CN101011928A - Automatic discharging and air-changing device for exhaust gas in passenger car - Google Patents
Automatic discharging and air-changing device for exhaust gas in passenger car Download PDFInfo
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- CN101011928A CN101011928A CN 200710063884 CN200710063884A CN101011928A CN 101011928 A CN101011928 A CN 101011928A CN 200710063884 CN200710063884 CN 200710063884 CN 200710063884 A CN200710063884 A CN 200710063884A CN 101011928 A CN101011928 A CN 101011928A
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- exhaust gas
- changing device
- passenger car
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Abstract
Small and limited space of passenger cars is harmful for the health of passengers with less fresh air and increasing exhaust. The only way to let the exhaust out is to open the window. It will be too cold to open windows in winter, and the air conditioner not functioning well if the window is open. The automatic car waste gas exhaust changing device is installed on the body of the car with air collecting duct, using the relative motion of air, allowing the air going through the channel with various flowing speed and static pressure of various cross sections, with smaller cross section, bigger flowing speed, lower static pressure, bigger vacuum and allowing the discharge of exhaust gas inside vehicles. With fan inlet complementing fresh air, it realizes the automatic air changing, keeping freshness of air inside the compartment.
Description
Technical field the present invention relates to the fluid mechanics and the automotive air-conditioning system of physics.
Background technology is present, and the waste gas in the manned vehicle such as small passenger car, motorcoach, city motor bus, trolley coach and rail vehicles for transporting passengers, car is discharged and all leaned on vehicle window or skylight.Yet opening vehicle window goes out the outer fresh air of car by waste gas in the car and enters and must increase resistance to motion, energy resource consumption is increased, and this resistance is directly proportional with the speed of a motor vehicle, and the power consumption of the high more increase of the speed of a motor vehicle is many more, allows high wind blow on window people from limit the head simultaneously and also do not feel better on the face; To the summer in winter, a lot of passenger vehicles all use air-conditioning to regulate the lifting of vehicle interior temperature, and are well-known, use air-conditioning will close vehicle window tight, allow Che Nei and car outer air completely cut off and do not circulate, air can only carry out inner loop by blowing engine in the car, vehicle interior temperature is raise or reduction.Though a/c system also has vent window can enter the outer fresh air of car, air-conditioning generally all is installed near the driving engine or on the roof, does not have the waste discharge gas port, and waste gas is discharged difficulty in the car.It is middle because of moving air is arranged to travel, the passenger vehicle automotive exharst gas of good seal is few into the car, the waste gas time weak point that the few human body of small passenger car seat people is discharged is not felt, the oxygen that the interior people of the motorcoach that the seat people is many sucks can be fewer and feweri, the waste gas that carbon dioxide of breathing out and human body produce can be poly-more many more, the ventilation of not windowing for a long time, everyone is breathing the hybrid cycle waste gas that so much people repeatedly breathes and discharges repeatedly, well imagine, such vitiated air contains how many germs and objectionable impurities, and the people is very big to health hazard in such environment.So booking-clerk also can will be held a little while vehicle window fresh air all after a while though turn on the aircondition summer in winter.But, to open a little while vehicle window and can only discharge seldom waste gas few new gas of coming in, most of waste gas still continue to be breathed repeatedly by people in the car in car.
The sealing of some vehicles is bad, and engine exhaust makes people's giddy into the car, feels sick, the parking rear engine turns round for a long time (idling or use air-conditioning) carbon monoxide hazard even death (closing the vehicle window lethargic sleep dead incident of suffocating of poisoning in the past of enjoying the cool of turning on the aircondition tight because of sky heat in small passenger car according to existing many of media report) can occur.
Summary of the invention the present invention is directed to the problems referred to above that existing various passenger vehicles exist, provide a kind of simple in structure, the do not consume energy automatic discharging and air-changing device for exhaust gas in passenger car in source its objective is to solve the discharge problem that Bus window is closed the waste gas that produces in the car of back, makes that air keeps pure and fresh in the car.
Above-mentioned purpose of the present invention is achieved in that physically a kind of " suction effect " (also claim difference suction effect), and utilizing exactly increases flow rate of fluid and produce suction effect to surrounding liquid or gas.According to Bernou1li equation, when fluid during by narrow place its flow velocity increase narrow place pressure and reduce, the pressure at narrow place is just less than the barometric pressure in the external world in the fluid, and the liquid of container or gas will be drunk up and go with the fluid ejection.
