CN112728147A - Improved fuel metering valve - Google Patents

Improved fuel metering valve Download PDF

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Publication number
CN112728147A
CN112728147A CN202110064273.2A CN202110064273A CN112728147A CN 112728147 A CN112728147 A CN 112728147A CN 202110064273 A CN202110064273 A CN 202110064273A CN 112728147 A CN112728147 A CN 112728147A
Authority
CN
China
Prior art keywords
valve
armature
filter screen
electromagnet
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110064273.2A
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Chinese (zh)
Inventor
朱志杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruian Ruiluqi Auto Parts Co ltd
Original Assignee
Ruian Ruiluqi Auto Parts Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ruian Ruiluqi Auto Parts Co ltd filed Critical Ruian Ruiluqi Auto Parts Co ltd
Priority to CN202110064273.2A priority Critical patent/CN112728147A/en
Publication of CN112728147A publication Critical patent/CN112728147A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0668—Sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention relates to the technical field of metering valves, in particular to an improved fuel metering valve, which comprises an electromagnet, a mechanical slide valve arranged on the electromagnet and an armature component arranged in the electromagnet, wherein the mechanical slide valve comprises a valve seat and a valve core arranged in the valve seat, the side wall of the valve seat and the end part of the valve seat are respectively provided with an oil inlet and an oil outlet communicated with the inner cavity of the valve seat, a filter screen mounting structure is arranged in the valve core, the armature component comprises an armature body and an armature sleeve sleeved on the armature body, the armature component is arranged in the electromagnet through a mounting seat, and the mounting seat is provided with a quick-release structure convenient for the armature component to be detached, and: the metering valve is improved, the service life of the metering valve is prolonged, and the overall performance of the metering valve is improved.

Description

Improved fuel metering valve
Technical Field
The invention relates to the technical field of metering valves, in particular to an improved fuel metering valve.
Background
With the implementation of emission regulations and the increasing requirements of people on the dynamic performance of vehicles, diesel engines and other fuel systems requiring high injection pressure can be sufficient, and a high-pressure common rail system is preferred at present.
However, the existing metering valves have the following disadvantages: 1) the action stroke is large, the action frequency is high, and the lubricating effect cannot be achieved only by using diesel oil for lubrication, so that the clamping and abrasion of mechanical motion parts often occur, and the service life is influenced; 2) the existing metering valve is lack of a filter screen structure, oil directly enters the valve body from an oil inlet, the oil in the valve body is discharged from an oil discharge port, impurities in the oil can enter a plunger cavity of a high-pressure oil pump matched with the metering valve through the metering valve, the blockage is easy to occur, related parts are abraded, and the service life is influenced; 3) the movable iron core assembly is a key component in the metering valve, when the movable iron core assembly needs to be replaced, a special tool needs to be used for pulling out the valve body which is tightly matched with the shell, and if the valve body is pulled out and then pressed in again, the performance of the metering valve is unstable.
Disclosure of Invention
The invention aims to solve the technical problem of providing an improved fuel metering valve, aiming at the defects of the prior art, and improving the metering valve, prolonging the service life of the metering valve and improving the overall performance of the metering valve.
In order to achieve the purpose, the invention provides the following technical scheme: an improved fuel metering valve, comprising an electromagnet, a mechanical slide valve arranged on the electromagnet, and an armature component arranged inside the electromagnet, and is characterized in that: the mechanical slide valve comprises a valve seat and a valve core installed in the valve seat, an oil inlet and an oil outlet which are communicated with an inner cavity of the valve seat are respectively formed in the side wall of the valve seat and the end portion of the valve seat, a filter screen installation structure is arranged in the valve core, an armature part comprises an armature body and an armature sleeve sleeved on the armature body, the armature part is arranged in the electromagnet through an installation seat, and a quick-release structure which is convenient for the armature part to be detached is arranged on the installation seat.
The present invention having the above features: set up filter screen mounting structure in the case, set up the filter screen, can filter the fuel through the metering valve, prevent that the foreign particles from wearing and tearing to relevant part, effectively prolong the life of metering valve, set up the quick detach structure who makes things convenient for armature part to dismantle on the mount pad, the follow-up maintenance of being convenient for reduces the influence to other parts when the dismouting simultaneously.
The invention further comprises the following steps: the installation structure comprises a screw hole formed in the installation seat, a nut matched with the screw hole for use is arranged in the screw hole, an installation groove for installing the armature body is formed in one end, facing the inside of the electromagnet, of the nut, and a straight groove is formed in one end, far away from the inside of the electromagnet, of the nut.
The present invention having the above features: the nut is connected with the screw hole through threads, the straight groove is arranged to facilitate the disassembly of the nut, the armature component can be replaced only by unscrewing the nut, the operation is simple, and the time is saved.
The invention further comprises the following steps: the filter screen mounting structure comprises a filter screen arranged inside a valve core, wherein a slot for mounting the filter screen and a seal groove for mounting a seal ring are formed in the valve core, a seal gasket is arranged at the bottom of the slot, the seal gasket is arranged inside the filter screen and abuts against the inner wall of the filter screen, and the inner wall of the seal gasket abuts against the outer wall of the filter screen.
The present invention having the above features: the filter screen is inserted into the valve core, and the sealing gasket and the sealing ring have a limiting effect on the filter screen in the horizontal direction.
The invention further comprises the following steps: the end part of the armature body is provided with a step for mounting the armature sleeve, and the step are in interference fit.
The present invention having the above features: the armature body and the armature sleeve are arranged in a split mode, the integral wear-resisting property can be effectively improved only by improving the hardness of the armature sleeve at the friction position, the armature sleeve is convenient to precisely machine and thermally process, the service life of the metering valve is effectively prolonged, and meanwhile the manufacturing cost is reduced.
The invention further comprises the following steps: and the outer layer of the armature sleeve is coated with an antifriction coating.
The present invention having the above features: the wear-resistant coating can reduce friction force, thereby reducing wear and prolonging the service life of the armature sleeve.
The invention further comprises the following steps: the nut is provided with a sealing ring, and the sealing ring is positioned between the nut and the mounting seat.
The present invention having the above features: the sealing washer has sealed effect to nut and mount pad, avoids impurity to get into inside.
The invention further comprises the following steps: and a buffer spring connected with the armature body is arranged in the mounting groove.
The present invention having the above features: a buffer spring is arranged between the armature body and the nut, so that the impact force of the armature body on the nut during working is reduced.
The invention further comprises the following steps: a clamping groove for installing a clamping ring is formed in the valve core, and the clamping ring is arranged above the filter screen and abuts against the end portion of the filter screen.
The present invention having the above features: the clamping ring exerts an axial force on the filter screen, so that the filter screen is matched with the slot to more closely prevent the filter screen from falling off, and the sealing performance is improved by better matching with the sealing gasket.
The invention further comprises the following steps: the side wall of the valve core is provided with a throttling hole communicated with the inner cavity, the end part of the valve core is provided with a hole cavity communicated with the throttling hole, and the throttling hole is arranged on the side wall covered by the filter screen.
The present invention having the above features: when fluid flowed in from the oil inlet of disk seat, need just can get into the case inner chamber through the orifice, then fluid flowed out from the oil drain port of disk seat, at the removal in-process of case, realized the regulation to orifice and the coincidence area size of oil inlet, realized promptly to entering into the regulation of the inside fluid flow of case, the realization is to the control of fluid discharge capacity.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of an armature component according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a filter screen mounting structure according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a quick release structure according to an embodiment of the invention.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
An improved fuel metering valve as shown in fig. 1-4 comprises an electromagnet 1, a mechanical slide valve 2 mounted on the electromagnet 1, and an armature component 3 mounted inside the electromagnet 1, wherein the mechanical slide valve 2 comprises a valve seat 4 and a valve core 5 mounted in the valve seat 4, an oil inlet 41 and an oil outlet 42 communicated with an inner cavity of the valve seat 4 are respectively arranged on a side wall of the valve seat 4 and an end part of the valve seat 4, a filter screen mounting structure is arranged in the valve core 5, the armature component 3 comprises an armature body 31 and an armature sleeve 32 sleeved on the armature body 31, the armature component 3 is arranged in the electromagnet 1 through a mounting seat 6, and a quick-release structure facilitating the detachment of the armature component 3 is arranged on the mounting seat 6.
The mounting structure is including setting up screw 61 on mount pad 6, be equipped with in the screw 61 rather than supporting nut 7 that uses, nut 7 is equipped with the mounting groove 71 that supplies armature body 31 installation towards the inside one end of electro-magnet 1, is equipped with the buffer spring 11 of being connected with armature body 31 in the mounting groove 71, and the inside one end of electro-magnet 1 is kept away from to nut 7 is equipped with straight line groove 72, installs sealing washer 9 on the nut 7, and sealing washer 9 is located between nut 7 and the mount pad 6.
The filter screen mounting structure is including setting up the filter screen 8 in case 5 inside, be equipped with the slot 51 that supplies the installation of filter screen 8 in the case 5, the seal groove 52 of supplying the installation of sealing washer 9, slot 51 bottom is equipped with sealed pad 10, sealed pad 10 is arranged in filter screen 8 inside and is supported with the inner wall of filter screen 8, the inner wall of sealing washer 9 offsets with the outer wall of filter screen 8, be equipped with the draw-in groove 53 of installation snap ring 12 in the case 5, snap ring 12 is arranged in filter screen 8 top and is supported rather than the tip in, case 5 lateral wall is equipped with the orifice 54 that switches on with the inner chamber, case 5 tip is equipped with the vestibule 55 that switches on with orifice 54, orifice 54 sets up the lateral wall that is covered by filter screen 8, filter screen 8.
The end of the armature body 31 is provided with a step 311 for installing the armature sleeve 32, the armature sleeve 32 and the step are in interference fit, and the outer layer of the armature sleeve 32 is coated with an antifriction coating.

Claims (9)

1. An improved fuel metering valve, comprising an electromagnet, a mechanical slide valve arranged on the electromagnet, and an armature component arranged inside the electromagnet, and is characterized in that: the mechanical slide valve comprises a valve seat and a valve core installed in the valve seat, an oil inlet and an oil outlet which are communicated with an inner cavity of the valve seat are respectively formed in the side wall of the valve seat and the end portion of the valve seat, a filter screen installation structure is arranged in the valve core, an armature part comprises an armature body and an armature sleeve sleeved on the armature body, the armature part is arranged in the electromagnet through an installation seat, and a quick-release structure which is convenient for the armature part to be detached is arranged on the installation seat.
2. An improved fuel metering valve as set forth in claim 1 wherein: the installation structure comprises a screw hole formed in the installation seat, a nut matched with the screw hole for use is arranged in the screw hole, an installation groove for installing the armature body is formed in one end, facing the inside of the electromagnet, of the nut, and a straight groove is formed in one end, far away from the inside of the electromagnet, of the nut.
3. An improved fuel metering valve as set forth in claim 1 wherein: the filter screen mounting structure comprises a filter screen arranged inside a valve core, wherein a slot for mounting the filter screen and a seal groove for mounting a seal ring are formed in the valve core, a seal gasket is arranged at the bottom of the slot, the seal gasket is arranged inside the filter screen and abuts against the inner wall of the filter screen, and the inner wall of the seal gasket abuts against the outer wall of the filter screen.
4. An improved fuel metering valve as set forth in claim 1 wherein: the end part of the armature body is provided with a step for mounting the armature sleeve, and the step are in interference fit.
5. An improved fuel metering valve as set forth in claim 1 wherein: and the outer layer of the armature sleeve is coated with an antifriction coating.
6. An improved fuel metering valve as set forth in claim 2 wherein: the nut is provided with a sealing ring, and the sealing ring is positioned between the nut and the mounting seat.
7. An improved fuel metering valve as set forth in claim 2 wherein: and a buffer spring connected with the armature body is arranged in the mounting groove.
8. An improved fuel metering valve as set forth in claim 3 wherein: a clamping groove for installing a clamping ring is formed in the valve core, and the clamping ring is arranged above the filter screen and abuts against the end portion of the filter screen.
9. An improved fuel metering valve as set forth in claim 3 wherein: the side wall of the valve core is provided with a throttling hole communicated with the inner cavity, the end part of the valve core is provided with a hole cavity communicated with the throttling hole, and the throttling hole is arranged on the side wall covered by the filter screen.
CN202110064273.2A 2021-01-18 2021-01-18 Improved fuel metering valve Pending CN112728147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110064273.2A CN112728147A (en) 2021-01-18 2021-01-18 Improved fuel metering valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110064273.2A CN112728147A (en) 2021-01-18 2021-01-18 Improved fuel metering valve

Publications (1)

Publication Number Publication Date
CN112728147A true CN112728147A (en) 2021-04-30

Family

ID=75592254

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110064273.2A Pending CN112728147A (en) 2021-01-18 2021-01-18 Improved fuel metering valve

Country Status (1)

Country Link
CN (1) CN112728147A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113418010A (en) * 2021-06-17 2021-09-21 韩松 Hydrogen spraying valve assembly structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113418010A (en) * 2021-06-17 2021-09-21 韩松 Hydrogen spraying valve assembly structure

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