CN201391394Y - Fuel filter hand pump with complete oil absorption function and small flow resistance - Google Patents
Fuel filter hand pump with complete oil absorption function and small flow resistance Download PDFInfo
- Publication number
- CN201391394Y CN201391394Y CN200920143662U CN200920143662U CN201391394Y CN 201391394 Y CN201391394 Y CN 201391394Y CN 200920143662 U CN200920143662 U CN 200920143662U CN 200920143662 U CN200920143662 U CN 200920143662U CN 201391394 Y CN201391394 Y CN 201391394Y
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- oil
- pump
- fuel
- way valve
- hand pump
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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a novel fuel filter hand pump with complete oil absorption function and small flow resistance, and solves the problem that fuel, which accidentally bypasses filtration by a filter, enters into a hand pump, with impurities depositing in the position of a one-way valve, thereby shortening the service life of the fuel filter hand pump. The utility model involves the following structural improvements: a main one-way valve is installed in the position of an oil outlet on an oil outlet passage on a pump body, and a pump inlet oil passage is communicated with the main one-way valve and an oil inlet one-way valve respectively. With the shortening of the oil passage, and the removal of a one-way valve in the oil flowing direction of an engine when in normal operation, the utility model reduces the fuel flow resistance of the engine in normal operation, with a low operating pressure differential thereof, thereby prolonging the service life of the filter, and prolonging the service life and replacement cycle of the hand pump.
Description
Technical field
The utility model relates to the fuel filter hand pump.
Background technique
The effect of the manual oil feed pump of fuel filter is that the air in new filter cleaner of oil-fired system and the pipeline is discharged, and the fuel oil in the fuel tank filled with filter cleaner or fuel pipe by the low pressure oil circuit, no air existence in the oil circuit of oil-fired system guarantees to start normal startup of function and work when guaranteeing engine operation; On the other hand, when the motor proper functioning this as an oil supply gallery of engine fuel system.
At present, on the market the manual pump of the filter cleaner that supplies be mostly fuel oil earlier through oil pipe, hand pump filler opening, main one-way valve to filter cleaner, and through in line check valve to the hand pump pump chamber, again by fuel-displaced one-way valve, hand pump oil outlet to filter cleaner.When hand pump gland and diaphragm lift by pressure spring, fuel-displaced closed check valve, in line check valve is opened, and the fuel oil in the fuel tank enters manual pump chamber by oil input channel, in line check valve; When the hand pump gland was depressed by external force, in line check valve was closed, fuel-displaced one-way valve opens, and manually the fuel oil in the pump chamber is pressed in the filter cleaner by fuel-displaced one-way valve.Repeat like this to press by the hand pump gland, the air in the new filter cleaner will be squeezed filter cleaner by fuel oil, and fuel oil arrives oil road after filter cleaner filters simultaneously.Manually when air pump inoperative and diesel engine machine proper functioning fuel oil by oil input channel, main one-way valve, filter cleaner to flowline, to engine pump, rail fuel feeding.
From above process as can be known, the fuel oil that enters manual pump chamber during hand pump work is to filter without filter cleaner, has the more fuel oil of impurity, and manual pump work is produced following harmful effect:
1, when the larger particles in the fuel oil that filters without filter cleaner or impurity are deposited in fuel-displaced one-way valve place, will cause fuel-displaced one-way valve to be in opening-wide state.Because fuel-displaced one-way valve communicates with oil road, and must squeeze air in the filter cleaner that makes new advances with fuel oil behind the filter cleaner that more renews,, just illustrate that also the hand pump inner chamber communicates with ambient atmosphere so oil road at this moment communicates with atmosphere.Because interior external atmosphere pressure equates that this moment, hand pump can't be extracted into fuel oil in the hand pump inner chamber, thereby can't discharge the air in the new filter cleaner.
2, when the larger particles in the fuel oil that filters without filter cleaner or impurity are deposited in the in line check valve place, will cause in line check valve to be in opening-wide state.Because in line check valve communicates with oil input channel, and must squeeze air in the filter cleaner that makes new advances with fuel oil behind the filter cleaner that more renews, so the fuel oil in the fuel tank must be extracted in the manual pump chamber, fuel oil could be pressed onto in the new filter cleaner after by pressure in line check valve being opened, thereby squeeze air in the filter cleaner with fuel oil.But because in line check valve also is in open mode, can cause fuel oil in the manual pump chamber like this in being pressed into new filter cleaner in, a part has pushed back again in the fuel tank, has so just increased the number of times of pushing hand pump, has reduced the oily efficient of pump of hand pump.
Because the working life of filter cleaner, about 1.2～1.5KM (about 3 months), the filter paper in the filter cleaner was substantially blocked up by the impurity in the fuel oil at this moment substantially, this moment, pressure difference was bigger, must more renew filter cleaner.And after each the replacing, all might be when discharging air in the new filter cleaner because the larger particles impurity that has in the fuel oil is piled up at the one-way valve place with hand pump, make one-way valve be in opening-wide state, cause the hand pump operational difficulties maybe can't work, thereby can't discharge the air in the new filter cleaner.
By the existing hand pump Quality Feedback in market is added up, because of oil quality causes the probability of one-way valve inefficacy greatly about about 3%, and for the worse light card of fuel qualities, minibus market, the hand pump one-way valve lost efficacy and the inefficacy that causes especially up to about 10%.
Though another kind of hand pump has the exhaustion functional oil on the market, but because it is that fuel oil elder generation process oil pipe, hand pump filler opening are to filter cleaner, the process in line check valve is to the hand pump pump chamber, pass through fuel-displaced one-way valve again to the hand pump oil outlet, it has the exhaustion functional oil, but because it is when the motor proper functioning, fuel oil need advance long and narrow turnover pump chamber oil duct and reach into and out of oily individual event valve, thereby this oil flow resistance is bigger, hand pump oil inlet and outlet pressure difference is bigger, reduced the working life of filter cleaner, increased client's user cost.
Summary of the invention
For the working life and the replacement cycle of improving the fuel filter hand pump, the utility model provides a kind of fuel filter hand pump with the low flow resistance of exhaustion functional oil.
Concrete architecture advances scheme is as follows:
Fuel filter hand pump with the low flow resistance of exhaustion functional oil comprises the pump housing 12, advances pump oil duct 13, oil input channel 2, in line check valve 3, hand pump gland 5, pressure spring 6, diaphragm 7, fuel-displaced one-way valve 8, go out pump chamber oil duct 9 and oil road 10; Advancing pump oil duct 13, to be positioned at the pump housing 12 middle parts axial, and in line check valve 3 is communicated with pump chambers, and the pump chamber opposite side is communicated with fuel-displaced one-way valve 8, the outlet of fuel-displaced one-way valve 8 with go out pump chamber oil duct 9 and oil road 10 is connected; Filter cleaner 1 comprises the filter core of filter tank and Qi Nei; Advance pump oil duct 13 and link to each other with filter cleaner 1, filter cleaner 1 the other end is being communicated with oil input channel 2;
Its improvement is: be provided with main one-way valve 11 at the oil outlet place of oil road 10; Advance pump oil duct 13 and be communicated with main one-way valve 11 and in line check valve 3 respectively.
The utility model and existing fuel filter hand pump relatively have the advantage of several respects:
1, the utility model from oil-feed to going out two oil ducts of oil content, be motor proper functioning oil duct and hand pump pump oil oil duct, motor proper functioning oil duct is short and only need reduce flow resistance through 1 one-way valve, reduce operating pressure differential, reached the purpose in the working life that prolongs filter cleaner;
2, the utility model is applicable to wideer range of flow, helps the seriation of product and the batch of expansion product, thereby reduces product cost;
When 3, the utility model was worked, the clean fuel oil after the filtration entered the hand pump inner chamber, can not cause the premature failure of one-way valve, 0 kilometer inefficacy of hand pump more can not occur;
4, architecture advances of the present utility model prolongs the working life of hand pump, can reach working life more than 4 years or 200,000 kilometers, and the replacement cycle prolongs 50%, for the user saves replacement cost.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to accompanying drawing, have that the manual pump of novel fuel filter cleaner comprises the pump housing 12, advances pump oil duct 13, oil input channel 2, in line check valve 3, the bolt 4 of going forward side by side, hand pump gland 5, pressure spring 6, diaphragm 7, fuel-displaced one-way valve 8, go out pump chamber oil duct 9 and oil road 10; Advancing pump oil duct 13, to be positioned at the pump housing 12 middle parts axial, and in line check valve 3 is communicated with pump chambers, and the pump chamber opposite side is communicated with fuel-displaced one-way valve 8, the outlet of fuel-displaced one-way valve 8 with go out pump chamber oil duct 9 and oil road 10 is connected; Filter cleaner 1 comprises the filter core of filter tank and Qi Nei; Advance pump oil duct 13 and link to each other with filter cleaner 1, filter cleaner 1 the other end is being communicated with oil input channel 2; At the oil outlet place of oil road 10 main one-way valve 11 is installed; Advance pump oil duct 13 and be communicated with main one-way valve 11 and in line check valve 3 respectively.
Working principle of the present utility model is as follows:
When hand pump gland 5 and diaphragm 7 lift under the effect of pressure spring 6 elastic force, make volume expansion formation vacuum in the pump chamber, fuel-displaced one-way valve 8 is closed, under the atmospheric pressure effect, in line check valve 3 is opened, and main one-way valve 11 is closed, and air in filter cleaner when filter cleaner (new) or filtered clean fuel oil are by advancing pump oil duct 13 in the pump housing 12, enter in the hand pump pump chamber by the in line check valve of opening 3, simultaneously the fuel oil in the fuel tank is in oil input channel 2 replenishes into filter cleaner 1 again; When hand pump gland 5 and diaphragm 7 are depressed, in line check valve 3 is closed, and fuel-displaced one-way valve 8 is opened, and main one-way valve 11 is closed, fuel oil in the hand pump chamber is pressed into out pump chamber oil duct 9 by the fuel-displaced one-way valve of opening 8, again through going out pump chamber oil duct 9, oil road 10 to oil outlet; Repeat like this to press by hand pump gland 5 and diaphragm 7, the air in the filter cleaner 1 will be squeezed by fuel oil and discharge filter tank, and the clean fuel oil behind filter element filtering arrives oil road 10 simultaneously.
Hand pump when work, fuel flow direction: filler opening → oil input channel 2 → filter cleaner 1 → advance pump oil duct 13 → in line check valve 3 → pump chamber → fuel-displaced one-way valve 8 → go out pump chamber oil duct 9 → oil road 10 → oil outlet.
When the filter cleaner of new clothes has been finished exhaust steam turbine and has been in normal working, because motor is to the burning of fuel oil, need constantly there be fuel oil to replenish, this moment fuel oil under the effect of oil transfer pump from fuel tank, oil pipe through oil input channel 2 to filter cleaner 1, clean fuel oil after filter cleaner filters advances the pump oil duct to main one-way valve 11 through hand pump, main one-way valve 11 is under the suction of oil transfer pump, open main one-way valve 11, the main one-way valve 11 of fuel oil process is to oil road 10, form continuous oil transportation, continue fuel feeding to engine pump, rail.
When the motor proper functioning, fuel flow direction: filler opening → oil input channel 2 → filter cleaner 1 → advance pump oil duct 13 → main one-way valve 11 → oil road 10 → oil outlet.
Claims (1)
1, the fuel filter hand pump that has the low flow resistance of exhaustion functional oil, the manual pump of described filter cleaner comprise the pump housing (12), advance pump oil duct (13), oil input channel (2), in line check valve (3), hand pump gland (5), pressure spring (6), diaphragm (7), fuel-displaced one-way valve (8), go out pump chamber oil duct (9) and oil road (10); Advance pump oil duct (13) and be positioned at the pump housing (12) middle part axially, in line check valve (3) is communicated with pump chamber, and the pump chamber opposite side is communicated with fuel-displaced one-way valve (8), the outlet of fuel-displaced one-way valve (8) with go out pump chamber oil duct (9) and oil road (10) is connected; Filter cleaner (1) comprises the filter core of filter tank and Qi Nei; Advance pump oil duct (13) and link to each other with filter cleaner (1), filter cleaner (1) the other end is being communicated with oil input channel (2), it is characterized in that:
The oil outlet place of described oil road (10) is provided with main one-way valve (11); Advance pump oil duct (13) and be communicated with main one-way valve (11) and in line check valve (3) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920143662U CN201391394Y (en) | 2009-04-01 | 2009-04-01 | Fuel filter hand pump with complete oil absorption function and small flow resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920143662U CN201391394Y (en) | 2009-04-01 | 2009-04-01 | Fuel filter hand pump with complete oil absorption function and small flow resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391394Y true CN201391394Y (en) | 2010-01-27 |
Family
ID=41598220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920143662U Ceased CN201391394Y (en) | 2009-04-01 | 2009-04-01 | Fuel filter hand pump with complete oil absorption function and small flow resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391394Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734016A (en) * | 2011-04-11 | 2012-10-17 | 派克汉尼汾液压系统(上海)有限公司 | Fuel oil filter and fuel oil filter seat |
| CN102852682A (en) * | 2011-07-02 | 2013-01-02 | 武汉湛卢压铸有限公司 | Filter hand pump assembly |
| CN108049933A (en) * | 2017-11-17 | 2018-05-18 | 宁波迪尔威动力机械有限公司 | A kind of filtering seat of oil filter |
-
2009
- 2009-04-01 CN CN200920143662U patent/CN201391394Y/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734016A (en) * | 2011-04-11 | 2012-10-17 | 派克汉尼汾液压系统(上海)有限公司 | Fuel oil filter and fuel oil filter seat |
| CN102852682A (en) * | 2011-07-02 | 2013-01-02 | 武汉湛卢压铸有限公司 | Filter hand pump assembly |
| CN108049933A (en) * | 2017-11-17 | 2018-05-18 | 宁波迪尔威动力机械有限公司 | A kind of filtering seat of oil filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20110616 Decision number of declaring invalidation: 16711 Granted publication date: 20100127 |