Collection wind airflow duct is installed on passenger vehicle, and the Venturi tube that channel cross-sectional area changes is vertically made in its stage casing, and waste gas suction pipe upper end spout communicates in Venturi tube near the narrowest place, communicates in waste gas suction pipe lower end suction inlet and the car.After starting, just causes by passenger vehicle the relative motion of passenger vehicle and air, atmosphere will flow through airflow duct and produce " suction effect ", outside the automatic sucking-off car of waste gas in the car, simultaneously, realize the purpose of taking a breath automatically in the passenger vehicle by constantly replenishing fresh air in the car (general passenger vehicle all has vent window, a/c system also to have fan inlet to communicate with atmosphere) with vent window that car is interlinked to the outside.
Because existing passenger vehicle need be opened vehicle window and could discharge the waste gas that produces in the car, after having adopted the present invention, need not to open vehicle window just can in time discharge the waste gas that constantly produces in the passenger vehicle outside the car, and the refluence phenomenon of cold air from exhausr port can not appear, cold air can pour into a face and a miserable problem of blowing the people in the car voluntarily when having overcome existing passenger vehicle and open vehicle window or skylight exhaust; Can also match with ventilation of passenger train admission port or a/c system admission port, keep with fresh air in the car, protection people's health.The present invention is simple in structure, is convenient to make, and the original coach structure also need not to change, and installs also simple and convenient especially.
The description of drawings diagram is that the present invention is installed in scheme drawing on the motorcoach.
Among the figure 1, passenger vehicle 2, fan inlet 3, airflow duct 4, Venturi tube 5, waste gas suction pipe 6, waste gas throttle gate
The present invention is further described below in conjunction with drawings and embodiments for the specific embodiment.
The present invention will produce relative motion with atmosphere after utilizing vehicle take-offs, if load onto collection wind air conducting pipeline onboard, just has air to flow through in the pipeline.According to the sharp equation of bernoulli, learn from fluid mechanics.When all fluids (gas or liquid) flowed in pipeline, if pipeline sectional area difference everywhere, the flowing velocity when then fluid is flowed through everywhere also was different with static pressure, the sectional area little part that heals, and its flow velocity is bigger, and static pressure is then lower, and the degree of vacuum of formation is bigger.
Make airflow duct 3 with sheet steel or aluminium alloy plate or composite material, airflow duct 3 leading portions are made cylindrical shape or ellipse, for collecting more wind, also can do shapes such as flue or flat-horn shaped; The Venturi tube 4 that channel cross-sectional area changes is vertically made in the stage casing, and for ease of water conservancy diversion, leading portion and back segment all will have certain-length; The upper end spout of waste gas suction pipe 5 inserts near the minimum place of Venturi tube 4 interior sectional areas.Airflow duct 3 forward is installed on passenger vehicle 1 vehicle body (motorcoach can be installed on the top of body center portion or back segment in the middle of or both sides, also can be contained in the both sides of body top section; Small passenger car and medium bus can be installed roof rear portion), communicate in the lower end suction inlet that makes waste gas suction pipe 5 and the passenger vehicle.There is waste gas throttle gate 6 artificially to control on the waste gas suction pipe 5 to close size and regulates the waste gas discharge capacity; In addition, the sectional area size of the discharge speed of waste gas and speed of a motor vehicle height, airflow duct 3 leading portion collection air ports and Venturi tube 4 and the thickness of shape and waste gas suction pipe 5 are relevant, and these and a car are that installation will be decided on size, purposes and entire arrangement and the attractive, decorative of passenger vehicle more than 1 or 2.Also to allow air flow path wall and waste gas smooth to accelerate flow velocity by wall.
Can also connect the pipeline that stretches to car Nei Ding both sides or centre, is drilled with many apertures in waste gas suction pipe 5 lower port, motorcoach also can be adorned a plurality of automatic discharging and air-changing device for exhaust gas at roof or both sides, so that waste gas is discharged uniform and complete in the car.
Motor omnibus can car two side lower parts open a plurality of little vent windows or before car fan inlet 2 or a/c system air outlet connect and stretch to the pipeline that many apertures are arranged at bottom, both sides in the car or bottom more than two so that fresh air outside or evenly enter each place in the car through the fresh air of air conditioner refrigerating or heating.Also can total ventilation air inlet pipe or mouthful in airfilter or air purification unit are installed so as to remain on that car in the city is many, air that the bad situations of air quality such as haze sky and dust storm sky are travelled into the car is not only pure and fresh but also clean.
Summer in winter is to keep warm nice and cool in the car, waste gas throttle gate 6 or the air discharge cook of closing and control the exhaust gas flow size after timing automatic is opened also can be installed in the waste gas suction pipe cooperate an elder generation one back by people's control or timing automatic exhaust ventilation with a/c system FAI Fresh Air Intake switch.
Claims (7)
1, a kind of automatic discharging and air-changing device for exhaust gas in passenger car, comprise vent window or automotive air-conditioning system and fan inlet and air extractor duct on passenger vehicle, the bus body, it is characterized in that: the airflow duct that there is Venturi tube in the stage casing is housed on the bus body, be connected with waste gas suction pipe spout near the minimum place of sectional area in the Venturi tube, waste gas suction pipe other end suction inlet communicates with passenger vehicle inside.
2, automatic discharging and air-changing device for exhaust gas in passenger car according to claim 1 is characterized in that: waste gas throttle-valve control exhaust gas flow size is arranged on the waste gas suction pipe.
3, automatic discharging and air-changing device for exhaust gas in passenger car according to claim 1 is characterized in that: the Venturi tube sectional area is circular or oval.
4, automatic discharging and air-changing device for exhaust gas in passenger car according to claim 1 is characterized in that: waste gas suction pipe lower port connects the aspirating air pipe of arranging in the car that a lot of apertures are arranged.
5, automatic discharging and air-changing device for exhaust gas in passenger car according to claim 1 is characterized in that: a passenger vehicle is adorned 1 or 2 above automatic discharging and air-changing device for exhaust gas in passenger car.
6, automatic discharging and air-changing device for exhaust gas in passenger car according to claim 1 is characterized in that: vent window or a/c system air outlet are connected to the pipeline that the aperture of much giving vent to anger is arranged more than 2 in the passenger vehicle.
7, discharge air interchanger according to the described exhaust gas in passenger car of claim 1, it is characterized in that: ventilation of passenger train mouth or a/c system fan inlet are equipped with airfilter or air purification unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710063884 CN101011928A (en) | 2007-02-14 | 2007-02-14 | Automatic discharging and air-changing device for exhaust gas in passenger car |
| CNA2007101057045A CN101100163A (en) | 2007-02-14 | 2007-05-25 | Waste gas automatic discharging ventilation device for carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710063884 CN101011928A (en) | 2007-02-14 | 2007-02-14 | Automatic discharging and air-changing device for exhaust gas in passenger car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101011928A true CN101011928A (en) | 2007-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710063884 Pending CN101011928A (en) | 2007-02-14 | 2007-02-14 | Automatic discharging and air-changing device for exhaust gas in passenger car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101011928A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986168A (en) * | 2015-07-18 | 2015-10-21 | 马宏 | Self-adjusting ventilating system |
| CN105035107A (en) * | 2015-07-20 | 2015-11-11 | 济南大学 | Straight-through type air exchange assisting device |
| CN105109509A (en) * | 2015-08-21 | 2015-12-02 | 济南大学 | Kinetic-static energy conversion type fresh air system |
| CN105172817A (en) * | 2015-07-31 | 2015-12-23 | 济南大学 | Natural air interchanger utilizing train travelling power |
| CN111660756A (en) * | 2019-12-09 | 2020-09-15 | 摩登汽车有限公司 | Automobile ventilation system and method and automobile |
-
2007
- 2007-02-14 CN CN 200710063884 patent/CN101011928A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986168A (en) * | 2015-07-18 | 2015-10-21 | 马宏 | Self-adjusting ventilating system |
| CN105035107A (en) * | 2015-07-20 | 2015-11-11 | 济南大学 | Straight-through type air exchange assisting device |
| CN105172817A (en) * | 2015-07-31 | 2015-12-23 | 济南大学 | Natural air interchanger utilizing train travelling power |
| CN105109509A (en) * | 2015-08-21 | 2015-12-02 | 济南大学 | Kinetic-static energy conversion type fresh air system |
| CN111660756A (en) * | 2019-12-09 | 2020-09-15 | 摩登汽车有限公司 | Automobile ventilation system and method and automobile |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |