CN218454774U - Many interfaces oil spout pipe joint subassembly - Google Patents

Abstract

The application relates to engine accessory technical field, more specifically relates to oil spout union coupling subassembly of many interfaces, includes: the utility model provides an advance oil pipe, a plurality of goes out oil pipe, distributing pipe and a plurality of damping device, advance and have a plurality of import on the oil pipe, the import is connected with oil piping system's output, each goes out oil pipe and all has a mistake oil pocket, a plurality of export has on the wall of forming the oil pocket, the distributing pipe feeds through respectively into oil pipe and each goes out oil pipe, each is crossed the oil intracavity and all is equipped with a damping device, damping device is located the one end that an oil pipe deviates from the distributing pipe, damping device includes a floating piston, floating piston slides and sets up in crossing the oil intracavity, floating piston deviates from the oil intracavity of crossing of the one end of distributing pipe and is annotated high-pressure nitrogen gas, the utility model discloses a when lubricating oil strikes floating piston, floating piston further compresses high-pressure nitrogen gas, high-pressure nitrogen gas provides the buffering, realizes that the oil spout scope is wide, takes damping device, the little advantage of vibration.

Description

Many interfaces oil spout pipe joint subassembly

Technical Field

The application relates to the field of engine accessories, in particular to a multi-interface oil injection pipe joint assembly.

Background

In order to effectively reduce the surface abrasion of moving parts of the engine during movement, the engine is usually provided with a lubricating oil way system, and lubricating oil is continuously supplied to the engine during the operation of the engine to play roles in lubrication, cooling, cleaning and the like. In a lubrication oil circuit system, an oil injection pipe is used as an important component, and various specifications and sizes are often used for meeting the oil supply and installation requirements of the oil circuit system.

In a conventional multi-port oil injection pipe 90, as shown in fig. 1, the multi-port oil injection pipe 90 is disposed in an annular cavity 91 in an engine, as shown in fig. 2, the multi-port oil injection pipe 90 includes an oil inlet 92, a connecting pipe 93 and a plurality of oil outlet pipes 94, each of the oil outlet pipes 94 has a plurality of ports 95 thereon, wherein the connecting pipe 93 communicates with the oil inlet 92 and each of the oil outlet pipes 94, respectively. When the lubricating oil enters the multi-port oil injection pipe 90 from the oil inlet 92, the lubricating oil flows into each oil outlet pipe 94 through the connecting pipe 93 and is sprayed out from the port 95, so as to lubricate and cool the wall surface of the annular cavity 91. Since the oil outlet pipes 94 are spaced at different positions of the connecting pipe 93, the lubricating oil can be sprayed to various positions of the annular cavity 91 after being sprayed from the interface 95.

In order to realize the ejection of the lubricating oil from the joint 95, in the multi-joint oil spout pipe 90, the end of the oil outlet pipe 94 away from the end of the connecting pipe 93 is closed, and after the lubricating oil flows into the oil outlet pipe 94 and collides with the bottom wall of the oil outlet pipe 94, since the bottom wall of the oil outlet pipe 94 is completely closed and the joint 95 is spaced from the bottom wall of the oil outlet pipe 94 by a predetermined distance, the oil is blocked and returned after colliding with the wall surface, and only the oil is ejected from the joint 95. However: when the lubricating oil collides with the bottom wall of the oil outlet pipe 94 and is prevented from returning, the lubricating oil is impacted and returned, and the oil outlet pipe 94 has a large degree of instantaneous vibration, and the vibration is also transmitted to the engine and the related components because the multi-port oil injection pipe 90 is installed in the engine. In addition, since the multi-port oil jet pipe 90 has a plurality of oil outlet pipes 94, each of the oil outlet pipes 94 generates vibration during the collision and the returning of the liquid and acts on the engine. Therefore, although the multi-port fuel injection pipe 90 has the advantage of more uniform and comprehensive lubrication compared with a fuel injection pipe with only a single fuel outlet pipe, the multi-port fuel injection pipe 90 has larger working vibration, and the vibration can cause vibration of the engine and the related components thereof, accelerate fatigue of the related components and shorten the service life of the engine.

