CN2639541Y

CN2639541Y - Carburetor

Info

Publication number: CN2639541Y
Application number: CN 03233510
Authority: CN
Inventors: 郑良安
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-12
Filing date: 2003-03-12
Publication date: 2004-09-08
Anticipated expiration: 2013-03-12

Abstract

The utility model discloses a carburetor, which adopts the proposal that a manual enrichment valve and a manual enrichment valve manipulator are arranged on the carburetor body, which is also provided with an enrichment valve air intake and an oil-air mixing port; the enrichment valve air intake is connected with the manual enrichment valve through the carburetor import; the oil-air mixing port is connected with the inside of the carburetor throttle through the manual enrichment valve; and the carburetor import is arranged on the carburetor at the air intake of a vacuum valve, on which an auxiliary air intake device is arranged on the enrichment valve for connection with the enrichment valve air intake. Through the simple auxiliary air intake device, the utility model avoids the disadvantage of small size of the enrichment valve air intake, increases the oil-air mixing amount of the enrichment valve, solves the cold starting problem of the original smaller displacement carburetor arranged on the bigger displacement engine and can work with other carburetors with similar parameters so as to reduce the types of the carburetor and has the advantages of simple production or modification and easy operation.

Description

Carburetor

Technical field

The utility model relates to a kind of Carburetor, in particular for the gasoline of engine and carburetor of motorcycle with mix vaporization, auxiliary motorcycle cold-starting device.

Background technique

Motorcycle is when starting, especially start in the cold snap, need proportions of ingredients with upgrading valve enriching oil gas, and need certain warming up time, the motorcycle carburetor of manual upgrading valve, its cost of production is lower, and simple to operate, good reliability obtains the certain approval in market, it is that manual upgrading valve has been installed on the Carburetor body, and the manipulator of handling manual upgrading valve is arranged, and the Carburetor body has been established the upgrading valve suction tude, and this suction tude one end communicates with the carburetor air mouth, the other end communicates with the miscella gas port by the inside of upgrading valve, and the miscella gas port is connected Carburetor at throttle body and blended gas port; Its method of work is generally, by stirring manual upgrading valve manipulator, the spool of manual upgrading valve is mentioned, simultaneously the enriching spindle is mentioned, open oil-feed and suction port, the mixed oil and gas of enriching starts and preheating from the miscella gas port of the throttle body supply engine that comes out, after the motor proper functioning, oppositely stir manual upgrading valve manipulator, close the oil-feed and the suction port of upgrading valve, stop the work of upgrading valve; Such Carburetor often versatility aspect cold start-up is relatively poor, is close to a kind of Carburetor of type of model mutually, because the required miscella tolerance of big discharge capacity is big, the Carburetor that has satisfied than the small displacement engine cold start-up does not just satisfy than big discharge capacity; Reason is, upgrading valve miscella tolerance size is decided by to be communicated with the carburetor air mouth, be located on the Carburetor body wall one the fixedly Throughput of air flue, this air flue is the upgrading valve suction tude, the Throughput that changes this air flue is relatively more difficult, it is just very uneconomical that Carburetor is made in redesign, and bring the various of Carburetor model specification kind.

The model utility content

In order to overcome the defective of above-mentioned prior art, the purpose of this utility model is: a kind of Carburetor simple in structure is provided, solves such Carburetor because upgrading valve miscella tolerance is not enough, the cold start-up problem during the using on than large-duty engine of generation.

In order to achieve the above object, the technical solution of the utility model is, manual upgrading valve and manual upgrading valve manipulator are installed having on the Carburetor body, and on the Carburetor body, be provided with upgrading valve suction tude and miscella gas port, and the upgrading valve suction tude is connected manual upgrading valve from the carburetor air mouth, the miscella gas port is connected the carburetor throttle inboard from manual upgrading valve, the carburetor air mouth also is provided with on the Carburetor of vacuum valve suction port simultaneously, from the vacuum valve suction port auxiliary air intake device is installed again and is communicated with the upgrading valve suction tude on upgrading valve.

The utility model is established a simple auxiliary air intake device, remedy the little deficiency of upgrading valve suction tude, strengthen upgrading valve miscella tolerance, cold start-up problem when the Carburetor that has solved original less discharge capacity specification uses on than large-duty engine, can be shared a kind of with the Carburetor of proximity parameter, reduced Carburetor specification kind, and made or transformed simple, very easy to use.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is an embodiment's of the utility model a Facad structure schematic representation.

Fig. 2 is the right elevation of Fig. 1.

Fig. 3 is the local structure for amplifying schematic representation of the I portion of Fig. 1.

Fig. 4 is the left view of Fig. 1.

Fig. 5 is the C-C cutaway view Amplified image of Fig. 1, promptly manual upgrading valve internal structure schematic representation.

