CN2777208Y - Secondary air jetting valve of motor cycle - Google Patents
Secondary air jetting valve of motor cycle Download PDFInfo
- Publication number
- CN2777208Y CN2777208Y CN 200520033800 CN200520033800U CN2777208Y CN 2777208 Y CN2777208 Y CN 2777208Y CN 200520033800 CN200520033800 CN 200520033800 CN 200520033800 U CN200520033800 U CN 200520033800U CN 2777208 Y CN2777208 Y CN 2777208Y
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- CN
- China
- Prior art keywords
- valve
- air
- way valve
- way
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a secondary air jetting valve of a motor cycle, which comprises an air cut-off valve (1), a one-way valve (2) and a valve body (4) with a valve cavity, wherein the air cut-off valve (1), the one-way valve (2) and the valve body (4) are assembled as a whole; the air cut-off valve (1) is communicated with the one-way valve (2) through the valve cavity (3), and the vertical section of the valve cavity (3) of the air jetting valve forms a right angle shape; the air cut-off valve (1) and the one-way valve (2) are respectively arranged in the positions of an air inlet hole and an air outlet hole of the valve cavity (3). The secondary air jetting valve of a motor cycle has the advantages of low cost and high control sensitivity and is suitable for four-stroke motorcycle engines.
Description
Technical field
The utility model relates to a kind of motorcycle accessories, particularly relates to a kind of motorcycle secondary air injection valve that is applicable to four stroke engine.
Background technique
The air shutoff valve of existing motorcycle secondary air injection valve and one-way valve are independent structures separately, link to each other by siphunculus between the two, because its component parts is many, cost is higher, the air shutoff valve is when the controlling non-return valve flow on the other hand, and its control sensitivity is relatively poor.
Summary of the invention
The technical problems to be solved in the utility model provides the motorcycle secondary air injection valve that a kind of cost is low, control is highly sensitive.
For solving the problems of the technologies described above, the technical solution of the utility model is: this motorcycle secondary air injection valve comprises air shutoff valve and one-way valve, described air injection valve also comprises the valve body that has valve pocket, air shutoff valve, one-way valve and valve body fit together as a whole, and the air shutoff valve communicates with one-way valve through valve pocket.
The longitudinal section of described air injection valve valve pocket is rectangular in shape, and air shutoff valve and one-way valve occupy the inlet hole and the air outlet hole place of this valve pocket respectively.
Owing to air shutoff valve, one-way valve and valve body are fitted together as a whole, have reduced parts, thereby reduced cost; Because reaction part reduces, and the air flue distance of air stream warp shortens, the air shutoff valve improves the control sensitivity of one-way valve air mass flow in addition.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in drawings, the utility model motorcycle secondary air injection valve comprises air shutoff valve 1, one-way valve 2 and has the valve body 4 of valve pocket 3, air shutoff valve 1, one-way valve 2 and valve body 4 fit together as a whole, and air shutoff valve 1 communicates with one-way valve 2 through valve pocket 3.The longitudinal section of air injection valve valve pocket 3 is rectangular in shape, and air shutoff valve 1 and one-way valve 2 occupy the inlet hole and the air outlet hole place of this valve pocket 3 respectively.Air shutoff valve 1 is made of negative pressure lid 5, diaphragm 6, controlling rod 7, spring 8, spring seat 9, seal ring 10 and the air inlet siphunculus 12 of band siphunculus successively, between negative pressure lid 5 and the diaphragm 6 air chamber 11 is arranged, diaphragm 6 is connected with controlling rod 7 one ends, the shape of spring seat 9 and size adapt with spring 8 and seal ring 10 respectively, seal ring 10 matches with valve pocket 3 inlet holes, connects for screw-in between controlling rod 7, spring 8, spring seat 9 and the seal ring 10; One-way valve 2 is made of the reed 13 and the siphunculus 14 of giving vent to anger, and the shape of reed 13 and size adapt with valve pocket 3 air outlet holes.
Working principle: during installation, rubber hose is connected with the air inlet siphunculus 12 of this motorcycle secondary air injection valve air shutoff valve 1 and the air-strainer of motorcycle respectively, the negative pressure of air shutoff valve 1 lid 5 is connected to the inlet manifold of motorcycle engine by rubber hose, and the siphunculus 14 of giving vent to anger of one-way valve 2 links to each other with the vent systems of motorcycle.This air injection valve is to utilize the pressure pulsation of motorcycle engine that fresh air is imported valve pocket 3 through air shutoff valve 1, import exhaust system for motorcycle through one-way valve 2 again, with the increase oxygen content, and rely on the temperature of vent systems to make the further oxidizing fire of imperfect combustion carbon monoxide, hydrocarbon and oxynitrides.Engine negative pressure changes and form negative pressure in the air chamber 11 of air shutoff valve 1, and this negative pressure drives seal ring 10, spring 8 by diaphragm 6, controlling rod 7, thus the flow of control air.
Claims (3)
1. motorcycle secondary air injection valve, comprise air shutoff valve (1) and one-way valve (2), it is characterized in that: described air injection valve also comprises the valve body (4) that has valve pocket (3), air shutoff valve (1), one-way valve (2) and valve body (4) fit together as a whole, and air shutoff valve (1) communicates with one-way valve (2) through valve pocket (3).
2. motorcycle secondary air injection valve according to claim 1 is characterized in that: the longitudinal section of described air injection valve valve pocket (3) is rectangular in shape, and air shutoff valve (1) and one-way valve (2) occupy the inlet hole and the air outlet hole place of this valve pocket (3) respectively.
3. motorcycle secondary air injection valve according to claim 1 and 2, it is characterized in that: described air shutoff valve (1) covers (5) by the negative pressure of band siphunculus successively, diaphragm (6), controlling rod (7), spring (8), spring seat (9), seal ring (10) and air inlet siphunculus (12) constitute, between negative pressure lid (5) and the diaphragm (6) air chamber (11) is arranged, diaphragm (6) is connected with controlling rod (7) one ends, the shape of spring seat (9) and size adapt with spring (8) and seal ring (10) respectively, seal ring (10) matches controlling rod (7) with valve pocket (3) inlet hole, spring (8), connect for screw-in between spring seat (9) and the seal ring (10); Described one-way valve (2) is made of reed (13) and the siphunculus of giving vent to anger (14), and the shape of reed (13) and size adapt with valve pocket (3) air outlet hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520033800 CN2777208Y (en) | 2005-04-04 | 2005-04-04 | Secondary air jetting valve of motor cycle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520033800 CN2777208Y (en) | 2005-04-04 | 2005-04-04 | Secondary air jetting valve of motor cycle |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2777208Y true CN2777208Y (en) | 2006-05-03 |
Family
ID=36744593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200520033800 Expired - Fee Related CN2777208Y (en) | 2005-04-04 | 2005-04-04 | Secondary air jetting valve of motor cycle |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2777208Y (en) |
-
2005
- 2005-04-04 CN CN 200520033800 patent/CN2777208Y/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |