CN2114074U - Surge-proof valve for turbosuperchargers - Google Patents
Surge-proof valve for turbosuperchargers Download PDFInfo
- Publication number
- CN2114074U CN2114074U CN 91225416 CN91225416U CN2114074U CN 2114074 U CN2114074 U CN 2114074U CN 91225416 CN91225416 CN 91225416 CN 91225416 U CN91225416 U CN 91225416U CN 2114074 U CN2114074 U CN 2114074U
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- valve
- valve body
- surge
- spring
- turbosupercharger
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- Safety Valves (AREA)
Abstract
The utility model relates to a surge-proof valve for turbo superchargers, comprising a barrel-shaped valve body with a bottom cover 18, a voltage regulating cover 3 and a regulating screw 1, a sliding valve 16 in the hole of the valve body, two springs 5, 12 contained by a common shaft sleeve at the top part, a dynamic air source hole A and a pressurized air outlet hole B on the side wall of the valve body. The utility model is characterized in that the interior of the stepped hole of the valve body is provided with the spring 12 which is provided with the sliding valve 16 with an annular groove and clung to the regulating screw 1 and the sliding valve 16 and the spring 5 which is clung to the voltage regulating cover 3 and the annular surface of the upper end of a lower valve body 13. The sliding valve 16 of the surge-proof valve not only can be used as a pressure responsive element, but also can be used as an actuator element. The structure is simple, the air outlet hole can be automatically closed during the running of the diesel engine under high load, and thus the purpose of economic operation is achieved.
Description
The utility model relates to a kind of turbosupercharger anti-surge valve.
In the prior art, when ambient temperature reduces when causing turbosupercharger generation surge significantly, often adopt on the outlet conduit of turbosupercharger the method that bleed valve is installed, bleed off unnecessary gas, prevent surge with the be complementary measures such as suction pressure of diesel engine of control and turbosupercharger.As the turbosupercharger on the AGO diesel engine of the internal combustion locomotive introduced from France bleed valve just is housed; And for example US4791906, US4322948 and US4387571 US Patent specification are described, also are that the gas pressure that adopts bleed valve control to enter in the cylinder of diesel engine prevents surge.What the sensor of above-mentioned bleed valve all adopted is diaphragm type, and its shortcoming is when turbosupercharger is in the non-surge area of high load region running, is in the unlatching deflated state always, and the air quantity that enters in the cylinder of diesel engine is reduced and decreased performance.
The purpose of this utility model provides a kind of turbosupercharger anti-surge valve, overcome the shortcoming that existing bleed valve exists, when making turbosupercharger be in the high load region running, this valve automatically cuts out bleed passage, to guarantee being in normal operation under the economic potimum with the diesel engine of turbocharger matching.
Turbosupercharger anti-surge valve of the present utility model comprises a tubular valve body that is formed by connecting by seam and flange by upper valve body and following valve body.Valve body two ends up and down is equipped with the bottom that band is adjusted the pressure regulating cover of screw and is with vent respectively.Guiding valve is equipped with in the bottom in the valve body, and spring is equipped with on guiding valve top, and following valve body middle part sidewall has the power gas source hole that is communicated with body cavity, and the valve diameter direction has the pressurized air that passes the two side and enters the hole, portals.Its structural feature be guiding valve have with pressurized air enter the hole, corresponding air-flow path portals.The spring that be equipped with on guiding valve top, an end of the spring that diameter is less is pressed against the big end of guiding valve by spring seat, and the other end is pressed against the adjustment screw by spring seat; Be enclosed within bigger spring one end of the outer diameter of the less spring of diameter and be pressed against down last annular end face in the valve body by spring seat, the other end is pressed against pressure regulating cover by spring seat.Like this after air pressure surpasses surge area, when pressure further improves, guiding valve moves up, the air-flow path of guiding valve moves past pressurized air and enters the hole, portals, automatically close exhaust port again in the time of under high load, turning round, reach the purpose that the diesel engine that is complementary with turbosupercharger is in most economical state proper functioning.Guiding valve promptly is that sensor is the venting executive component again, and is relatively simple for structure, easy to maintenance.Turbosupercharger anti-surge valve of the present utility model can directly be loaded on turbosupercharger, needn't change the structure of turbosupercharger, and is easy for installation.Bottom-uply in the tubular valve body can stud with the fixedly sliding sleeve that three diameters increase step by step respectively.