Therefore, a need exists for a multi-port fuel injection pipe joint assembly with a damping device and small vibration.

Disclosure of Invention

The main aim at provides a many interfaces oil spout pipe joint subassembly, wherein, many interfaces oil spout pipe joint subassembly includes that one advances oil pipe, a plurality of play oil pipe, distributing pipe and a plurality of damping device, it has a plurality of import on the oil pipe to advance, the import is connected with oil piping's output, each it all has an oil pocket to go out oil pipe, forms a plurality of export has on the wall of oil pocket, the distributing pipe communicates respectively advance oil pipe and each go out oil pipe, each it all is equipped with one to go out the oil intracavity damping device, damping device is located it deviates from to go out oil pipe the one end of distributing pipe, damping device includes a floating piston, floating piston slide set up in cross the oil pocket, floating piston deviates from the one end of distributing pipe cross the oil intracavity and annotate high-pressure nitrogen gas, flow into when lubricating oil cross behind the oil pocket, strike and promote floating piston to cross the end direction motion of oil pocket, and further extrude high-pressure nitrogen gas, high-pressure nitrogen gas provides the buffering for the lubricating oil that injects fast, and then reduced the instantaneous vibration after oil spout pipe joint subassembly receives many interfaces lubricating oil and assault.

Another aim at of this application provides a many interfaces oil spout pipe joint subassembly, wherein, cross the oil cavity and have a locating part, the locating part is located go out oil pipe and deviate from the one end of distributing pipe, a through-hole has on the locating part, floating piston is located the locating part deviates from the one end of distributing pipe, each it deviates from to go out oil pipe the tip of the one end of distributing pipe all has the outside opening of a intercommunication, many interfaces oil spout pipe joint subassembly still includes a plurality of first closure piece, each first closure piece is all located oil pipe has open-ended one end and seals the opening, the locating part with between the first closure piece cross the oil cavity and be the nitrogen chamber, form have a gas injection hole on the wall of nitrogen chamber, through the opening will floating piston is put into in the nitrogen chamber, through the gas injection hole does the nitrogen chamber injects high pressure nitrogen gas, provides the condition for realizing the shock attenuation.

Another object of the present application is to provide a multi-port oil spout pipe joint assembly, wherein, multi-port oil spout pipe joint assembly simple structure, simple operation do not relate to complicated manufacturing process and expensive material, have higher economic nature, easily promote and use.

In order to achieve at least one of the above objects, the present application provides a multi-port oil injection pipe joint assembly fixedly connected to an engine having an oil passage system, wherein the multi-port oil injection pipe joint assembly includes:

the oil inlet pipe is provided with a plurality of inlets, and the inlets are connected with the output end of the oil way system; and

the oil outlet pipes are provided with an oil passing cavity, and the wall surface forming the oil passing cavity is provided with a plurality of outlets; and

the distribution pipe is communicated with the oil inlet pipe and each oil outlet pipe respectively; and

a plurality of damping device, each cross the oil intracavity and all be equipped with one damping device, damping device is located it deviates from to go out the oil pipe the one end of distributing pipe, damping device includes a floating piston, floating piston slide set up in cross the oil intracavity, floating piston deviates from the one end of distributing pipe cross the oil intracavity and annotated high-pressure nitrogen gas.

In one or more embodiments of this application, cross the oil intracavity and have a locating part, the locating part is located oil pipe deviates from the one end of distributing pipe, a through-hole has on the locating part, the aperture of through-hole is less than floating piston's the biggest radial dimension, floating piston is located the locating part deviates from the one end of distributing pipe.

In one or more embodiments of this application, each the end that the oil pipe deviates from the one end of distributing pipe all has an opening that leads to the outside, many interfaces oil spout pipe joint subassembly still includes a plurality of first closure, first closure with the oil pipe one-to-one, each first closure all locates the oil pipe has open-ended one end and seals the opening.

