CN219082387U

CN219082387U - Electromagnetic valve iron core of fuel common rail injector

Info

Publication number: CN219082387U
Application number: CN202223143039.8U
Authority: CN
Inventors: 刘兴炜
Original assignee: Pinghu Geor Chi Electronics Co ltd
Current assignee: Pinghu Geor Chi Electronics Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-26
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a solenoid valve iron core of a fuel common rail injector, which comprises a first iron core, wherein a second iron core is arranged in the first iron core, a plurality of sliding devices are inserted and arranged on the outer edge surface of the second iron core, grooves for installing the sliding devices are formed in the second iron core, screw threads for fixing the sliding devices are spirally connected to the upper end surface of the second iron core, the sliding devices comprise long plates which are slidably arranged in the second iron core, a plurality of balls rolling in the long plates are arranged in the long plates, long grooves for rolling friction of the balls are formed in the first iron core, and the solenoid valve iron core of the fuel common rail injector replaces sliding friction with rolling friction, so that loss caused by friction force is reduced.

Description

Electromagnetic valve iron core of fuel common rail injector

Technical Field

The utility model belongs to the technical field of fuel injectors, and particularly relates to an electromagnetic valve iron core of a fuel common rail injector.

Background

A fuel injector is a valve that delivers gas or diesel fuel in proper quantities to the correct location at the proper time, mixes with air and burns in the engine where an electronically controlled fuel injection system is mixed with air prior to compression and ignition of a cylinder of a conventional carburettor engine, which system has advantages over a fuel system that are similar to a mechanically continuous injection system, and consists of two main parts, namely an oil circuit and an electronic control circuit.

The valve core of the electromagnetic valve comprises a static iron core and a movable iron core, wherein the static iron core and the movable iron core are components for generating electromagnetic attraction in the electromagnetic valve, and an external coil is electrified to realize magnetic force amplification through the static iron core and the movable iron core, so that the electromagnetic valve is switched on and off.

The electromagnetic valve iron core of the existing fuel common rail injector, the static iron core and the movable iron core generate larger sliding friction force, and the valve opening capacity is further affected.

Disclosure of Invention

The utility model aims to provide an electromagnetic valve iron core of a fuel common rail injector, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a fuel common rail injector solenoid valve iron core, includes first iron core, the internally mounted of first iron core has the second iron core, a plurality of slider are installed in the outer fringe face grafting of second iron core, offer the groove that supplies a plurality of slider to install on the second iron core, just the up end screwed connection of second iron core has the screw thread of screwing up of fixed slider, slider includes the long board of slidable mounting in the second iron core, be provided with a plurality of spheroids at its inside rolling in the long inboard, be convenient for detect the maintenance.

Further, a long groove for rolling friction of the ball body is formed in the first iron core, and the friction force is reduced from sliding friction to rolling friction.

Further, the bottom of second iron core is constructed with the plectane, be constructed with a plurality of cylinders that extend into in the first iron core on the plectane, set up the circular slot that supplies a plurality of cylinders to slide grafting on the first iron core, be convenient for reset the second iron core.

Further, the bottom of second iron core extends the lower terminal surface of first iron core, just second iron core extension's outer fringe face has cup jointed the spring, the one end of spring with the lower terminal surface butt of second iron core, the other end of spring with the up end butt of plectane, be convenient for later maintenance change.

Further, the bottom of screwing up the spiral shell extends into in the second iron core, screw up spiral shell bottom outer fringe face with the inside screw thread cooperation of second iron core is convenient for later stage maintenance change slider.

Compared with the prior art, the utility model has the following beneficial effects: the sliding device is arranged on the second iron core, and the sliding friction is replaced by the rolling friction of a plurality of spheres arranged in the long plate and the long groove in the first iron core, so that the friction force is reduced, and the valve opening capacity is improved; through the plectane of installing in second iron core bottom, reset the second iron core by spring butt first iron core and plectane, be convenient for detect the maintenance to it.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1 in accordance with the present utility model;

fig. 3 is a schematic structural view of the sliding device in fig. 2 according to the present utility model.

