CN104500253A - Motorcycle cylinder head with one-way stop valve - Google Patents
Motorcycle cylinder head with one-way stop valve Download PDFInfo
- Publication number
- CN104500253A CN104500253A CN201410574234.7A CN201410574234A CN104500253A CN 104500253 A CN104500253 A CN 104500253A CN 201410574234 A CN201410574234 A CN 201410574234A CN 104500253 A CN104500253 A CN 104500253A
- Authority
- CN
- China
- Prior art keywords
- control valve
- valve
- air inlet
- cylinder head
- cavity
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M23/00—Apparatus for adding secondary air to fuel-air mixture
- F02M23/006—Valves specially shaped for supplying secondary air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to a motorcycle cylinder head with a one-way stop valve. The motorcycle cylinder head comprises a cylinder head body; a secondary air inlet valve seat is arranged on the cylinder head body; the secondary air inlet valve seat and the cylinder head body are of an integral structure; the secondary air inlet valve seat is provided with a secondary air channel which is provided with a secondary air inlet control valve and the one-way stop valve; the secondary air inlet control valve comprises a control valve body and a control valve rod arranged in the control valve body; the control valve body is provided with an air inlet cavity and a negative pressure cavity; the air inlet cavity is provided with an air inlet, and the negative pressure cavity is provided with a negative pressure nozzle; a control valve piece is arranged in the air inlet cavity, and a control valve diagram is arranged in the negative pressure cavity; and the position, between the control valve piece and the control valve diagram, of the control valve rod is sleeved with a control valve pressure spring. Waste gas which is not fully combusted is secondarily combusted in an air exhaust opening of the cylinder head, and therefore the energy combustion rate of a combustion chamber is improved, and the environment-friendly and energy-saving effects are achieved.
Description
Technical field
The present invention relates to motorcycle Component, specifically refer to the cylinder head of motorcycle with unidirectional stop valve.
Background technique
Gas is non-Thorough combustion in motorcycle engine cylinder, containing C0 in the mixed gas of discharging, N0, the compounds such as HC, direct discharge can cause environmental pollution, therefore, in order to reduce the pollution of motorcycle engine exhaust emissions, some motors are provided with secondary air inlet valve, unburned mixed gas is introduced in cylinder again.But the control valve valve body of existing secondary air inlet valve and cylinder head are apportions to be arranged, and apportion is arranged so that motorcycle engine complex structure, causes the installation of secondary air inlet valve and associated pipe very inconvenient simultaneously.
Summary of the invention
For the problems referred to above that prior art exists, the object of the invention is: provide a kind of structure simple, easy for installation, and the cylinder head of motorcycle of motorcycle exhaust exhaust emission can be effectively reduced.
For achieving the above object, the present invention adopts following technological scheme: a kind of cylinder head of motorcycle with unidirectional stop valve, comprise aluminium alloy cylinder head body, it is characterized in that: cylinder head body is provided with secondary air inlet valve base, described secondary air inlet valve base and cylinder head body are structure as a whole; In described secondary air inlet valve base, there is secondary-air passage, in described secondary-air passage, be provided with secondary air inlet control valve and unidirectional stop valve; Described secondary air inlet control valve comprises control valve valve body and is arranged on the control valve valve rod in control valve valve body, described control valve valve body comprises Intake Cover and negative pressure lid, described Intake Cover has air-inlet cavity, negative pressure covers to be had, described air-inlet cavity is provided with air inlet, in air-inlet cavity, is provided with control valve valve block; Described negative cavity is provided with negative pressure mouth, is provided with control valve diaphragm in negative cavity; Described control valve valve block and control valve diaphragm are arranged on the two ends of control valve valve rod; Control valve valve rod between described control valve valve block and control valve diaphragm is set with control valve stage clip.
As optimization, described negative pressure lid comprises fixing part and air guide portion, described fixing part is provided with the groove as negative cavity, described air guide portion is fixed on the right side of fixing part, portion has gas port in air guide, and described gas port comprises the first gas port and the second gas port, and wherein the first gas port communicates with the bottom of negative cavity, be provided with cushion hole between first gas port and the second gas port, described negative cavity, the first gas port, cushion hole and the second gas port communicate.
As optimization, between described control valve valve block and control valve valve interior wall, be provided with seal ring.
Relative to prior art, tool of the present invention has the following advantages: secondary air inlet valve base and cylinder head are one, makes the installation on the engine of secondary air inlet control valve and associated pipe fixing very simple.The gasoline gas that secondary air inlet control valve can control air that secondary enters and negative tube enters; And not clean-burning waste gas can be made in the relief opening of cylinder head to carry out secondary combustion, thus reduce waste gas pollution on the environment, improve the rate of combustion of the firing chamber energy, reach environmental protection and energy-conservation effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cylinder head of motorcycle with unidirectional stop valve.
Fig. 2 is the structural representation of secondary air inlet control valve.