The utility model is through the installation evidence, and diesel engine uses under-10 ℃～-30 ℃ external temperature, and surge does not take place turbosupercharger, and is safe and reliable.
The surging characteristic plotted curve of accompanying drawing 1 turbosupercharger.Abscissa is the air mass flow Gnp(kg/s under the standard atmosphere condition among the figure); Y coordinate is the pressure ratio π k of turbosupercharger under the identical conditions, Nnp(r/min) be its rotating speed, η k is the efficient of gas compressor, 26 expression surge lines, 27 expression turbosupercharger travel lines, the travel line of turbosupercharger when the travel line of turbosupercharger during 28 expression anti-surge openings of valves, anti-surge opening of valves in the 29 expression prior arts.
The longitudinal sectional view of Fig. 2 anti-surge valve.
The scheme of installation of Fig. 3 anti-surge valve on turbosupercharger, 21 expression turbosupercharger, 22 expression plug doors, 23 expression power gas source pipes, 24 expressions anti-surge valve of the present utility model, 25 expression pressurized air outer pipes.
Now details are as follows to the utility model example in conjunction with the accompanying drawings:
As shown in Figure 2, in the cylindrical valve body opening that upper valve body 10 and following valve body 13 is connected to form by seam, flange and bolt, bottom-uply stud with the fixed powder metallurgy sliding sleeve 15,14 and 9 that three apertures increase step by step respectively.Valve body lower end is equipped with the bottom 18 of band vent 19, and the pressure regulating cover 3 that band is adjusted screw 1 is equipped with in its upper end.Adjust on screw 1 and the pressure regulating cover 3 and be respectively equipped with locking nut 2 and 6.Pack into slidably in the sliding sleeve 14 and 15 of bottom in the valve body hole and be with the guiding valve 16 of twice circular groove, the through hole B that passes its two side and sliding sleeve 15 along the valve diameter direction is closed in cylndrical surface between its twice circular groove, last annular groove and sliding sleeve 14 and corresponding body wall through hole A connection.Between the lower end surface of guiding valve 16 and the bottom 18 buffer rubber gasket 17 is arranged.The two ends up and down of inner spring 12 are pressed against the blind hole bottom surface, upper end of adjusting screw 1 and guiding valve 16 by spring seat 7 and 11 respectively; Be pressed against the last annular end face of pressure regulating cover 3 and sliding sleeve 14 respectively by spring seat 4 and 8 with the two ends up and down of the coaxial outer spring 5 of spring 12.The body wall of guiding valve 16 upper cavity has the vent 20 that prevents to produce back pressure.
When turbosupercharger and the running of diesel engine coupling, the air-flow of power gas source is in hole A enters the cavity that the hole of the last annular groove of guiding valve 16 and sliding sleeve 14 surrounds, when air pressure is set up the pressure of 12 pairs of guiding valves 16 of inner spring greater than adjustment screw 1, guiding valve 16 beginnings are along moving on its axis, simultaneously, its down annular groove remove on gradually and open pressurized air port B, this moment, the anti-asthma valve began venting, shown in arrow in the accompanying drawing 2.Along with turbo charger speed rises, air pressure raises, move on guiding valve 16 continues, B all opens with port, and the top ring surface of guiding valve 16 props up the bottom plane of outer spring seat 8 at this moment, when failing to overcome the pretightening force of outer spring 5 setting, hole B still is in the full open state.When the rotating speed rising of turbosupercharger reaches high rotating speed district (about 18000r/min), (this moment, diesel engine was in the higher load condition running) highpressure makes guiding valve 16 overcome the pretightening force of outer spring 5 again, move on spring seat 8, the following cylinder of the following annular groove of guiding valve 16 is little by little closed hole B.When spring seat 8 moved to top dead center, hole B was by Close All, thereby made turbosupercharger cross surge area safely, made an arc shown in the line AB as two point among Fig. 1, and therefore the diesel engine that is complementary with it promptly is in high load economical running state.
