CN104929718A - Pressure self-balancing inlet valve set of pneumatic engine - Google Patents
Pressure self-balancing inlet valve set of pneumatic engine Download PDFInfo
- Publication number
- CN104929718A CN104929718A CN201510375854.2A CN201510375854A CN104929718A CN 104929718 A CN104929718 A CN 104929718A CN 201510375854 A CN201510375854 A CN 201510375854A CN 104929718 A CN104929718 A CN 104929718A
- Authority
- CN
- China
- Prior art keywords
- valve
- air valve
- balancing
- piston
- pressure self
- 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
Links
Landscapes
- Valve Device For Special Equipments (AREA)
Abstract
The present invention discloses a pressure self-balancing inlet valve set of a pneumatic engine, and relates to a pneumatic engine inlet valve. The pressure self-balancing inlet valve set comprises an air valve (1) and an air valve conduit (2); the air valve (1) is provided with a piston (5) on an air valve rod (4) over an umbrella-shaped body (3) of the air valve (1); a lower end of the air valve conduit (2) is provided with a cylindrical air valve cavity (6); a side wall of the air valve cavity (6) is provided with a pressure gas inlet (7) and a balancing channel (8); an upper end of the balancing channel (8) opens at a position, close to the air valve conduit (2), of an inner side of the air valve cavity (6); a lower end of the balancing channel (8) is communicated with a cylinder; the umbrella-shaped body (3) of the air valve (1) is in seal fit with a lower port of the air valve cavity (6); the piston (5) is disposed in the air valve cavity (6) between the upper port of the balancing channel (8) and the pressure gas inlet (7); and a side wall of the piston (5) is in seal fit with the inner wall of the air valve cavity (6). The pressure self-balancing inlet valve set is advantaged by simple structure and low cost, and the problem that air valve leakage of the pneumatic engine happens due to the fact that pressure of driving gas rises can be effectively solved.
Description
Technical field
The present invention relates to engine intake valve, particularly the architecture advances of air motor intake valve group.
Background technique
In the experimentation of air motor, along with the rising of propellant pressure, utilize original air valve structure, cannot ensure the effective sealing of intake valve, under the gas pressure constantly raised, valve can overcome spring force gradually and produce leakage phenomenon.Solve the problem, only increase spring strength simply, not only can increase motor power consumption, also can aggravate the wearing and tearing of parts.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of air motor pressure self-balancing intake valve group, with solve air motor with propellant pressure raise and produce valve leak problem.
Technical solution of the present invention is: it comprises valve and valve guide bushing, the valve stem of described valve above its umbrella body is provided with piston, the lower end of described valve guide bushing is provided with the valve chamber of tubular, the sidewall in valve chamber is provided with pressed gas import and balance channel, balance channel upper end open in valve cavity wall near valve guide bushing side, lower end is communicated with cylinder, umbrella body and the valve chamber lower end mouth of valve are sealed and matched, piston is placed in valve chamber between the upper end-hole of balance channel and pressed gas import, and piston sidewall and valve cavity wall are sealed and matched.
Technique effect of the present invention is: structure is simple, cost is low advantage that it has, and effectively can solve air motor and raises with propellant pressure and produce the problem that valve leaks.While realizing engine reliable work, turn avoid the wearing and tearing increasing valve spring elastic force and cause to camshaft, and the engine interior power consumption increased thus.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, it comprises valve 1 and valve guide bushing 2, the valve stem 4 of described valve 1 above its umbrella body 3 is provided with piston 5, the lower end of described valve guide bushing 2 is provided with the valve chamber 6 of tubular, the sidewall in valve chamber 6 is provided with pressed gas import 7 and balance channel 8, balance channel 8 upper end open in valve chamber 6 inwall near valve guide bushing 2 side, lower end is communicated with cylinder, umbrella body 3 and valve chamber 6 lower end mouth of valve 1 are sealed and matched, it is interior between the upper end-hole and pressed gas import 7 of balance channel 8 that piston 5 is placed in valve chamber 6, piston 5 sidewall coordinates with valve chamber 6 inner wall sealing.Piston 5 can slide up and down along valve chamber 6 inwall.
The sidewall of described piston 5 is provided with annular groove 9, is provided with seal ring 10 in annular groove 9.
Described seal ring 10 is metallic packing ring.Seal ring 10 can with reference to piston ring structure.
The present invention can overcome the impact of gas pressure on the effect of valve spring return, and be confirmed in practice, it is satisfactory for result, can ensure that motor is under the condition of any foreign gas pressure, all can reliably working.
By balance channel, piston remains identical with the pressure in cylinder near the space of valve guide bushing side.The gas pressure of namely no matter coming from inlet end has much, and acting on valve umbrella body and piston is all contrary a pair equilibrant in equal and opposite in direction direction.Intake valve just only by the unlatching active force that return active force and the rocking arm of valve spring transmit, and is not subject to the impact of propellant pressure.
When intake valve is in closed condition, how the pressure no matter in air intake branch changes, because the space of piston near valve guide bushing side is communicated with cylinder, so valve only remains on original seal position under the effect of return spring.When intake valve is in opening state, pressure in cylinder can increase along with the increase of insufflation gas amount, but owing to valve chamber there being the air flue towards cylinder, just make piston back side cavity pressure keep synchronous with cylinder pressure all the time to change, also make between piston and umbrella body, to form a pair transient equiliblium power, and on valve axial direction, making a concerted effort that pressed gas is formed is zero, any impact can not be produced on the action of valve.
This is not just while increasing return spring elastic force, under ensure that pressure change and change of state (open, close) situation, the reliable reset of intake valve and effective sealing, both the reliably working of motor had been achieved, turn avoid the wearing and tearing caused to camshaft because increasing valve spring elastic force, and the engine interior power consumption increased thus.
Claims (3)
1. air motor pressure self-balancing intake valve group, comprise valve (1) and valve guide bushing (2), it is characterized in that, the valve stem (4) of described valve (1) in its umbrella body (3) top is provided with piston (5), the lower end of described valve guide bushing (2) is provided with the valve chamber (6) of tubular, the sidewall in valve chamber (6) is provided with pressed gas import (7) and balance channel (8), balance channel (8) upper end open in valve chamber (6) inwall near valve guide bushing (2) side, lower end is communicated with cylinder, umbrella body (3) and valve chamber (6) lower end mouth of valve (1) are sealed and matched, it is interior between the upper end-hole and pressed gas import (7) of balance channel (8) that piston (5) is placed in valve chamber (6), piston (5) sidewall coordinates with valve chamber (6) inner wall sealing.
2. air motor pressure self-balancing intake valve group as claimed in claim 1, it is characterized in that, the sidewall of described piston (5) is provided with annular groove (9), is provided with seal ring (10) in annular groove (9).
3. air motor pressure self-balancing intake valve group as claimed in claim 2, it is characterized in that, described seal ring (10) is metallic packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375854.2A CN104929718A (en) | 2015-06-27 | 2015-06-27 | Pressure self-balancing inlet valve set of pneumatic engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375854.2A CN104929718A (en) | 2015-06-27 | 2015-06-27 | Pressure self-balancing inlet valve set of pneumatic engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104929718A true CN104929718A (en) | 2015-09-23 |
Family
ID=54117103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510375854.2A Pending CN104929718A (en) | 2015-06-27 | 2015-06-27 | Pressure self-balancing inlet valve set of pneumatic engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104929718A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020156915A3 (en) * | 2019-01-29 | 2020-12-03 | Erwin Junker Grinding Technology A.S. | Method for introducing highly precompressed combustion air into a combustion chamber of an internal combustion engine, high-pressure inlet valve therefor and internal combustion engine having such a high-pressure inlet valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0897059A2 (en) * | 1997-08-14 | 1999-02-17 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Hot gas engine with cam operated stem guided inlet valve |
| CN2789431Y (en) * | 2005-03-18 | 2006-06-21 | 重庆建设摩托车股份有限公司 | Motorcycle engine |
| CN102392733A (en) * | 2007-08-13 | 2012-03-28 | 史古德利集团有限责任公司 | Pressure balanced engine valves |
| CN103422929A (en) * | 2012-05-24 | 2013-12-04 | 北京星旋世纪科技有限公司 | Balance seal valve and valve system thereof |
| CN104405466A (en) * | 2014-10-21 | 2015-03-11 | 大连理工大学 | High pressure inlet valve for compressed air engine |
| CN204716323U (en) * | 2015-06-27 | 2015-10-21 | 胡学文 | Air motor pressure self-balancing intake valve group |
-
2015
- 2015-06-27 CN CN201510375854.2A patent/CN104929718A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0897059A2 (en) * | 1997-08-14 | 1999-02-17 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Hot gas engine with cam operated stem guided inlet valve |
| CN2789431Y (en) * | 2005-03-18 | 2006-06-21 | 重庆建设摩托车股份有限公司 | Motorcycle engine |
| CN102392733A (en) * | 2007-08-13 | 2012-03-28 | 史古德利集团有限责任公司 | Pressure balanced engine valves |
| CN103422929A (en) * | 2012-05-24 | 2013-12-04 | 北京星旋世纪科技有限公司 | Balance seal valve and valve system thereof |
| CN104405466A (en) * | 2014-10-21 | 2015-03-11 | 大连理工大学 | High pressure inlet valve for compressed air engine |
| CN204716323U (en) * | 2015-06-27 | 2015-10-21 | 胡学文 | Air motor pressure self-balancing intake valve group |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020156915A3 (en) * | 2019-01-29 | 2020-12-03 | Erwin Junker Grinding Technology A.S. | Method for introducing highly precompressed combustion air into a combustion chamber of an internal combustion engine, high-pressure inlet valve therefor and internal combustion engine having such a high-pressure inlet valve |
| CN113383155A (en) * | 2019-01-29 | 2021-09-10 | 埃尔温容克尔研磨技术股份公司 | Method for introducing highly pre-compressed combustion air into a combustion chamber of an internal combustion engine, high-pressure inlet valve for the method, and internal combustion engine having such a high-pressure inlet valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204716323U (en) | Air motor pressure self-balancing intake valve group | |
| CN203604712U (en) | Small electromagnetic three-way valve | |
| CN201599415U (en) | Positive-pressure internal balance stop valve | |
| CN104929718A (en) | Pressure self-balancing inlet valve set of pneumatic engine | |
| CN202769031U (en) | Secondary throttling cut-off balanced-type throttle valve | |
| CN203686162U (en) | Novel ultrahigh vacuum valve | |
| CN201982674U (en) | Pneumatic piston type on/off valve | |
| CN204628592U (en) | A kind of vacuum valve | |
| CN204985838U (en) | Your bi -pass directional control valve | |
| CN203717947U (en) | Ammonia double valve clack stop valve | |
| CN104390049A (en) | Anticorrosion stuffing seal structure | |
| CN203656224U (en) | Semiclosed free-disassembly stop valve | |
| CN104455512A (en) | Water valve in water softener | |
| CN204756210U (en) | Improved generation vapour -pressure type conduit coupling | |
| CN205663901U (en) | Corrugated tube stop valve of area direction muscle valve clack | |
| CN204372315U (en) | Corrosion resistant type packing seal structure | |
| CN204300451U (en) | A kind of triple duty valve | |
| CN202914769U (en) | Sterile split-body valve | |
| CN104847978A (en) | Improved air pressure type pipeline connecting piece | |
| CN203892643U (en) | External pilot relief valve structure | |
| CN205315819U (en) | Piston type cylinder | |
| CN205190795U (en) | Novel stop valve | |
| CN205559835U (en) | PPR stop valve | |
| CN203584495U (en) | Engine oil pump cover of engine | |
| CN203560495U (en) | Integrated top entry ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150923 |