CN2370171Y

CN2370171Y - Integrated gas supply device for liquefied petroleum gas motor two-wheeled vehicle

Info

Publication number: CN2370171Y
Application number: CN 98247284
Authority: CN
Inventors: 斯丰义
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-14
Filing date: 1998-12-14
Publication date: 2000-03-22
Anticipated expiration: 2008-12-14

Abstract

The utility model relates to an integrated gas supplying device for mobile two-wheel vehicles using liquefied petroleum gas, which belongs to the technical field of the fuel supply of mobile two-wheel vehicles. Compared with gas supply devices with separated parts, the utility model has the improvements of gas leakage prevention, safe use, simplified structure, and reduced production cost. An outlet of a fuel bottle is fixedly connected with a pressure reductor. A lower casing of the pressure reducer is attached with a small stop valve inside. The closing and the opening of the utility model adopt the mode of bidirectional locking seal. A high pressure gas outlet restricting orifice in the pressure reductor is contracted to be matched with the operating condition of an engine. The device is used in boosted vehicles, motorcycles and motorcycle type tricycles which all combust liquefied petroleum gas, and the utility model can reduce exhaust emission.

Description

Liquefied petroleum gas is two-wheeled uses integrated air feeder

The utility model relates to a kind of two-wheeled fuel supply technical field, be applicable to that motor-helping car, motorcycle, motor-tricycle use the liquefied petroleum gas gasoline replacing, particularly more show its superior part when bottle service mode is implemented to change in bottle site when adopting socialization to change.

In order to reduce tail gas pollution of motor-driven vehicle, people have been used for two-wheeled to substitute the technology of gasoline at active development clean fuel liquefied petroleum gas, in the exploitation air supply system, generally all adopt the processing scheme of discrete parts, promptly change (fuel uses up the back empty bottle and changes full bottle) as a part detachable with the fuel cylinder of stop valve, decompressor, the pipe breakage inflow-rate of water turbine leaks the automatic emergency shut-off means, current-limiting apparatus is fixing onboard as other parts, is connected with pipeline or screw thread between them.This processing scheme is used to long-term safety and brought very big hidden danger, is mainly: a bottle dismounting meeting is changed because of long-term frequent operating mode vibration in the interface section of (1), pipeline, especially pipeline

Cause fatigue failure to cause high-pressure leakage to cause the combustion explosion accident.(2), the user dismounting personal factor of changing bottle misoperation causes high-pressure leakage to cause accident.(3), these above devices are the parts that bear high pressure, stay onboard and can not get due maintenance for a long time, fatigue ruption can take place in time at longer end, the collision fracture, vibration gets loose, the disabler situation, cause system jams, spalling, cause the high-pressure leakage accident.Especially the rubber membrane in the decompressor, its working condition is abominable, and vibration is frequent, and self is weak especially, is easy to the fatigue failure perforation and causes a large amount of pressurized gas to leak.

So, prevent that high-pressure leakage from being the key of safe handling.In addition, the air supply system manufacture cost of this scheme is also than higher.

The purpose of this utility model is that a kind of incorporate air feeder will be provided, and it has overcome above deficiency, eliminates safe hidden trouble as much as possible, guarantees the use of user's long-term safety, and reduces the cost of production of device,

The utility model air feeder is achieved in that it comprises fuel cylinder, decompressor, stop valve, the high pressure throttle orifice of giving vent to anger.It is characterized in that: fuel cylinder directly and decompressor be fixedly linked, stop valve, the high pressure throttle orifice of giving vent to anger all is located in the decompressor setting of being integral of integral body.

Further set forth concrete enforcement of the present utility model below in conjunction with accompanying drawing.

See also in the accompanying drawing: 1, decompressor upper casing; 2, spring; 3, protecting sheet; 4, rubber membrane; 5, linkage mechanism; 6, filling adaptor; 7, the high pressure throttle orifice of giving vent to anger; 8, LP gas fuel; 9, guard circle; 10, low pressure air outlet; 11, fuel cylinder; 12, decompressor lower casing; 13, stop valve.Be not difficult to find out that from its this whole system is integrated the utility model comprises that fuel cylinder 11. has the decompressor of upper casing 1 and lower casing 12, stop valve 13, the high pressure throttle orifice 7 of giving vent to anger.The outlet of fuel cylinder 11 directly is fixedly linked with decompressor lower casing 12, and its Placement can be welding, is threaded or other means of fixation connection; Stop valve 13, the high pressure throttle orifice 7 of giving vent to anger all is located in the decompressor lower casing 12; The form of bidirectional locking sealing is adopted in the opening and closing of stop valve 13, manual, electronic or interlock that opening ways can be; The give vent to anger flow of throttle orifice 7 and aperture of high pressure designed according to the required flow of maximum duty that is matched with motor, exceeds with the air demand that satisfies the motor maximum duty.The effect of other parts and enforcement among the figure with reference to the accompanying drawings with above-mentioned explanation, are understandable to those skilled in the art, do not give unnecessary details one by one at this.

Brief description working principle of the present utility model once:

The required maximum combustion steam flow amount of motor when car quickens; the stop valve 13 of combustion gas through opening extrudes 7 ejections of vapour throttle orifice by height; this moment, the high vapour throttle orifice 7 that extrudes was opened by spring 2 downward pushing tow protecting sheets 3 and rubber membrane 4 drivening rod mechanisms; combustion vapour directly goes out low pressure steam ouput 10 and advances mixer through flexible pipe; this moment, the blast tube of mixer also was opened into maximum, mixed laggard motor through empty vapour/combustion vapour.

When car at a slow speed or during idling, the combustion vapour passage of mixer turns down, fire vapour this moment and can not freely flow out just the space inner accumulated expansion that can be formed at rubber membrane 4 and decompressor lower casing 12, the reverse pushing tow rubber membrane 4 of reaction force that has overcome spring 2 makes its rising, drivening rod mechanism 5 parts are blocked the high vapour throttle orifice 7 that extrudes makes it go out the steam flow amount with the required vapour amount of motor reduces synchronously, all seals up to stopping.

The beneficial effects of the utility model are:

(1), long-term safety in utilization improves greatly. It integrates whole system, globality, Good airproof performance does not have pipeline to connect, also stays onboard without any parts that relate to high pressure, In the service operations process fuel cylinder is rented the user in interior whole system and use, the user changes the process of bottle In do not contact high-pressure section fully yet, only need to change joint in the low pressure gas outlet and get final product, and along with changing The bottle process apparatus is got back in the can factory can be at any time or periodic inspection, guarantees to use safety.

(2), simplified structure, reduced cost of production.

Claims

1, a kind of liquefied petroleum gas is two-wheeled uses integrated air feeder, comprise fuel cylinder, decompressor, stop valve, the high pressure throttle orifice of giving vent to anger, it is characterized in that: fuel cylinder directly and decompressor be fixedly linked, stop valve, the high pressure throttle orifice of giving vent to anger all is located in the decompressor setting of being integral of integral body.

2, device as claimed in claim 1 is characterized in that: decompressor comprises upper casing and lower casing, and fuel cylinder exports directly and lower casing is fixedly linked.

3, as the described device of claim 1.2, it is characterized in that: stop valve, the high pressure throttle orifice of giving vent to anger all is located in the decompressor lower casing.