In the figure: 1. a first iron core; 101. a long groove; 102. a circular groove; 2. a second iron core; 201. screwing; 3. a sliding device; 301. a long plate; 302. a sphere; 4. a circular plate; 401. a cylinder; 402. and (3) a spring.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-3, a solenoid valve core of a fuel common rail injector comprises a first core 1, a second core 2 is installed in the first core 1, a plurality of sliding devices 3 are installed on the outer edge surface of the second core 2 in a plugging manner, grooves for installing the sliding devices 3 are formed in the second core 2, screw threads 201 for fixing the sliding devices 3 are spirally connected to the upper end surface of the second core 2, when the solenoid valve core is specifically implemented, the screw threads 201 are opened, the sliding devices 3 can be pulled out, the sliding devices 3 comprise a long plate 301 which is slidably installed in the second core 2, a plurality of balls 302 rolling in the long plate 301 are arranged in the long plate 301, and detection and maintenance are performed.

The first iron core 1 is provided with a long groove 101 for rolling friction of the ball 302.

The bottom end of the second iron core 2 is configured with a circular plate 4, a plurality of cylinders 401 extending into the first iron core 1 are configured on the circular plate 4, and the first iron core 1 is provided with a circular groove 102 for sliding insertion of the plurality of cylinders 401.

The bottom end of the second iron core 2 extends out of the lower end face of the first iron core 1, the outer edge face of the extending portion of the second iron core 2 is sleeved with a spring 402, one end of the spring 402 is abutted with the lower end face of the second iron core 2, and the other end of the spring 402 is abutted with the upper end face of the circular plate 4.

Wherein, the bottom of the screw 201 extends into the second iron core 2, and the outer edge surface of the bottom of the screw 201 is matched with the internal thread of the second iron core 2.

Working principle: when the solenoid valve coil is electrified, the first iron core 1 moves back and forth on the outer edge surface of the second iron core 2, the ball 302 rolls in the long groove 101, conventional sliding friction is replaced, friction force is reduced, and when the power is stopped, the spring 402 drives the second iron core 2 to reset.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fuel common rail injector solenoid valve iron core, includes first iron core (1), its characterized in that: the novel iron core is characterized in that a second iron core (2) is arranged in the first iron core (1), a plurality of sliding devices (3) are inserted into the outer edge surface of the second iron core (2), grooves for installing the sliding devices (3) are formed in the second iron core (2), screw threads (201) for fixing the sliding devices (3) are spirally connected to the upper end face of the second iron core (2), the sliding devices (3) comprise long plates (301) which are slidably arranged in the second iron core (2), and a plurality of balls (302) rolling in the long plates (301) are arranged.

2. A fuel common rail injector solenoid valve core as set forth in claim 1, wherein: an elongated slot (101) for rolling friction of the ball body (302) is formed in the first iron core (1).

3. A fuel common rail injector solenoid valve core as set forth in claim 1, wherein: the bottom of second iron core (2) is constructed with plectane (4), be constructed with cylinder (401) in a plurality of extension first iron cores (1) on plectane (4), offer circular slot (102) that supply a plurality of cylinders (401) slip grafting on first iron cores (1).

4. A fuel common rail injector solenoid valve core as set forth in claim 3 wherein: the bottom of second iron core (2) extends the lower terminal surface of first iron core (1), just outer fringe face of second iron core (2) extension has cup jointed spring (402), the one end of spring (402) with the lower terminal surface butt of second iron core (2), the other end of spring (402) with the up end butt of plectane (4).

5. A fuel common rail injector solenoid valve core as set forth in claim 1, wherein: the bottom end of the screwing screw (201) extends into the second iron core (2), and the outer edge surface of the bottom end of the screwing screw (201) is matched with the internal thread of the second iron core (2).