CN2224412Y - Pulse-pressure buffer - Google Patents
Pulse-pressure buffer Download PDFInfo
- Publication number
- CN2224412Y CN2224412Y CN 94209672 CN94209672U CN2224412Y CN 2224412 Y CN2224412 Y CN 2224412Y CN 94209672 CN94209672 CN 94209672 CN 94209672 U CN94209672 U CN 94209672U CN 2224412 Y CN2224412 Y CN 2224412Y
- Authority
- CN
- China
- Prior art keywords
- buffer
- connector
- surge tank
- tank
- utility
- 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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- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides a pulse-pressure buffer, which relates to a pressure buffer. The utility model is mainly used for the measurements of various pulsation pressures, particularly the measurements for the pressure of the fuel pump of an internal combustion locomotive. The utility model is composed of a connector, a buffer tank, and a pressure meter, wherein, the connector is in a stepped conical shape; external threads are connected with connecting nuts at bottom; a threaded hole is connected with a buffer screw at the center of the bottom; the external threads are connected with the buffer tank at top; the buffer tank forms a conical shape; a tank is positioned at the bottom of the buffer tank, internal threads are connected with the connector in the tank, the internal threads are connected with the pressure meter at the top of the buffer tank, and the internal threads are connected with buffer spirals and buffer screws in the center of the buffer tank. The utility model has the advantages that the measurements are exact, the impacts to the pressure meter is small because of a second buffer, so the service life of the utility model is prolonged, etc.
Description
The utility model relates to a kind of pulsation dampener, and the main pressure of measuring pulsation is specially adapted to the measurement to the diesel locomotive fuel pump pressure.
At present, the pressure such as the compressor of pulsation measured by China, the pressure of pump, also adopt ordinarily manometer, because fluctuation is frequently very big to the wearing and tearing of instrument transmission gear, the particularly measurement of beeliner fuel pump pressure, general locomotive are run less than one at intra-office must change a tensimeter back and forth, and since fluctuation pressure impact make that the gauge hand vibration frequency is very high can't reading, it not only brings economic loss to maintenance department, the main safe operation that jeopardizes train.
The purpose of this utility model is the shortcoming that has overcome prior art, and a kind of impact damper that is used to measure fluctuation pressure is provided.
The technical solution of the utility model is achieved in that the fluctuation pressure impact damper is made up of connector, surge tank, tensimeter.Its connector becomes step garden shape, the bottom has external thread to be connected with conduit, and outer-hexagonal shape is arranged for locking usefulness, and bottom center has a stepped bore, and be furnished with internal thread and be connected with buffering nail, its upper external thread is connected with surge tank, and the centre is furnished with O type ring and seals, and surge tank is a step garden platform, its bottom is a tank body, and have internal thread to be connected with connector, and central authorities have a threaded hole to be connected with the buffering nail, and surge tank top has internal thread to be connected with tensimeter.Buffer screw has stepped garden cylindricality pore (A).
The utility model is compared test accurately with existing pick-up unit because after adopting the secondary damping, tensimeter is impacted very little, thereby prolonged advantage such as manometric serviceable life.
Now describe most preferred embodiment of the present utility model in conjunction with the accompanying drawings in detail:
Fig. 1 is the scheme of installation of fluctuation pressure impact damper
Fig. 2 is the surge tank part front view of impact damper
Fig. 3 is the connector front view of impact damper
Fig. 4 is the enlarged drawing of buffer screw
Among the figure: 1-tensimeter, 2-O shape gasket ring, 3-buffer screw, 4-surge tank, 5-liquid, 6-buffer screw, 7-O V-shaped ring, 8-packing washer, 9-connector, 10-attaching nut, 11-connecting duct.
Fluctuation pressure impact damper: be by connector 9, surge tank 4, tensimeter 1 is formed, connector 9 bottoms are connected with attaching nut 10, and liquid or gas enter connector 9 by conduit 11, by buffer screw 6 bufferings, enter surge tank 4, by the pressurized air in the jar, to import buffer screw 3 into and cushion once more, the air pressure that enters tensimeter 1 makes needle deflection; Under the situation of pressure jump, owing to adopt secondary buffer (damping), make tensimeter 1 avoid impacting, thereby prolonged the serviceable life of tensimeter 1, in order to improve the sealing that connects between connector and the surge tank, increase an O V-shaped ring therein, between tensimeter and surge tank, also increased an O shape gasket ring simultaneously.
There is packing washer 8 to be connected with attaching nut 10 centres connector 9 during use, and guarantees to carry out test-run a machine under the leak free situation.
The course of work: when liquid makes cushion effect reduce a part by connector by buffer buffers, enter in the surge tank, because sealing, there is a certain amount of pressurized air in its surge tank, after pressurized air in jar was cushioned the device buffering, surging force weakens the arrival tensimeter again made gauge hand deflection.
Claims (2)
1, the fluctuation pressure impact damper is applicable to the measurement to various fluctuation pressures, particularly to the measurement of diesel locomotive fuel pump oil pressure; It is characterized in that it is made up of connector, surge tank, tensimeter, its connector becomes step garden shape, and the bottom has external thread to be connected with conduit, and has outer-hexagonal shape to use for locking, bottom center has a shoulder hole and is furnished with internal thread and is connected with buffering nail, and its upper external thread is connected with surge tank; The centre is furnished with O type ring and seals, and surge tank is a step garden platform, and its bottom is a tank body, and has internal thread to be connected with connector; Central authorities have a threaded hole to be connected with the buffering nail, and surge tank top has internal thread to be connected with tensimeter.
2, fluctuation pressure impact damper according to claim 1 is characterized in that buffer screw has stepped garden cylindricality pore (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209672 CN2224412Y (en) | 1994-04-28 | 1994-04-28 | Pulse-pressure buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209672 CN2224412Y (en) | 1994-04-28 | 1994-04-28 | Pulse-pressure buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224412Y true CN2224412Y (en) | 1996-04-10 |
Family
ID=33827293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94209672 Expired - Fee Related CN2224412Y (en) | 1994-04-28 | 1994-04-28 | Pulse-pressure buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224412Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478443A (en) * | 2010-11-26 | 2012-05-30 | 中国北车集团大连机车车辆有限公司 | Measurement filter for fuel pressure of diesel engine |
-
1994
- 1994-04-28 CN CN 94209672 patent/CN2224412Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478443A (en) * | 2010-11-26 | 2012-05-30 | 中国北车集团大连机车车辆有限公司 | Measurement filter for fuel pressure of diesel engine |
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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 |