In one or more embodiments of the present application, the oil passing cavity between the limiting member and the first closing member is a nitrogen chamber, and a wall surface forming the nitrogen chamber has a gas injection hole.

In one or more embodiments of this application, each one end that the oil pipe deviates from the distributing pipe has a arch, protruding with oil pipe fixed connection, the arch has a connecting hole, the connecting hole intercommunication the gas injection hole, many interfaces oil spout pipe joint subassembly still includes a plurality of second closure, protruding with the second closure one-to-one, each the second closure all with correspond protruding threaded connection and seal the connecting hole.

In one or more embodiments of this application, the downthehole annular shaft shoulder that has of gas injection, many interfaces oil spout pipe joint subassembly still includes a plurality of rubber buffer, the rubber buffer is located annular shaft shoulder with between the second closure, just the both ends of rubber buffer respectively with annular shaft shoulder with the second closure supports and leans on.

In one or more embodiments of the present application, the second closing member has a through hole, and the multiple-port fuel injection pipe joint assembly further includes a plurality of third closing members, each of the second closing members corresponds to one of the third closing members, and one end of each of the third closing members extends into and closes one corresponding through hole.

In one or more embodiments of this application, the distributing pipe is the arc, and one side that the distributing pipe deviates from the oil outlet pipe has a plurality of oil outlet.

In one or more embodiments of the present application, each of the oil outlet pipes is perpendicular to the distribution pipe, and one end of each of the oil outlet pipes, which is close to the distribution pipe, is bent at a predetermined angle.

In one or more embodiments of the present application, the outlet is located between the stopper and the dispensing tube.

In this application embodiment, the oil pipe has one and has crossed the oil pocket, and the one end that the oil pipe deviates from the distributing pipe has a nitrogen chamber, nitrogen chamber and the intercommunication of crossing the oil pocket, the nitrogen intracavity slides and is provided with a floating piston, floating piston deviates from the one end of oil pocket and has been annotated high-pressure nitrogen gas, after crossing the oil intracavity high-speed inflow lubricating oil, lubricating oil strikes floating piston and promotes floating piston to the motion of the end wall orientation in nitrogen chamber, and further extrude high-pressure nitrogen gas, the process that high-pressure nitrogen gas further compressed provides the buffering, the instantaneous impact of lubricating oil is progressively unloaded along with floating piston's removal, make many interfaces spout oil pipe joint subassembly under the wide advantage of original oil spout scope, overcome the defect that the vibration is big.

Drawings

These and/or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings of which:

FIG. 1 illustrates a schematic diagram of a prior art multi-port fuel injector tube disposed within an engine;

fig. 2 illustrates a structural schematic diagram of a multi-interface oil injection pipe in the prior art;

FIG. 3 illustrates a schematic structural view of a multi-port fuel injection pipe joint assembly of the present invention;

FIG. 4 illustrates a cross-sectional view of a flowline;

fig. 5 illustrates a partial enlarged view at C of fig. 4.

Detailed Description

The terms and words used in the following specification and claims are not limited to the literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the application. Thus, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present application are provided for illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

It is understood that the terms "a" and "an" should be interpreted as meaning "at least one" or "one or more," i.e., that a quantity of one element may be one in one embodiment, while a quantity of another element may be plural in other embodiments, and the terms "a" and "an" should not be interpreted as limiting the quantity.

While ordinal numbers such as "first", "second", etc., will be used to describe various components, those components are not limited thereto. The term is used only to distinguish one component from another component. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the teachings of the inventive concepts. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

Summary of the application

Because the bottom wall of the oil outlet pipe is completely closed, and the joint is spaced from the bottom wall of the oil outlet pipe by a preset distance, after lubricating oil flows into the oil outlet pipe, the lubricating oil collides with the bottom wall of the oil outlet pipe and is blocked and turned back, the lubricating oil is impacted and turned back, the oil outlet pipe has vibration to a large extent, and because the multi-joint oil injection pipe is arranged in the engine, the vibration is also transmitted to the engine and related components thereof, or the fatigue of the related components is accelerated, and the service life of the engine is shortened.

Based on above-mentioned technical problem, this application provides a many interfaces oil spout pipe joint subassembly, wherein, many interfaces oil spout pipe joint subassembly simple structure does not relate to complicated manufacturing process and expensive material, has higher economic nature, and simultaneously, to the producer, many interfaces oil spout pipe joint subassembly that this application provided easily produces, and low cost more is favorable to controlling manufacturing cost, further is favorable to product popularization and use.

An exemplary multi-port fuel injection pipe fitting assembly,

referring to fig. 3 to 5, a multi-port fuel injection pipe joint assembly according to a preferred embodiment of the present invention is disposed in an inner cavity of an engine and fixedly connected to the engine, preferably in a threaded connection, wherein the engine has an oil path system, and the oil path system includes but is not limited to a lubricating oil path system of the engine described in patent document (CN 201220471149.4).

Further, as shown in fig. 3, the multi-port fuel injection pipe joint assembly includes an oil inlet pipe 10, a plurality of oil outlet pipes 20, and a distribution pipe 30.

Specifically, as shown in fig. 3, the oil inlet pipe 10 has a plurality of inlets 101, the inlets 101 are connected to the output end of the oil-way system, the output end of the oil-way system outputs lubricating oil and inputs the lubricating oil into the inlets 101, and the lubricating oil flows into the interior of the multi-port oil injection pipe joint assembly from the inlets 101;

in addition, as shown in fig. 4, each oil outlet pipe 20 has an oil passing chamber 201, and the oil outlet pipe 20 is made to be cylindrical, and a plurality of outlets 2011 are formed on the wall surface forming the oil passing chamber 201; as shown in fig. 3, the distribution pipe 30 is connected to the oil inlet pipe 10 and each of the oil outlet pipes 20. It should be noted that the lubricating oil flows through the distributing pipe 30 and enters the oil passing chamber 201 of each oil outlet pipe 20. In addition, one end of each oil outlet pipe 20, which is far away from the oil inlet pipe 10, is sealed, after the lubricating oil flows into the oil passing cavity 201, because one end of the oil passing cavity 201, which is far away from the oil inlet pipe 10, is sealed, the cooling liquid turns back after colliding with the bottom wall of the oil passing cavity 201 and is sprayed out from the outlet 2011, and the inner cavity of the engine is lubricated and cooled.

In addition, in this embodiment, the oil outlet pipe 20 is three in number, and the distribution pipe 30 is curved to adapt to the shape of the internal cavity of the engine. It should be noted that, when the multi-port fuel injection pipe joint assembly is fixedly installed in the inner cavity, the distribution pipe 30 and each of the fuel outlet pipes 20 are attached to the wall surface of the inner cavity. In addition, the oil outlet pipes 20 are located at different positions on the same side of the distribution pipe 30, so that the corners of the inner cavity can be cooled and cooled conveniently.

Further, as shown in fig. 4, many interfaces injection pipe joint subassembly still includes a plurality of damping device 40, each all be equipped with one in the oil passing cavity 201 damping device 40, damping device 40 is located oil pipe 20 deviates from the one end of distribution pipe 30, damping device 40 includes a floating piston 401, floating piston 401 slide set up in the oil passing cavity 201, floating piston 401 deviates from the one end of distribution pipe 30 the oil passing cavity 201 is annotated and is had high-pressure nitrogen gas.

It should be noted that, when the lubricating oil enters the oil passing cavity 201 and flows toward the bottom wall of the oil passing cavity 201, the lubricating oil impacts the floating piston 401, and causes the floating piston 401 to move a predetermined distance toward the bottom wall of the oil passing cavity 201, and further compresses the high-pressure nitrogen gas, and when the pressure in the cavity filled with the high-pressure nitrogen gas is greater than the thrust of the cooling liquid to the floating piston 401, the floating piston 401 does not move toward the bottom wall of the oil passing cavity 201 any more. It should be noted that the chamber in which the high-pressure nitrogen gas is located provides a buffer zone for the floating piston 401, so that the impact force of the lubricating oil on the floating piston 401 is gradually weakened, and the transient vibration of the multi-port oil injection pipe joint assembly after the lubricating oil is injected is reduced. Due to the existence of the damping device 40, the multi-interface oil injection pipe joint assembly not only keeps the advantages of comprehensive and uniform oil injection, but also avoids the defect of overlarge vibration.

Further, as shown in fig. 4, the damping device 40 further includes a limiting member 402, the limiting member 402 is disposed in the oil passing chamber 201, the limiting member 402 is located at an end of the oil outlet pipe 20 away from the distribution pipe 30, and the limiting member 402 is further implemented to be integrally formed with the oil outlet pipe 20. The floating piston 401 is located at one end of the limiting member 402, which faces away from the distribution pipe 30, the limiting member 402 has a through hole 4021, and the lubricating oil can pass through the through hole 4021 and act on the floating piston 401; in addition, the aperture of the through hole 4021 is smaller than the maximum radial dimension of the floating piston 401, and the moving range of the floating piston 401 is limited in the oil-passing chamber 201 between the limiting piece 402 and the bottom wall of the oil-passing chamber 201.

Further, as shown in fig. 4, the end of each oil outlet pipe 20 facing away from the distributing pipe 30 has an opening 202 communicating with the outside to facilitate the installer to place the floating piston 401 in the oil passing chamber 201; in addition, the multi-port fuel spout pipe joint assembly further includes a plurality of first closing members 203, the first closing members 203 correspond to the fuel outlet pipe 20 one by one, each first closing member 203 is disposed at one end of the fuel outlet pipe 20 having the opening 202 and closes the opening 202, and each first closing member 203 is fixedly connected to the corresponding fuel outlet pipe 20, and the fixed connection manner includes but is not limited to threaded connection or welding.

Further, as shown in fig. 4, the oil passing cavity 201 between the limiting member 402 and the first sealing member 203 is a nitrogen gas cavity 204, the nitrogen gas cavity 204 is slidably disposed in the nitrogen gas cavity 204, and the high-pressure nitrogen gas is injected from one end of the floating piston 401 departing from the limiting member 402 into the nitrogen gas cavity 204 of the first sealing member 203. In addition, in order to inject the high pressure nitrogen gas, as shown in fig. 4 and 5, a gas injection hole 205 is formed in a wall surface forming the nitrogen gas chamber 204, and an installer may insert an inflation needle into the gas injection hole 205 and inject the high pressure nitrogen gas.

In order to prevent the high-pressure nitrogen from flowing to the outside from the gas injection holes 205, further, as shown in fig. 5, one end of each oil outlet pipe 20 away from the distributing pipe 30 is provided with a protrusion 206, the protrusion 206 is fixedly connected with the oil outlet pipe 20, the fixed connection includes but is not limited to welding, the protrusion 206 is provided with a connecting hole 2061, the connecting hole 2061 is communicated with the gas injection holes 205, the multi-port oil spout pipe joint assembly further includes a plurality of second sealing members 2062, the protrusions 206 are in one-to-one correspondence with the second sealing members 2062, and each second sealing member 2062 is in threaded connection with the corresponding protrusion 206 and seals the connecting hole 2061. The second closure member 2062 is further embodied as a bolt and the boss 206 provides space for the second closure member 2062 to be threadably coupled to the flowline 20. When the content of the nitrogen in the nitrogen gas chamber 204 reaches a predetermined value, the second closing member 2062 is fixedly connected to the oil outlet pipe 20 and closes the gas injection hole 205.

In order to prevent the process of injecting high-pressure nitrogen gas, the high-pressure nitrogen gas flows from the gas injection hole 205 to the outside, further, as shown in fig. 5, an annular shoulder 2051 is provided in the gas injection hole 205, the annular shoulder 2051 is provided with an annular hole (not shown), the multiple-port fuel injection pipe joint assembly further comprises a plurality of rubber plugs 50, the rubber plugs 50 are located between the annular shoulder 2051 and the second closure 2062, and two ends of the rubber plugs 50 respectively abut against the annular shoulder 2051 and the second closure 2062. In addition, the rubber plug 50 is cylindrical, the diameter of the annular hole is smaller than the diameter of the rubber plug 50, and when the rubber plug 50 abuts against the annular shoulder 2051, the rubber plug 50 closes the annular hole. Annular shoulder 2051 avoids rubber buffer 50 falls into in the nitrogen gas chamber 204, installer when pouring into high-pressure nitrogen gas into, will aerify the needle and insert and pass rubber buffer 50 passes again the annular hole, to pour into in the nitrogen gas chamber 204 high-pressure nitrogen gas because rubber buffer 50 seals the annular hole, high-pressure nitrogen gas is difficult for flowing to the external world at the injection in-process. In addition, after high pressure nitrogen gas injection finishes, and extract aerify the needle after, because rubber buffer 50 has elasticity, can tighten up automatically and aerify the hole that the needle left, further prevent high pressure nitrogen gas's loss.

In order to prevent the overpressure in the nitrogen gas chamber 204 during the inflation process and to separate the rubber stopper 50 from the annular shoulder 2051, as shown in fig. 5, the second sealing member 2062 has a through hole 20621, the multi-port oil spout pipe joint assembly further includes a plurality of third sealing members 207, each second sealing member 2062 corresponds to one third sealing member 207, and one end of each third sealing member 207 extends into the corresponding through hole 20621 and closes the through hole 20621. Since the second sealing member 2062 is fixedly connected to the oil outlet tube 20 and abuts against the rubber plug 50, the rubber plug 50 will not be released from the outside due to the air pressure, when the high-pressure nitrogen gas is injected, the inflation needle passes through the through hole 20621 and is inserted into the rubber plug 50, and after the high-pressure nitrogen gas in the nitrogen gas chamber 204 is higher than a predetermined value, the inflation needle is pulled out, so that the third sealing member 207 is fixedly connected to the second sealing member 2062 and seals the through hole 20621, and the fixing connection manner includes, but is not limited to, threaded connection, plugging connection or welding.

Further, in order to ensure the tightness of the floating piston 401, as shown in fig. 4, the side wall of the floating piston 401 has a plurality of mounting grooves 4011, a sealing ring is disposed in each mounting groove 4011, and the sealing ring is attached to the wall surface of the nitrogen gas chamber 204.

Further, as shown in fig. 3, a plurality of oil outlets 301 are formed in a side of the distribution pipe 30 away from the oil outlet pipe 20, and when the lubricating oil enters the multi-port oil injection pipe joint assembly, a part of the oil is sprayed out from the oil outlets 301, so as to further expand the oil spraying range of the multi-port oil injection pipe joint assembly.

In addition, in this embodiment, as shown in fig. 3, each of the oil outlet pipes 20 is vertically arranged with the distribution pipe 30, one end of each of the oil outlet pipes 20 close to the distribution pipe 30 is bent by a predetermined angle and connected with the distribution pipe 30, the outlet 2011 on the oil outlet pipe 20 sprays out the lubricating oil from the vertical direction, and the oil outlet holes 301 on the distribution pipe 30 spray out the lubricating oil from the horizontal direction. In addition, the outlet 2011 is located between the stopper 402 and the dispensing tube 30.

In summary, the multi-interface injection pipe joint assembly based on the embodiment of the present application is clarified, and provides advantages of a wide oil injection range, a damping device, small vibration and the like for the multi-interface injection pipe joint assembly.

It is worth mentioning that, in the embodiment of the present application, the multi-port injection pipe joint assembly has a simple structure, does not involve a complex manufacturing process and expensive materials, and has high economical efficiency. Simultaneously, to the manufacture factory, the many interfaces oil spout pipe joint subassembly that this application provided is easily produced, and low cost, more is favorable to controlling manufacturing cost, further is favorable to the product to promote and use.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and any variations or modifications may be made without departing from the principles of the present invention.

Claims (10)

1. The utility model provides a many interfaces injection pipe nipple subassembly, with engine fixed connection, the engine has oil piping system, its characterized in that: the multi-interface oil spray pipe joint component comprises

The oil inlet pipe is provided with a plurality of inlets, and the inlets are connected with the output end of the oil way system; and

the oil outlet pipes are provided with an oil passing cavity, and the wall surface forming the oil passing cavity is provided with a plurality of outlets; and

the distribution pipe is communicated with the oil inlet pipe and each oil outlet pipe respectively; and

a plurality of damping device, each cross the oil intracavity and all be equipped with one damping device, damping device is located it deviates from to go out the oil pipe the one end of distributing pipe, damping device includes a floating piston, floating piston slide set up in cross the oil intracavity, floating piston deviates from the one end of distributing pipe cross the oil intracavity and annotated high-pressure nitrogen gas.

2. The multi-port oil spout pipe joint assembly of claim 1, wherein: the oil distributing pipe is characterized in that a limiting part is arranged in the oil passing cavity, the limiting part is located at one end, deviating from the oil outlet pipe, of the distributing pipe, a through hole is formed in the limiting part, the aperture of the through hole is smaller than the maximum radial size of the floating piston, and the floating piston is located at one end, deviating from the distributing pipe, of the limiting part.

3. The multi-port fuel injection pipe joint assembly of claim 2, wherein: each go out oil pipe and deviate from the tip of the one end of distributing pipe all has the outside opening of a intercommunication, many interfaces oil spout pipe joint subassembly still includes the first closure of a plurality of, first closure with go out oil pipe one-to-one, each first closure all locates it has to go out oil pipe open-ended one end and seal the opening.

4. The multi-port fuel injection pipe joint assembly of claim 3, wherein: the oil passing cavity between the limiting piece and the first closing piece is a nitrogen cavity, and a gas injection hole is formed in the wall surface forming the nitrogen cavity.

5. The multi-port fuel injection pipe joint assembly of claim 4, wherein: each go out oil pipe and deviate from the one end of distributing pipe has a arch, protruding with go out oil pipe fixed connection, the arch has a connecting hole, the connecting hole intercommunication the gas injection hole, many interfaces oil spout pipe joint subassembly still includes a plurality of second closure, protruding with second closure one-to-one, each the second closure all with correspond protruding threaded connection seals the connecting hole.

6. The multi-port oil spout pipe joint assembly of claim 5, wherein: the gas injection hole has an annular shaft shoulder, many interfaces oil spout pipe joint subassembly still includes a plurality of rubber buffer, the rubber buffer is located annular shaft shoulder with between the second closure, just the both ends of rubber buffer respectively with annular shaft shoulder with the second closure supports and leans on.

7. The multi-port fuel injection pipe joint assembly of claim 6, wherein: the second closing piece is provided with a through hole, the multi-port oil injection pipe joint assembly further comprises a plurality of third closing pieces, each second closing piece corresponds to one third closing piece, and one end of each third closing piece extends into the corresponding through hole and closes the through hole.

8. The multi-port oil spout nipple assembly according to any one of claims 1 to 7, wherein: the distributing pipe is the arc, just the distributing pipe deviates from one side of oil outlet pipe has a plurality of oil outlet.

9. The multi-port oil spout pipe joint assembly of claim 8, wherein: each the oil outlet pipe all with the distributing pipe is vertical arrangement, and each the oil outlet pipe is close to the one end of distributing pipe is all buckled predetermined angle.

10. The multi-port oil spout nipple assembly according to any one of claims 2 to 7, wherein: the outlet is located between the limiting member and the distribution pipe.

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