Claims (4)
1, a kind of turbosupercharger anti-surge valve, comprise the tubular valve body of forming by upper valve body 10 and following valve body 13, the bottom 18 of band vent 19 and the pressure regulating cover 3 that band adjustment screw 1 is equipped with in the upper end are equipped with in its lower end, guiding valve 16 is equipped with in the bottom in the valve body, spring 12 and 5 are equipped with in guiding valve top, following valve body 13 middle part sidewalls have the power gas source hole A that is communicated with body cavity, and its underpart has the pressurized air manhole appendix B that passes the two side along following valve body 13 diametric(al)s, it is characterized in that:
Be equipped with the guiding valve 16 that has air-flow path in the shoulder hole of a, tubular valve body;
One end of the spring 12 that b, diameter are less is pressed against the big end of guiding valve 16 by spring seat 11, its the other end is pressed against by spring seat 7 and adjusts screw 1, an end that coaxially is sleeved on the spring 5 of spring 12 outsides is pressed against down annular end face on the valve body 13 by spring seat 8, and its other end is pressed against pressure regulating cover 3 by spring seat 4.
2, turbosupercharger anti-surge valve according to claim 1 is characterized in that the interior bottom-up fixedly sliding sleeve 15,14 and 9 that three diameters increase step by step that studs with respectively of tubular valve body.
3, turbosupercharger anti-surge valve according to claim 2 is characterized in that sliding sleeve 15,14 and 9 makes by powder smelting material.
4, according to claim 1 or 4 described turbosupercharger anti-surge valves, it is characterized in that guiding valve 16 has the twice circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91225416 CN2114074U (en) | 1991-09-19 | 1991-09-19 | Surge-proof valve for turbosuperchargers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91225416 CN2114074U (en) | 1991-09-19 | 1991-09-19 | Surge-proof valve for turbosuperchargers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2114074U true CN2114074U (en) | 1992-08-26 |
Family
ID=4931696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91225416 Granted CN2114074U (en) | 1991-09-19 | 1991-09-19 | Surge-proof valve for turbosuperchargers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2114074U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678279A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Deflation type gas compressor surge regulation mechanism |
| CN102678276A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Volume cavity type surge adjusting mechanism of gas compressor |
| CN102678280A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Gas compressor deflation device with through tube |
| CN102678274A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Double-penetration tubular volume cavity structure |
| CN102678285A (en) * | 2012-05-07 | 2012-09-19 | 上海交通大学 | Exhaust back pressure and environmental pressure self-adaption type mechanical regulation device |
| CN101473123B (en) * | 2006-06-19 | 2012-12-12 | 罗伯特.博世有限公司 | Pneumatic actuating drive comprising an integrated electropneumatic position adjustment |
| CN102817701A (en) * | 2012-08-21 | 2012-12-12 | 上海交通大学 | Mechanical device of taking turbine frontal pressure as control pressure |
| CN102817703A (en) * | 2012-08-21 | 2012-12-12 | 上海交通大学 | Adjustment system with post-pressure of air compressor as control pressure |
| CN112983633A (en) * | 2021-03-29 | 2021-06-18 | 潍柴动力股份有限公司 | Pressurization surge-proof device and engine |
-
1991
- 1991-09-19 CN CN 91225416 patent/CN2114074U/en active Granted
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473123B (en) * | 2006-06-19 | 2012-12-12 | 罗伯特.博世有限公司 | Pneumatic actuating drive comprising an integrated electropneumatic position adjustment |
| CN102678285A (en) * | 2012-05-07 | 2012-09-19 | 上海交通大学 | Exhaust back pressure and environmental pressure self-adaption type mechanical regulation device |
| CN102678279A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Deflation type gas compressor surge regulation mechanism |
| CN102678276A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Volume cavity type surge adjusting mechanism of gas compressor |
| CN102678280A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Gas compressor deflation device with through tube |
| CN102678274A (en) * | 2012-05-21 | 2012-09-19 | 上海交通大学 | Double-penetration tubular volume cavity structure |
| CN102817701A (en) * | 2012-08-21 | 2012-12-12 | 上海交通大学 | Mechanical device of taking turbine frontal pressure as control pressure |
| CN102817703A (en) * | 2012-08-21 | 2012-12-12 | 上海交通大学 | Adjustment system with post-pressure of air compressor as control pressure |
| CN112983633A (en) * | 2021-03-29 | 2021-06-18 | 潍柴动力股份有限公司 | Pressurization surge-proof device and engine |
| CN112983633B (en) * | 2021-03-29 | 2022-08-05 | 潍柴动力股份有限公司 | Pressurization surge-proof device and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |