rings 300 are not contacted, so that the two adjacent sealing rings 300 are prevented from transferring impurities due to contact, and impurities are prevented from entering the fuel injector 200. In this way, the fuel is prevented from being contaminated.

Optionally, in one embodiment, any two adjacent sealing rings 300 are spaced apart. Thus, the two adjacent sealing rings 300 are not contacted, so that the two adjacent sealing rings 300 are prevented from mutually transmitting impurities due to contact, and impurities are prevented from entering the fuel injector 200. In this way, the fuel is prevented from being contaminated.

Alternatively, in one embodiment, the seal ring 300 is configured as an O-ring. However, the present design is not limited thereto, and in other embodiments, the seal ring 300 may be configured as other types of seal rings 300, which are not limited thereto.

Alternatively, in one embodiment, the seal ring 300 is configured as a flat gasket. However, the present design is not limited thereto, and in other embodiments, the seal ring 300 may be configured as other types of seal rings 300, which are not limited thereto.

The utility model also provides an engine, which comprises the oil rail oil sprayer assembly, and the specific structure of the oil rail oil sprayer assembly refers to the embodiment, and because the engine adopts all the technical schemes of all the embodiments, the engine at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. An oil rail injector assembly, comprising:

an oil rail;

the connecting seat is arranged on the oil rail;

2. The fuel rail injector assembly of claim 1 wherein said seal ring abuts an outer peripheral surface of said fuel injector and an inner peripheral surface of said connection block.

3. The fuel rail injector assembly of claim 2, wherein said connecting seat and/or said fuel injector is provided with a plurality of limiting ring grooves, one of said sealing rings being correspondingly provided in one of said limiting ring grooves.

4. The fuel rail injector assembly of claim 3, wherein said fuel injector is provided with a plurality of said retaining ring grooves on an outer peripheral surface thereof.

5. The fuel rail injector assembly of claim 4, wherein a spacer ring is defined between adjacent ones of said retaining ring grooves, said spacer ring separating adjacent ones of said seal rings.

6. The fuel rail injector assembly of claim 3, wherein said connector base has a plurality of stop rings on an inner periphery thereof, adjacent two of said stop rings defining one of said stop ring grooves.

7. The fuel rail injector assembly of claim 6, wherein said spacing ring between adjacent ones of said seal rings is configured as a spacer ring separating adjacent ones of said seal rings.

8. The fuel rail injector assembly of claim 1, wherein said seal ring abuts an inner peripheral surface of said injector and an outer peripheral surface of said connecting seat.

9. The fuel rail injector assembly of claim 1, wherein any adjacent two of said seal rings are spaced apart.

10. An engine comprising the rail injector assembly of any one of claims 1 to 9.