Fig. 6 is the A-A sectional stretch-out view of Fig. 3, an embodiment's of auxiliary air intake device promptly of the present utility model structural representation.

Fig. 7 is the B-B cutaway view Amplified image of Fig. 2.

Embodiment

Referring to Fig. 1 to Fig. 7, Carburetor of the present utility model, manual upgrading valve 4 and manual upgrading valve manipulator 3 have been installed on Carburetor body 1, and on Carburetor body 1, be provided with upgrading valve suction tude 6 and miscella gas port 102, upgrading valve suction tude 6 is connected manual upgrading valve 4 from carburetor air mouth 8, miscella gas port 102 is connected carburetor throttle 5 inboards from manual upgrading valve 4, and carburetor air mouth 8 also is provided with vacuum valve suction port 101 simultaneously; From vacuum valve suction port 101 auxiliary air intake device 2 is installed again and is communicated with upgrading valve suction tude 6 on upgrading valve 4, this auxiliary air intake device 2 remedies the little deficiency of upgrading valve suction tude, strengthens upgrading valve miscella tolerance.

Referring to Fig. 1, Fig. 4, Fig. 7, auxiliary air intake device 2 is installed in the outside of Carburetor body 1, upgrading valve suction tude 6 is for to be located at the aperture 62 that processes on one section evagination road of carburetor air mouth 8, and the ventilating hole of vacuum valve 7 is the special air flue vacuum valve suction port 101 that is located at carburetor air mouth 8 ends; Miscella gas port 102 is located at carburetor throttle 5 inboards;

Referring to Fig. 5, Fig. 6, the auxiliary air intake device 2 of present embodiment is made up of the pipe joint 23 at pipe 21 and two ends thereof, and pipe joint 23 is installed in respectively on the vacuum valve suction port 101 and upgrading valve of Carburetor body 1; A hole is established in vacuum valve suction port side, hole mounting pipe joint 23, and pipe 21 is enclosed within on the pipe joint 23; Pipe 21 adopts spring hose.

Referring to Fig. 2, Fig. 4, Fig. 5, Fig. 7, the manual upgrading valve manipulator of installing in Carburetor body 1 outside 3 is made up of the shift fork 32 of operating grip 31 and interlock with it.Manually upgrading valve 4 comprises corresponding assemblies such as valve body 43, valve rod 41, spool 48, needle 46 and valve gap 44, headkerchief 42, spring 45; Its valve rod 41, spool 48, needle 46 are one, be provided with the chamber in the valve body 43, in this chamber, by the logical aforesaid upgrading valve suction tude 6 of endoporus 61, by external hole mounting pipe joint 23 logical auxiliary air intake devices 2, the logical miscella gas port 102 of sector hole behind logical filler opening 47 in needle hole and the chamber is arranged, the external hole of hole 61 and mounting pipe joint 23 is at the air inlet leading portion in chamber; Spool 48 can be in this chamber being interconnected of the above-mentioned hole of slide opening and closing.During startup, rotating operation handle 31 is to " start bit ", operating grip 31 rotates on its drive shift fork 32 and changes, shift fork 32 overcomes spring 45 resistances such as grade and lifts valve rod 41, spool 48 and needle 46 are risen, the air of the gasoline of filler opening 47 and upgrading valve suction tude 6, auxiliary air intake device 2 mixes in aforementioned cavities, and connects and mix gas port 102, and mixed oil and gas mixes gas port 102 through the hole that connects Carburetor body 1 with the carburetor throttle section and communicates.

At last, below example is only unrestricted for the explanation the technical solution of the utility model constantly, although the utility model is had been described in detail with reference to preferred embodiment, still can carry out local improvement or be equal to replacement the technical solution of the utility model, all be encompassed among the spirit of the present utility model.

Claims

1. Carburetor, manual upgrading valve and manual upgrading valve manipulator are installed on the Carburetor body, and on the Carburetor body, be provided with upgrading valve suction tude and miscella gas port, the upgrading valve suction tude is connected manual upgrading valve from the carburetor air mouth, the miscella gas port is connected the carburetor throttle inboard from manual upgrading valve, the carburetor air mouth also is provided with the vacuum valve suction port simultaneously, it is characterized in that: from the vacuum valve suction port auxiliary air intake device (2) is installed also and upward communicates with the upgrading valve suction tude at upgrading valve (4).

2. Carburetor according to claim 1 is characterized in that: described auxiliary air intake device (2) is installed in the outside of Carburetor body (1).

3. Carburetor according to claim 1 is characterized in that: described auxiliary air intake device (2) is made up of the cover pipe joint (23) in the above at pipe (21) and two ends thereof, and pipe joint is installed in respectively on Carburetor body and the manual upgrading valve.

4. Carburetor according to claim 3 is characterized in that: the pipe of described auxiliary air intake device (2) is a spring hose.