CN113586304B - A diesel engine air starting valve with starting and testing functions - Google Patents
A diesel engine air starting valve with starting and testing functions Download PDFInfo
- Publication number
- CN113586304B CN113586304B CN202111030783.4A CN202111030783A CN113586304B CN 113586304 B CN113586304 B CN 113586304B CN 202111030783 A CN202111030783 A CN 202111030783A CN 113586304 B CN113586304 B CN 113586304B
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- Prior art keywords
- sleeve
- valve body
- valve
- starting
- compressed air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1013—Adaptations or arrangements of distribution members the members being of the poppet valve type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/123—Fluid connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid-Driven Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
本发明公开了一种具有起动和测试功能的柴油机空气起动阀，包括：阀体，其内部具有容纳腔；阀组件，其设置在所述容纳腔内；套筒，其设置在所述阀体和所述阀组件之间；螺帽，其螺纹连接在所述阀体的一端；调整螺钉，其一端穿过所述螺帽后抵靠在所述套筒组件上；阀体压缩空气出气口，其开设在所述阀体上；阀体高压空气进气口，其开设在所述阀体上；套筒高压空气进气口，其开设在所述套筒上；套筒高压空气出气口，其开设在所述套筒上；其中，所述阀体进气口与所述套筒进气口选择性连通，所述阀体出气口与所述套筒出气口选择性连通。本发明通过设置在阀体内的套筒组件与阀组件的相互配合，能够实现空气起动功能与气缸压缩压力检测功能切换。
The present invention discloses a diesel engine air starting valve with starting and testing functions, comprising: a valve body, which has an accommodating cavity inside; a valve assembly, which is arranged in the accommodating cavity; a sleeve, which is arranged between the valve body and the valve assembly; a nut, which is threadedly connected to one end of the valve body; an adjusting screw, one end of which passes through the nut and abuts against the sleeve assembly; a valve body compressed air outlet, which is opened on the valve body; a valve body high-pressure air inlet, which is opened on the valve body; a sleeve high-pressure air inlet, which is opened on the sleeve; a sleeve high-pressure air outlet, which is opened on the sleeve; wherein the valve body inlet is selectively connected to the sleeve inlet, and the valve body outlet is selectively connected to the sleeve outlet. The present invention can realize the switching between the air starting function and the cylinder compression pressure detection function through the mutual cooperation of the sleeve assembly and the valve assembly arranged in the valve body.
Description
Technical Field
The invention relates to a pneumatic valve, in particular to a diesel engine air starting valve with starting and testing functions.
Background
For heavy vehicles, an air starting method is generally adopted, high-pressure air is supplied to a cylinder by a high-pressure air cylinder, and a piston is pushed to move so as to drive a diesel engine crankshaft to rotate, so that starting is realized. The conventional air starting valve is only a one-way valve, high-pressure air enters the air cylinder from the air bottle through the starting valve during starting, and when the diesel engine works normally, the starting valve is closed, and the air cylinder is closed and airtight.
With the use of the diesel engine, the compression pressure in the cylinder reverse dragging process is gradually reduced due to factors such as abrasion, and the technical condition assessment and the residual service life prediction of the diesel engine can be performed by detecting the air compression pressure of the cylinder. The conventional method requires disassembly of an air starting valve, and mounting of a pressure sensor at the starting valve to detect cylinder compression pressure. The traditional method for detecting the compression pressure of the cylinder by using the detachable air valve has two problems:
1. In the reverse towing process of the diesel engine, the temperature of the compressed air is different due to different reverse towing rotating speeds and different ambient temperatures, and the compression pressure values detected under the condition that the diesel engine is in the same technical state are different. Thus, detecting only the air compression pressure value will lead to a misalignment of the state of the art assessment and the residual life prediction, and the compression pressure value must be corrected by detecting the compressed air temperature at the same time.
2. Because the space of the vehicle power cabin is compact, the disassembly of the air starting valve of the diesel engine on the real vehicle is difficult, the installation of the pressure sensor is difficult, the cylinder compression pressure detection process is long in time consumption and needs to be operated by professional technicians.
Disclosure of Invention
The invention designs and develops a diesel engine air starting valve with starting and testing functions, and the purposes of switching between an air starting function and a cylinder compression pressure detection function and realizing quick and convenient detection are realized through the mutual matching of a sleeve assembly and a valve assembly which are arranged in the valve body.
The technical scheme provided by the invention is as follows:
A diesel air starting valve with start-up and test comprising:
A valve body having a receiving chamber therein;
a valve assembly disposed within the receiving chamber;
a sleeve disposed between the valve body and the valve assembly;
the nut is sleeved at one end of the valve body;
An adjusting screw, one end of which passes through the nut and then abuts against the sleeve assembly;
the valve body compressed air outlet is formed in the valve body;
The valve body high-pressure air inlet is formed in the valve body and is positioned at one side of the compressed air outlet;
The sleeve high-pressure air inlet is formed in the sleeve;
The sleeve high-pressure air outlet is arranged on the sleeve and is positioned at one side of the sleeve high-pressure air inlet;
The adjusting screw can move along the axial direction of the nut, so that the sleeve assembly and the valve assembly are pushed to move along the axial direction of the valve body, the valve body air inlet is selectively communicated with the sleeve air inlet, and the valve body air outlet is selectively communicated with the sleeve air outlet.
Preferably, one end of the valve body is provided with external threads.
Preferably, the method further comprises:
and at least two baffles are radially arranged on the inner wall of the valve body and close to the adjusting screw.
Preferably, the method further comprises:
One end of the air valve is provided with a lug;
characterized in that the valve assembly comprises:
The air valve spring is arranged on the air valve, one end of the air valve spring is abutted against the partition plate, and the other end of the air valve spring is abutted against the protruding block.
Preferably, the method further comprises:
at least two longitudinal openings are axially formed at one end of the sleeve and are matched with the partition plate.
Preferably, the method further comprises:
and one end of the sleeve spring is abutted against the valve body, and the other end of the sleeve spring is abutted against the end face of the other end of the sleeve.
Preferably, the nut has a nut internal thread.
Preferably, the adjusting screw includes:
the adjusting screw is provided with screw external threads and is arranged at the internal threads of the screw cap in a matching manner;
and the adjusting end face is perpendicular to the screw rod.
The beneficial effects of the invention are as follows:
The air starting valve of the diesel engine with the starting and testing functions has the function of a one-way valve and is used for starting the diesel engine, and meanwhile, the air starting valve is provided with a starting valve opening device and a high-pressure air outlet, so that the air starting valve can be opened in the reverse towing process of the diesel engine and high-pressure air can be guided to flow out of the air starting valve, and the high-pressure air pressure and temperature can be detected. Besides, the air starting valve provided by the invention does not need to be dismantled when the compression pressure of the air cylinder is detected, and the air starting function and the compression pressure detection function of the air cylinder are switched through the built-in sleeve, so that the purpose of rapid and convenient detection is realized.
Drawings
Fig. 1 is a schematic structural view of a valve body according to the present invention.
Fig. 2 is a schematic view of a valve body and a valve assembly according to the present invention.
Fig. 3 is a schematic view of a valve body and sleeve assembly according to the present invention.
Fig. 4 is a schematic diagram of a high-pressure air-started engine state according to the present invention.
Fig. 5 shows a state of monitoring the temperature of compressed air according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
As shown in fig. 1 to 5, the present invention provides a diesel engine air starting valve with starting and testing functions, comprising a valve body 1, an external thread 11, a valve body compressed air outlet 12, a valve body high pressure air inlet 13, a valve assembly 2, a gas valve 21, a gas valve spring 22, a sleeve assembly 3, a sleeve 31, a sleeve spring 32, a sleeve high pressure air inlet 311, a sleeve high pressure air outlet 312, a longitudinal opening, a nut assembly 4, a nut 41, and an adjusting screw 42.
As shown in fig. 1-3, the diesel engine air starting valve comprises a valve body 1, a valve assembly 2, a sleeve assembly 3 and a nut assembly 4, wherein a containing cavity is formed in the valve body 1, one end of the valve body 1 is provided with an external thread 11, a valve body compressed air outlet 12 and a valve body high-pressure air outlet 13 are sequentially formed in the valve body 1 along the axial direction, the valve body high-pressure air outlet 13 is positioned on one side of the valve body compressed air outlet 12, the valve assembly 2 is arranged in the containing cavity of the valve body 1, the sleeve assembly 3 is arranged between the valve body 1 and the valve assembly 2, a sleeve high-pressure air inlet 311 and a sleeve high-pressure air outlet 312 are sequentially formed in the sleeve assembly 3 along the axial direction, the nut 41 is provided with an internal thread and is matched with the external thread 11, one end of an adjusting screw 42 is abutted against one end of the sleeve assembly 3 after passing through the nut, and the adjusting screw 42 can axially move along the nut 41 so as to push the sleeve assembly 3 and the valve assembly 2 to axially move along the valve body 1, so that the valve body compressed air inlet 13 is selectively communicated with the sleeve high-pressure air inlet 311.
The valve body 1 comprises an external thread 11, a valve body compressed air outlet 12, a valve body high-pressure air inlet 13 and a partition plate 14, wherein at least two partition plates 1 are arranged on the inner wall of the valve body 1 along the radial direction, and the external thread is used for installing the valve body 1 to an air starting hole of a diesel engine. The valve body compressed air outlet is used for leading out in-cylinder compressed air in the reverse towing process of the diesel engine, temperature and pressure measurement is carried out, and the valve body high-pressure air inlet 13 is used for leading in high-pressure air of a high-pressure air cylinder, so that the high-pressure air enters the air cylinder to start the diesel engine.
The valve assembly 2 comprises a valve 21 and a valve spring 22, wherein the valve 21 is arranged in a sleeve 31, one end of the valve 21 is provided with a lug, the sealing surface of the other end of the valve is matched with the sealing surface of the valve body 1, one end of the valve spring 22 is propped against and supported on the lug, the other end of the valve spring is propped against and supported on a baffle plate 14 of the valve body, and the sealing surface of the valve 21 is contacted with the sealing surface of the valve body 1 by the restoring force of the valve spring 22 to block an air path.
The sleeve assembly 3 comprises a sleeve 31 and a sleeve spring 32, wherein a sleeve high-pressure air inlet 311 and a sleeve high-pressure air outlet 312 are sequentially formed in the sleeve 31 along the axial direction, the sleeve high-pressure air outlet 312 is positioned on one side of the sleeve high-pressure air inlet 311, at least two longitudinal openings 313 are formed in one end of the sleeve 31 along the axial direction, one end of the sleeve spring 32 is propped against and supported on the valve body 1, the other end of the sleeve spring 32 is propped against the end face of the other end of the sleeve 31, and the longitudinal openings 313 are matched with the partition 14, so that the sleeve 31 can partially penetrate through the valve body partition 14 to axially move along the valve body.
In the present invention, as one preferable, the number of the partition 14 and the longitudinal opening 313 is two.
The nut assembly 4 comprises a nut 41 and an adjusting screw 42, wherein the adjusting screw 42 comprises a screw rod and an adjusting end face, the adjusting end face is vertically arranged at one end of the screw rod, the nut 41 is provided with a nut internal thread, and the screw rod is provided with a screw rod external thread which is matched with the nut internal thread, so that the adjusting screw 42 can move in the nut 41 along the axial direction.
When the adjusting screw 42 is in the initial position, as shown in fig. 4, the sleeve high-pressure air inlet 311 on the sleeve 31 is communicated with the valve body high-pressure air inlet 13, the high-pressure air enters the valve body 1 when the power system is started, the air valve 21 is pushed to enter the cylinder to start the engine, the position of the adjusting screw 42 in the nut 41 is changed, the sleeve high-pressure air outlet 312 on the sleeve 31 is communicated with the valve body compressed air outlet 12, meanwhile, the sealing surface of the air valve 21 is separated from the sealing surface of the valve body 1, and the in-cylinder compressed air flows out of the valve body 1 through the sleeve high-pressure air outlet 312 and the valve body compressed air outlet 12, and at this time, the pressure and the temperature of the compressed air can be detected by the pressure and temperature sensor, as shown in fig. 5.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030783.4A CN113586304B (en) | 2021-09-03 | 2021-09-03 | A diesel engine air starting valve with starting and testing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030783.4A CN113586304B (en) | 2021-09-03 | 2021-09-03 | A diesel engine air starting valve with starting and testing functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113586304A CN113586304A (en) | 2021-11-02 |
| CN113586304B true CN113586304B (en) | 2025-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111030783.4A Active CN113586304B (en) | 2021-09-03 | 2021-09-03 | A diesel engine air starting valve with starting and testing functions |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215761997U (en) * | 2021-09-03 | 2022-02-08 | 中国人民解放军陆军装甲兵学院 | Diesel engine air starting valve with starting and testing functions |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1550633A1 (en) * | 1965-12-30 | 1969-09-04 | Zd Y Prumyslove Autamatizace N | Hydraulic control valve |
| SE421082B (en) * | 1978-04-11 | 1981-11-23 | Nordstjernan Rederi Ab | DEVICE FOR PNEUMATIC START VALVES FOR DIESEL ENGINES |
| CN102720843B (en) * | 2012-06-04 | 2013-07-10 | 西安交通大学 | Large-diameter proportional pneumatic valve directly driven by alternating-current servo motor |
| JP6254934B2 (en) * | 2014-12-26 | 2017-12-27 | ヤンマー株式会社 | engine |
| CN205260892U (en) * | 2015-11-26 | 2016-05-25 | 宁波利德自动化设备制造有限公司 | Pneumatic limit valve |
| CN107061398B (en) * | 2016-12-20 | 2018-05-22 | 华中科技大学 | A kind of high-pressure high-flow electric-gas servo proportion |
| JP2019039541A (en) * | 2017-08-29 | 2019-03-14 | 日本電産トーソク株式会社 | Hydraulic control device |
| CN111336018B (en) * | 2020-03-31 | 2021-06-08 | 中国航发动力股份有限公司 | Electromagnetic valve switch of slide valve structure for purging fuel oil |
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2021
- 2021-09-03 CN CN202111030783.4A patent/CN113586304B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215761997U (en) * | 2021-09-03 | 2022-02-08 | 中国人民解放军陆军装甲兵学院 | Diesel engine air starting valve with starting and testing functions |
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| CN113586304A (en) | 2021-11-02 |
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