CN201255264Y - Compressor automatic vent for locomotive - Google Patents
Compressor automatic vent for locomotive Download PDFInfo
- Publication number
- CN201255264Y CN201255264Y CNU2008201524733U CN200820152473U CN201255264Y CN 201255264 Y CN201255264 Y CN 201255264Y CN U2008201524733 U CNU2008201524733 U CN U2008201524733U CN 200820152473 U CN200820152473 U CN 200820152473U CN 201255264 Y CN201255264 Y CN 201255264Y
- Authority
- CN
- China
- Prior art keywords
- piston rod
- diaphragm
- utility
- model
- air compressor
- 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
Links
Images
Abstract
The utility model relates to an automatic purge valve of an air compressor for an engine, comprising a diaphragm (20) arranged on a piston rod (30), an air inlet (40) arranged on the bottom of the piston rod (30), a vent (50) arranged on the lateral side of the piston rod (30) and also a control compressed air port (10); the control compressed air port (10) is connected with one end of a filtering core (60), and the other end of the filtering core (60) is connected with the diaphragm (20). The utility model has the following beneficial effects: the utility model resolves the problem of matching precision of the piston rod and decreasing the failure rate; the utility model is additionally provided with the preposing filtering core and prolongs the service life of an atmospheric valve.
Description
Technical field
The utility model relates to a kind of locomotive air compressor, relates in particular to the bleed valve in this locomotive usefulness air compressor.
Background technique
Locomotive is used in rail vehicle with air compressor, pressurized air is provided in the vehicle to run process corresponding pneumatic equipment, with the normal operation of support vehicles.
The effect of bleed valve in air compressor is: when air compressor was out of service, bleed valve was the quick emptying of air compressor internal compression air, otherwise start the next time that can influence air compressor.
As seen from Figure 1: the prior art bleed valve realizes that principle mainly is by control pressurized air mouth 1 control diaphragm 2 direct pull piston rods 3, to realize being communicated with and disconnection of suction port 4 and drain 5.Among the figure: seal ring 6.
But the fault that this structure exists has:
The first, it is very high that this mode requires the Spielpassung between piston rod and the seal ring to require, and piston rod and seal ring gap are little, can increase the frictional force between them, cause not stretchy piston rod of diaphragm, do not have the effect of control atmospheric valve; Piston rod and seal ring gap are big, and pressurized gas is ganged up, and cause diaphragm front and back pressure unanimity, and the stretchy piston rod does not have the effect of controlling atmospheric valve equally.
The second, control membrana oralis sheet weares and teares easily because impurity is arranged, and working life is shorter.
Summary of the invention
The utility model technical issues that need to address have provided a kind of locomotive air compressor valve air relief, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: a diaphragm that is placed on the piston rod, and a suction port that is placed in the piston rod bottom, one is placed in the other drain of piston rod side; Also comprise: a control pressurized air mouth; Described control pressurized air mouth connects an end of crossing filter core, and the other end and the diaphragm of crossing filter core join.
Compared with prior art, the beneficial effects of the utility model are: eliminated the quality of fit problem of piston rod, reduced rate of fault; Increase the preposition filter core of crossing, prolonged the working life of atmospheric valve.
Description of drawings
Fig. 1 is a bleed valve structural representation in the prior art;
Fig. 2 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As seen from Figure 2: the utility model comprises: 40, one of the suction ports that 20, one on diaphragm that is placed on the piston rod 30 is placed in piston rod 30 bottoms are placed in the other drain 50 of piston rod 30 sides; Also comprise: a control pressurized air mouth 10; Described control pressurized air mouth 10 connects an end of crossing filter core 60, and the other end and the diaphragm 20 of crossing filter core 60 join;
Described diaphragm 20 is diaphragms of a kind of waveform configuration.
The utility model realizes that principle also is by control pressurized air mouth control diaphragm direct pull piston rod, to realize being communicated with and disconnection of suction port and drain.But difference has:
One, cancellation seal ring, diaphragm adopts the waveform diaphragm;
Two, increase the preposition filter core of crossing.
Adopt the waveform diaphragm in the utility model, make diaphragm that certain prestressing force be arranged when uncontrolled mouthful of active force, act on piston rod, make piston rod can on carry, suction port is in drain and is communicated with, make valve air relief be in the emptying state under normal conditions, bleed valve is opened and closed flexibly when work, reduced the fault point.
Increase in the utility model preposition cross filter core be because: the control mouth medium of valve air relief is a gas mixture, many particles are wherein arranged, diaphragm can wear and tear when contacting with diaphragm for a long time, cause the life-span of diaphragm to be reduced, directly influenced the working life of bleed valve, and having increased the preposition filter core of crossing, effective impurity screening has prolonged working life of diaphragm greatly.
The function that valve air relief requires to realize on vehicle-mounted air compressor is: during compressor operation, require bleed valve to be in closed condition, when air compressor is shut down, require bleed valve to be in the emptying state.The control mouth is connected with the air compressor host exhaust end; Suction port is connected with the air compressor relief opening; Drain communicates with atmosphere:
During compressor operating, the control mouth is in malleation, and suction port is in malleation, because the air compressor internal pressure is identical, the control mouth is identical with the suction port pressure, but owing to the relation control open area of diaphragm will be far longer than suction port, by following formula as can be known:
F＝P*S
F-power
P-pressure
S-area
Therefore piston rod to the suction port motion, disconnects drain and suction port under the active force of diaphragm.Air compressor normally moves.
When air compressor was shut down, the control mouth was subjected to the effect of main exhaust safety check, is in normal atmosphere (An), and the suction port effect of machine internal compression air by compression promotes piston rod to control mouthful motion, and drain is communicated with suction port, and compressor is realized emptying.
Claims (2)
1. a locomotive air compressor valve air relief comprises: a diaphragm (20) that is placed on the piston rod (30), a suction port (40) that is placed in piston rod (30) bottom, a drain (50) that is placed in piston rod (30) side side; It is characterized in that also comprising: a control pressurized air mouth (10); Described control pressurized air mouth (10) connects an end of crossing filter core (60), and the other end and the diaphragm 20 of crossing filter core (60) join.
2. locomotive air compressor valve air relief according to claim 1 is characterized in that: described diaphragm (20) is a kind of diaphragm of waveform configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201524733U CN201255264Y (en) | 2008-08-29 | 2008-08-29 | Compressor automatic vent for locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201524733U CN201255264Y (en) | 2008-08-29 | 2008-08-29 | Compressor automatic vent for locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255264Y true CN201255264Y (en) | 2009-06-10 |
Family
ID=40738582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201524733U Expired - Fee Related CN201255264Y (en) | 2008-08-29 | 2008-08-29 | Compressor automatic vent for locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255264Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758731A (en) * | 2014-01-08 | 2014-04-30 | 奉化意格特机械制造有限公司 | Air compressor emptying valve |
-
2008
- 2008-08-29 CN CNU2008201524733U patent/CN201255264Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758731A (en) * | 2014-01-08 | 2014-04-30 | 奉化意格特机械制造有限公司 | Air compressor emptying valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101096208B (en) | Vacuum intensifier for vehicle brake | |
| CN201255264Y (en) | Compressor automatic vent for locomotive | |
| WO2007056911A1 (en) | A pressurized fuel tank for a concrete pumping vehicle | |
| CN202673653U (en) | Air compressor vacuum pump overall performance experimental table | |
| CN207145207U (en) | Piston type pneumatic compresses and negative pressure all-in-one | |
| CN101890927A (en) | Energy-saving supercharging device of automobile air compressor | |
| CN102398583A (en) | Brake assistor for electric automobile | |
| CN209020063U (en) | A kind of energy-saving automatic control system of dedusting fan | |
| CN201751241U (en) | Energy-saving supercharging device of automobile air compressor | |
| CN102729930A (en) | Energy-saving pressurization control system of automobile air compressor | |
| CN202468036U (en) | Novel gas exhaust braking valve and automobile adopting same | |
| CN203876748U (en) | Compressed air supply system for service braking system of hybrid power electric vehicle | |
| CN202117876U (en) | Vertical reciprocating type vacuum pressurizing double-purpose pump | |
| CN205675034U (en) | A kind of electric locomotive brake device | |
| CN201816578U (en) | Novel brake booster for electric vehicle | |
| CN202326830U (en) | Pneumatic holding braking device | |
| CN102937093B (en) | Novel air compressor for locomotive | |
| CN201588755U (en) | Arrangement structure of reciprocating compressor | |
| CN202007758U (en) | Lubricating oil pressure automatic control device for diaphragm compressor | |
| CN204299816U (en) | A kind of automobile chassis suspend control air pump | |
| CN216554308U (en) | Air compressor with air filter quick-change structure | |
| CN204915661U (en) | Loader braking system | |
| CN201021234Y (en) | Air compressor device for engine | |
| CN205745575U (en) | A kind of gas storage reset cylinder | |
| CN201412305Y (en) | Valve plate device for vehicle air conditioning compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |