Valve seat and transverse cut-in type nozzle

A valve seat, nozzle hole technology, applied in the direction of valve lift, valve device, injection device, etc., can solve problems such as affecting the spray effect, blocking the nozzle hole, etc., and achieve good results.

Pending Publication Date: 2019-07-12
JIANGSU BATON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice, after the nozzle has been used for a long time, some oil will remain on the part of the inverted cone surface or spherical arc surface structure under the sphere after the sphere is in contact with the inverted cone surface or spherical arc surface structure, which is easy to form A large amount of insoluble and interrelated polymeric network viscous substances, which gradually accumulate and finally adhere to the inverted cone surface or spherical arc surface structure, forming surface coking, and finally clogging or partially clogging the nozzle hole, affecting the spray effect

Method used

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  • Valve seat and transverse cut-in type nozzle
  • Valve seat and transverse cut-in type nozzle
  • Valve seat and transverse cut-in type nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1-5As shown, this embodiment discloses a valve seat, which includes: a valve seat main body 1, the shape of the valve seat main body 1 is not limited, as long as it can cooperate with the structure of the nozzle (especially at the installation position of the nozzle) to realize the nozzle function, such as oil pipe body, in this embodiment, the valve seat body 1 can be regular shape, also can be irregular shape, preferably the cylinder structure in the regular shape, more preferably cylinder; The seat main body 1 is provided with a first cylindrical chamber 2, a swirl chamber, a first sealing chamber 3 and a nozzle hole 4 which communicate with each other. During use, the first cylindrical chamber 2 is in sliding contact with the sphere as much as possible to ensure The valve core does not skew when the ball slides, and the swirl chamber is arranged below the first cylindrical chamber 2, and its shape is not specifically limited, and it can be a regular ...

Embodiment 2

[0035] Such as Figure 6 and Figure 7 As shown, this embodiment discloses a cross-cut nozzle, which includes an oil pipe body 18, the lower end of which is socketed with the outer surface of the valve seat main body 1 of the valve seat, so that the fluid flows in a straight line Shaped groove 6 and diversion groove 7 are combined with the inner wall of the lower end of the oil pipe body 18 to form a closed fluid passage. After the fluid enters through the upper end of the straight groove 6, the fluid enters the diversion hole 8 through the fluid passage, wherein the valve The seat is the valve seat structure in Embodiment 1; it also includes a valve core 16, the lower end of which is connected to a ball 17, and the ball 17 can be any existing ball of any shape, it can be a whole ball, or It is a part of a sphere, and the sphere 17 cooperates with the first sealed cavity 3 to realize the spraying of the nozzle.

[0036] In addition, other structures of the nozzle, such as th...

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Abstract

The invention discloses a valve seat. A vacuum groove is formed in the portion, close to a nozzle hole, of the cavity wall of a first sealing cavity. By forming the vacuum groove, when a high-speed fluid medium flows to the nozzle hole in a rotating manner along the cavity wall of the first sealing cavity, the high-speed fluid medium drives air in the vacuum groove to form a cyclone, and thereforethe negative pressure state is formed; and in the cyclone forming process, the air and the fluid medium enter the nozzle hole together and are finally sprayed out in the manner of mist. In the process, part of the fluid medium can be left on part of a reverse conical surface or a spherical cambered surface structure below a sphere after the sphere and the reverse conical surface or the sphericalcambered surface make contact and are sealed, and can be taken away by means of cyclone turbulence of the air in the vacuum groove, and therefore no fluid medium is left, and the situation that because the nozzle hole is blocked after impurities are hardened and dried, the atomization effect is influenced is then reduced.

Description

technical field [0001] The invention relates to the technical field of nozzles, in particular to a valve seat and a cross-cut nozzle using the valve seat. Background technique [0002] The nozzle is one of the key parts of the EFI engine, its work will seriously affect the performance of the engine. Existing nozzles generally have a simple electromagnetic valve structure. For example, CN2016209634863 discloses a urea nozzle, which includes a housing, a valve body is provided in the housing, and a coil assembly is provided between the valve body and the housing. An adjustment sleeve and a valve core are provided in the valve body, and the valve core can slide in the valve body. A spring fixing seat is provided in the adjustment sleeve, and an elastic member is arranged between the spring fixing seat and the valve core. The front end of the spool passes through a sphere between the partition and the nozzle. The sphere is a whole sphere or a part of the sphere. cavity, the pa...

Claims

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Application Information

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IPC IPC(8): F16K1/42F16K1/14B05B7/04
CPCF16K1/42F16K1/14B05B7/0416
Inventor 袁亚飞赵典秋刘新冬汤丽吴振刘劝庞贺臣陈婷
Owner JIANGSU BATON TECH CO LTD
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