CN201858004U - Safety engine intake shutoff valve - Google Patents
Safety engine intake shutoff valve Download PDFInfo
- Publication number
- CN201858004U CN201858004U CN2010206108568U CN201020610856U CN201858004U CN 201858004 U CN201858004 U CN 201858004U CN 2010206108568 U CN2010206108568 U CN 2010206108568U CN 201020610856 U CN201020610856 U CN 201020610856U CN 201858004 U CN201858004 U CN 201858004U
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- CN
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- Prior art keywords
- valve
- engine
- stopping
- motor
- emergency
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- Expired - Fee Related
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Abstract
The utility model provides a safety engine intake shutoff valve, relates to a brake device for emergency quick stopping of an engine or stopping for reverse rotation protection, and mainly solves the problem that quick stopping fails due to residual fuel in a pipeline and inertia of the engine when the existing engine needs emergency stopping in abnormal condition or when emergency brake stopping is needed as rear-end equipment is in reverse rotation due to inertia during stopping of the engine. A T-shaped valve is arranged in a valve housing, the upper end of the valve is connected with an air inlet of the engine movably, the lower end of the valve is mounted in a cylinder in the valve housing and connected with a return spring in the cylinder, and an air inlet hole communicated with the lower end of the valve is arranged on the valve housing. A normally closed piston valve is mounted on an intake pipeline of the engine and is turned on when the engine works; the valve is driven to be closed automatically by an air flow when the engine is in emergency brake or reverse rotation, so that the engine is capable of realizing quick brake and stoppage.
Description
Technical field
The utility model relates to a kind of engine charge safety shut-off valves, relates to a kind of braking device that urgent parking fast of motor and reversal protection stop specifically.
Background technique
If multiple reasons such as motor meets with an accidet when moving, external equipment fault, dangerous inflammable gas, motor operation exception need be stopped in emergency; perhaps when engine start; the inertia of rear end equipment may reverse when starting fault or shutdown, at this moment needs emergency braking, parking.In order to address the above problem traditional method is that the mode of carrying out the fuel oil shutoff is come emergency shutdown; owing to also have the inertia of Fuel Remained and motor when fuel oil turn-offs in the pipeline; do not reach the requirement of quick shutdown; in order to prevent the motor counterrotating; realize with the mechanical mechanism of gearbox or fluid torque converter that normally its shortcoming is the cost height, increases a set of equipment more; have more more fault point, for example start the fault counter-rotating.
Summary of the invention
This novel purpose is at above-mentioned deficiency, and propose a kind of on the basis of original shutoff fuel oil, increase an air inlet shut-off valve and reach the air inlet safety shut-off valves that rapid shutdown is braked.
Technical solution of the present utility model is: the engine charge safety shut-off valves is: be provided with valve in valve body, valve is " T " font, the upper end of valve and the suction port of motor flexibly connect, the lower end of valve is installed in the interior cylindrical drum of valve body, and be connected with Returnning spring in the cylindrical drum, on valve body, be provided with the inlet hole that is connected with the valve lower end.
The utility model is that a Normally closed type piston valve is installed on the air inlet pipeline of motor, and when motor quit work, valve was in closed condition.When engine operation, because flowing of air-flow arranged, the power that air current flow overcomes spring makes valve open.Judge valve when motor needs Emergency braking, do not have new air in engine inlets and the cylinder, even remaining fuel injection can not be burnt in cylinder in the pipeline, this moment, motor can not work done, and motor overcomes inertia and shuts down.If because the counterrotating of accident motor, this moment, the airintake direction and the original direction of motor were opposite, air-flow promotes valve and closes automatically, and the increased pressure of cylinder makes the rapid brake application stoping of motor at this moment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, be provided with a valve 1 in valve body 3 of the present utility model, the shape of valve 1 is " T " font, and valve 1 is a Normally closed type piston valve, the upper end of " T " font valve 1 and the suction port of motor 5 flexibly connect, and valve 1 connects suction port 5 sealings; The lower end of " T " font valve 1 is installed in the cylindrical groove in the valve body 3, Returnning spring 2 is housed in this cylindrical groove, the lower end of valve 1 is connected with Returnning spring 2, because the effect of spring 2 can make the upper end of valve 1 closely contact Normally closed type piston valve of formation with the suction port 5 of motor; Be provided with inlet hole 4 on valve body 3, inlet hole 4 is connected with the lower end of valve 1, promptly is connected with the lower end of cylindrical groove in the valve body 3.