In figure, cylinder head body 10, secondary air inlet valve base 20, secondary air inlet control valve 30, control valve valve body 31, air-inlet cavity 32, control valve valve block 32-1, negative cavity 33, control valve diaphragm 33-1, control valve valve rod 34, control valve stage clip 35, fixing part 36, air guide portion 37, first gas port 37-1, the second gas port 37-2, cushion hole 37-3.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See Fig. 1 and Fig. 2, a kind of cylinder head of motorcycle with unidirectional stop valve, comprise aluminium alloy cylinder head body, cylinder head body is provided with secondary air inlet valve base, secondary air inlet valve base and cylinder head body are structure as a whole, and make the installation on the engine of secondary air inlet control valve and associated pipe fixing very simple; In secondary air inlet valve base, there is secondary-air passage, secondary air inlet control valve and unidirectional stop valve is provided with in secondary-air passage, the end of secondary-air passage is air outlet, air outlet is communicated with engine cylinder head by steam outlet pipe, and the setting of unidirectional stop valve can prevent the waste gas of cylinder head relief opening from flowing backwards under exhaust pressure at short notice and enter secondary-air passage.
Secondary air inlet control valve comprises control valve valve body, control valve valve body comprises Intake Cover and negative pressure lid, described Intake Cover has air-inlet cavity, negative pressure covers has negative cavity, air-inlet cavity is provided with air inlet, air inlet is communicated with air filter by suction tude, is provided with control valve valve block in air-inlet cavity; Negative cavity is provided with negative pressure mouth, and negative pressure mouth is communicated with the engine air inlet tube on cylinder head by negative tube, is provided with control valve diaphragm in negative cavity; Control valve valve block and control valve diaphragm are arranged on the two ends of control valve valve rod; Control valve valve rod between control valve valve block and control valve diaphragm is set with control valve stage clip.The mixed steam oil gas that secondary air inlet control valve can control air that secondary enters and negative tube enters; not clean-burning waste gas is made to carry out secondary combustion in the relief opening of cylinder head; thus reduce waste gas pollution on the environment, reach protection of the environment and energy-conservation effect.
Negative pressure lid comprises fixing part and air guide portion, and fixing part is provided with the groove as negative cavity; Air guide portion is fixed on the right side of fixing part (particularly, air guide portion is fixed on the right lower side of fixing part), portion has gas port in air guide, gas port communicates with the bottom of negative cavity, gasoline is not easily overstock in the bottom of such negative cavity, gasoline can flow back to Carburetor from air guide portion, does not have impact to the aging quality of shut-off valve assemblies control valve diaphragm rubber and acting characteristic, improves the working life of air valve.Further, gas port comprises the first gas port and the second gas port, and wherein the first gas port communicates with the bottom of negative cavity, is provided with cushion hole between the first gas port and the second gas port, and negative cavity, the first gas port, cushion hole and the second gas port communicate.Negative pressure mouth is arranged on the end in air guide portion.
In order to improve the sealability of control valve valve block, seal ring can also be set between control valve valve block and control valve valve interior wall.Seal ring preferably adopts has flexible rubber seal.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (3)
1. have a cylinder head of motorcycle for unidirectional stop valve, comprise aluminium alloy cylinder head body, it is characterized in that: cylinder head body is provided with secondary air inlet valve base, described secondary air inlet valve base and cylinder head body are structure as a whole;
In described secondary air inlet valve base, there is secondary-air passage, in described secondary-air passage, be provided with secondary air inlet control valve and unidirectional stop valve;
Described secondary air inlet control valve comprises control valve valve body and is arranged on the control valve valve rod in control valve valve body, described control valve valve body comprises Intake Cover and negative pressure lid, described Intake Cover has air-inlet cavity, negative pressure covers has negative cavity, described air-inlet cavity is provided with air inlet, in air-inlet cavity, is provided with control valve valve block; Described negative cavity is provided with negative pressure mouth, is provided with control valve diaphragm in negative cavity; Described control valve valve block and control valve diaphragm are arranged on the two ends of control valve valve rod; Control valve valve rod between described control valve valve block and control valve diaphragm is set with control valve stage clip.
2. there is the cylinder head of motorcycle of unidirectional stop valve as claimed in claim 1, it is characterized in that: described negative pressure lid comprises fixing part and air guide portion, and described fixing part is provided with the groove as negative cavity;
Described air guide portion is fixed on the right side of fixing part, portion has gas port in air guide, described gas port comprises the first gas port and the second gas port, wherein the first gas port communicates with the bottom of negative cavity, be provided with cushion hole between first gas port and the second gas port, described negative cavity, the first gas port, cushion hole and the second gas port communicate.
3. there is the cylinder head of motorcycle of unidirectional stop valve as claimed in claim 1, it is characterized in that: between described control valve valve block and control valve valve interior wall, be provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574234.7A CN104500253A (en) | 2014-10-24 | 2014-10-24 | Motorcycle cylinder head with one-way stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574234.7A CN104500253A (en) | 2014-10-24 | 2014-10-24 | Motorcycle cylinder head with one-way stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500253A true CN104500253A (en) | 2015-04-08 |
Family
ID=52941691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410574234.7A Pending CN104500253A (en) | 2014-10-24 | 2014-10-24 | Motorcycle cylinder head with one-way stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500253A (en) |
-
2014
- 2014-10-24 CN CN201410574234.7A patent/CN104500253A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
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| WD01 | Invention patent application deemed withdrawn after publication |