Working principle: suction port 5 of the present utility model is installed in the air inlet front end of motor, and valve 1 is normally closed during engine shutdown.When motor moves, the motor suck air, air produces negative pressure at valve 1 place, and valve 1 overcomes the power of spring 2, makes valve 1 leave suction port 5 and moves to suction port 5 opposite directions, and valve 1 is opened, and makes air enter motor, the motor proper functioning; When motor generation counterrotating, it is opposite with above-mentioned direction that the air-flow of motor oppositely changes, this moment, valve 1 can not be opened, and closed tightlyer at the effect lower valve 1 of backpressure, and air-flow can not be discharged by valve 1, gas in the cylinder can not be discharged, thereby makes the motor fast braking.During emergency cut-off, give the gas of 4 one pressure of inlet hole if desired, pressure is the 6-8 kilogram; this moment, valve 1 moved to suction port 5 directions, and valve 1 is closed, and intake duct forms vacuum; the fuel oil of engine spray can not burn, and motor can't do work, and motor overcomes inertia and shuts down rapidly.
Claims (1)
1. engine charge safety shut-off valves, it is characterized in that: in valve body (3), be provided with valve (1), valve (1) is " T " font, the suction port (5) of the upper end of valve (1) and motor flexibly connects, the lower end of valve (1) is installed in the interior cylindrical groove of valve body (3), and be connected with Returnning spring (2) in the cylindrical groove, on valve body (3), be provided with the inlet hole (4) that is connected with valve (1) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206108568U CN201858004U (en) | 2010-11-17 | 2010-11-17 | Safety engine intake shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206108568U CN201858004U (en) | 2010-11-17 | 2010-11-17 | Safety engine intake shutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858004U true CN201858004U (en) | 2011-06-08 |
Family
ID=44103814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206108568U Expired - Fee Related CN201858004U (en) | 2010-11-17 | 2010-11-17 | Safety engine intake shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858004U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141327A (en) * | 2014-07-23 | 2014-11-12 | 中国人民解放军第三军医大学军事预防医学院 | Desert moisture acquisition device |
| CN104355010A (en) * | 2014-11-10 | 2015-02-18 | 公安部天津消防研究所 | Leakage self-plugging method and device for storage tank pipeline accessory |
| CN111425305A (en) * | 2020-04-01 | 2020-07-17 | 广西玉柴机器股份有限公司 | Air-break valve with high safety |
-
2010
- 2010-11-17 CN CN2010206108568U patent/CN201858004U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141327A (en) * | 2014-07-23 | 2014-11-12 | 中国人民解放军第三军医大学军事预防医学院 | Desert moisture acquisition device |
| CN104141327B (en) * | 2014-07-23 | 2015-09-30 | 中国人民解放军第三军医大学军事预防医学院 | Sampler in the sand bed of a kind of desert |
| CN104355010A (en) * | 2014-11-10 | 2015-02-18 | 公安部天津消防研究所 | Leakage self-plugging method and device for storage tank pipeline accessory |
| CN111425305A (en) * | 2020-04-01 | 2020-07-17 | 广西玉柴机器股份有限公司 | Air-break valve with high safety |
| CN111425305B (en) * | 2020-04-01 | 2022-06-07 | 广西玉柴机器股份有限公司 | Air-break valve with high safety |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Safety engine intake shutoff valve Effective date of registration: 20130913 Granted publication date: 20110608 Pledgee: Bank of Hankou, Limited by Share Ltd, Xiangyang branch Pledgor: Yehoo Power Technology (Hubei) Co., Ltd. Registration number: 2013990000673 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20151117 |
|
| EXPY | Termination of patent right or utility model |