CN203906273U - Gear pump for fuel dispenser - Google Patents
Gear pump for fuel dispenser Download PDFInfo
- Publication number
- CN203906273U CN203906273U CN201420061902.1U CN201420061902U CN203906273U CN 203906273 U CN203906273 U CN 203906273U CN 201420061902 U CN201420061902 U CN 201420061902U CN 203906273 U CN203906273 U CN 203906273U
- Authority
- CN
- China
- Prior art keywords
- fuel
- housing
- oil
- gear pump
- mounting hole
- 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.)
- Withdrawn - After Issue
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model discloses a gear pump for a fuel dispenser and aims to provide the gear pump which is used for the fuel dispenser and capable of effectively eliminating air in fuel and preventing fuel leakage. According to the technical scheme, the gear pump is characterized in that when the fuel enters a fuel-gas separation chamber from a fuel inlet, the fuel spirally flows towards a fuel outlet along the inner wall of a fuel-gas separation barrel under the action of a spiral flow guiding groove, the air enters a vent chamber from a first vent hole, and the fuel which does not contain the air is discharged out of the fuel outlet, so that the air in the fuel is eliminated; when the fuel enters the vent chamber, the vent chamber is communicated with the fuel inlet, so that the fuel can flow back to the fuel inlet through a return fuel through pipe; a first floating plug device can prevent the air in the vent chamber from being sucked back to the fuel inlet due to negative pressure at the fuel inlet of the pump; a second floating plug device can seal a second vent hole when the flow of the fuel entering the vent chamber is too large, so that accidents and pollution caused by fuel leakage are avoided.
Description
Technical field
The utility model relates to a kind of gear pump, and more particularly, it relates to a kind of gear pump for fuel charger.
Background technique
At present normally be provided with an aperture at common pressure chamber highest point for the gear pump of fuel charger, because air is light, therefore air is always up walked, thereby can discharge from aperture, contains air, and affect the flow validity of oilling machine with the fuel oil of avoiding output.But this structure is full or while flooding exhaust port position, air almost cannot separate and be discharged from fuel oil in common pressure chamber internal combustion oil ratio, and fuel oil easily flows out from exhaust port, and causes the accident and pollute.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of gear pump for fuel charger, and this kind of gas and oil separating plant can effectively be eliminated the air in fuel oil and avoid fuel leakage.
For achieving the above object, the utility model provides following technological scheme: a kind of gear pump for fuel charger, comprise the housing that is provided with filler opening and oil outlet, in described housing inner chamber, be provided with Oil-gas Separation chamber, in described housing inner chamber, be also provided with exhaust chamber and spirality guiding gutter, described Oil-gas Separation chamber includes and is horizontally disposed mounting hole, in described mounting hole, be coaxially provided with one end and be arranged in the gas-oil separating cylinder in mounting hole, this mounting hole is connected with the filler opening of housing by spirality guiding gutter, described gas-oil separating cylinder is connected with respect to the other end of mounting hole and the oil outlet of housing, described mounting hole is provided with first row pore with respect to the other end of gas-oil separating cylinder, the central axes of the central axis of described first row pore and mounting hole and gas-oil separating cylinder, described mounting hole is connected with exhaust chamber by first row pore, the chamber wall of described exhaust chamber is provided with oil return siphunculus for being connected with filler opening and the second row pore for discharged air, in described housing, be provided with the sealed installing seat being connected with oil return siphunculus and act on the first floating plug device of sealed installing seat, described sealed installing seat is provided with the via connecting with oil return siphunculus, in described housing, corresponding second row pore place is provided with the second floating plug device.
Described housing is provided with the pilot hole being connected with first row pore, the central axis of the central axis of described pilot hole and first row pore is angle setting, described housing is provided with the drain boles being connected with exhaust chamber, described housing is provided with sealing cover, is configured for connecting the conducting chamber of pilot hole and drain boles between described sealing cover and housing.
Described the first floating plug device comprises the dwang that float, one end are fixedly connected with float and the sealing plug that seals and conducts hole for connector, described dwang is articulated with housing with respect to the other end of float, described sealing plug is articulated with on dwang, and at float respectively and between dwang and the hinged place of housing.
Described sealing plug is with respect to the tapered structure setting in end of via.
Described sealed installing seat is provided with mounting groove with respect to the end face of sealing plug, and the central axis of described mounting groove and the central axis of via coincide, and is provided with the rubber sheet gasketing suitable with sealing plug in this mounting groove.
Described the second floating plug device comprises that floating plug body and one end are installed on the slippage bar of housing madial wall, described floating plug body is provided with the cavity volume of opening, the opening direction of described cavity volume arranges down, this cavity volume bottom convexes with for being set in the belled part on slippage bar, described floating plug body is connected with the slippage of slippage bar through belled part, this floating plug body convexes with rubber seal plug with respect to the other end of cavity volume opening, described second row pore in housing, be provided with for the suitable rubber seal seat of rubber seal plug.
Described gas-oil separating cylinder outer side wall is provided with screw thread, and this gas-oil separating cylinder removably connects by screw thread and mounting hole.
Described floating plug body and rubber seal plug are Split type structure setting, described floating plug body convexes with installation projection with respect to the other end of opening, described rubber seal plug is provided with the assembly department of installing on projection for being set in, described assembly department outer side wall is provided with circumferential recess, and in described circumferential recess, button is embedded with steel wire.
Described rubber seal plug be provided with for the conflict sealed department of rubber seal seat laminating, described conflict sealed department outer side wall is provided with circumferential deformation groove.
Described gas-oil separating cylinder outer side wall is provided with screw thread, and this gas-oil separating cylinder removably connects by screw thread and mounting hole.
A kind of gear pump for fuel charger, comprise the housing that is provided with filler opening and oil outlet, in described housing inner chamber, be provided with Oil-gas Separation chamber, in described housing inner chamber, be also provided with exhaust chamber and spirality guiding gutter, described Oil-gas Separation chamber includes and is horizontally disposed mounting hole, in described mounting hole, be coaxially provided with one end and be arranged in the gas-oil separating cylinder in mounting hole, this mounting hole is connected with the filler opening of housing by spirality guiding gutter, described gas-oil separating cylinder is connected with respect to the other end of mounting hole and the oil outlet of housing, described mounting hole is provided with first row pore with respect to the other end of gas-oil separating cylinder, the central axes of the central axis of described first row pore and mounting hole and gas-oil separating cylinder, described mounting hole is connected with exhaust chamber by first row pore, the chamber wall of described exhaust chamber is provided with oil return siphunculus for being connected with filler opening and the second row pore for discharged air, in described housing, be provided with the sealed installing seat being connected with oil return siphunculus and act on the first floating plug device of sealed installing seat, described sealed installing seat is provided with the via connecting with oil return siphunculus, in described housing, corresponding second row pore place is provided with the second floating plug device.By adopting technique scheme, in the time that fuel oil enters Oil-gas Separation chamber from filler opening, fuel oil is under the effect of spirality guiding gutter, fuel oil flows to oil outlet twist along the inwall of gas-oil separating cylinder, because air specific weight is less than fuel oil, suffered centrifugal force is compared with little and be gathered in gas-oil separating cylinder horizontal axis position and enter in exhaust chamber from first row pore, and not aeriferous fuel oil is discharged from oil outlet, effectively avoid the fuel oil of output to contain air, and affect the flow validity of oilling machine; And in the time that fuel oil enters in exhaust chamber from first row pore, because exhaust chamber is connected with filler opening by oil return siphunculus, therefore fuel oil can flow back into filler opening place by oil return siphunculus, and the first floating plug device can prevent that the air in exhaust chamber from being sucked back filler opening place by the negative pressure at pump filler opening place; The second floating plug device can be worked as and entered the fuel flow of exhaust chamber when excessive, second row port sealing can be lived, thereby avoid fuel oil to leak and cause the accident and pollute.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model for the gear pump of fuel charger;
Fig. 2 is the A portion structure for amplifying schematic diagram of Fig. 1;
Fig. 3 is the B portion structure for amplifying schematic diagram of Fig. 1.
Reference character: 1, housing; 11, Oil-gas Separation chamber; 111, mounting hole; 112, gas-oil separating cylinder; 113, first row pore; 12, exhaust chamber; 121, oil return siphunculus; 122, second row pore; 13, spirality guiding gutter; 14, sealed installing seat; 141, via; 142, mounting groove; 143, rubber sheet gasketing; 15, the first floating plug device; 151, float; 152, dwang; 153, sealing plug; 16, the second floating plug device; 161, floating plug body; 1611, cavity volume; 1612, belled part; 1613, projection is installed; 162, slippage bar; 163, rubber seal plug; 1631, assembly department; 16311, circumferential recess; 16312, steel wire; 1632, conflict sealed department; 16321, circumferential deformation groove; 17, pilot hole; 18, drain boles; 19, sealing cover; 191, conducting chamber; 20, rubber seal seat.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model is described further for the gear pump embodiment of fuel charger.
A kind of gear pump for fuel charger, comprise the housing 1 that is provided with filler opening and oil outlet, in described housing 1 inner chamber, be provided with Oil-gas Separation chamber 11, in described housing 1 inner chamber, be also provided with exhaust chamber 12 and spirality guiding gutter 13, described Oil-gas Separation chamber 11 includes and is horizontally disposed mounting hole 111, the interior one end that is coaxially provided with of described mounting hole 111 is arranged in the gas-oil separating cylinder 112 in mounting hole 111, this mounting hole 111 is connected with the filler opening of housing 1 by spirality guiding gutter 13, described gas-oil separating cylinder 112 is connected with the oil outlet of housing 1 with respect to the other end of mounting hole 111, described mounting hole 111 is provided with first row pore 113 with respect to the other end of gas-oil separating cylinder 112, the central axes of the central axis of described first row pore 113 and mounting hole 111 and gas-oil separating cylinder 112, described mounting hole 111 is connected with exhaust chamber 12 by first row pore 113, the chamber wall of described exhaust chamber 12 is provided with oil return siphunculus 121 for being connected with filler opening and the second row pore 122 for discharged air, in described housing 1, be provided with the sealed installing seat 14 being connected with oil return siphunculus 121 and act on the first floating plug device 15 of sealed installing seat 14, described sealed installing seat 14 is provided with the via 141 connecting with oil return siphunculus 121, the interior corresponding second row pore of described housing 1 122 places are provided with the second floating plug device 16.In the time that fuel oil enters Oil-gas Separation chamber 11 from filler opening, fuel oil is under the effect of spirality guiding gutter 13, fuel oil flows to oil outlet twist along the inwall of gas-oil separating cylinder 112, because air specific weight is less than fuel oil, suffered centrifugal force is compared with little and be gathered in gas-oil separating cylinder 112 horizontal axis positions and enter in exhaust chamber 12 from first row pore 113, and not aeriferous fuel oil is discharged from oil outlet, effectively avoid the fuel oil of output to contain air, and affect the flow validity of oilling machine; And enter into exhaust chamber 12 when interior from first row pore 113 when fuel oil, because exhaust chamber 12 is connected with filler opening by oil return siphunculus 121, therefore fuel oil can flow back into filler opening place by oil return siphunculus 121, and the first floating plug device 15 can prevent that the air in exhaust chamber 12 from being sucked back filler opening place by the negative pressure at pump filler opening place; The second floating plug device 16 can be worked as and entered the fuel flow of exhaust chamber 12 when excessive, second row pore 122 can be sealed up, thereby avoids fuel oil to leak and cause the accident and pollute.
Described housing 1 is provided with the pilot hole 17 being connected with first row pore 113, the central axis of the central axis of described pilot hole 17 and first row pore 113 is angle setting, described housing 1 is provided with the drain boles 18 being connected with exhaust chamber 12, described housing 1 is provided with sealing cover 19, is configured for connecting the conducting chamber 191 of pilot hole 17 and drain boles 18 between described sealing cover 19 and housing 1.Due to the central axes of first row pore 113 and gas-oil separating cylinder 112 and be horizontally disposed with, therefore the pilot hole 17 that is angle setting with first row pore 113 can effectively reduce fuel oil and enter exhaust chamber 12, and this angle best angle is right angle, make fuel oil as much as possible flow to housing 1 oil outlet, be conducive to improve the working efficiency of Oil-gas Separation.
Described the first floating plug device 15 comprises the dwang 152 that float 151, one end are fixedly connected with float 151 and the sealing plug 153 that seals and conducts hole 141 for connector, described dwang 152 is articulated with housing 1 with respect to the other end of float 151, described sealing plug 153 is articulated with on dwang 152, and at float 151 respectively and between dwang 152 and the hinged place of housing 1.In the time that the fuel oil in exhaust chamber 12 does not float float 151 in savings process, what float 151 was downward can will be articulated with sealing plug 153 on dwang 152 to pressing down by lever principle from gravity, realize plug for seal and live via 141, prevent that the air in exhaust chamber 12 from being sucked back filler opening place by the negative pressure at pump filler opening place, and when the fuel oil in exhaust chamber 12 is in the time putting aside, its oil level is risen to a certain degree can be floated float 151 afterwards, float 151 buoyancy upwards can upwards be lifted the sealing plug 153 being articulated with on dwang 152 by lever principle, via 141 is unlocked, realizing oil return siphunculus 121 connects with exhaust chamber 12, the fuel oil that soaked via 141 is sucked back to filler opening place by the negative pressure at pump filler opening place, and when fuel oil is sucked back cause oil level decline time, float 151 just can fall, drive the downward ballast of sealing plug 153 newly via 141 plugs for seal to be lived, prevent that the air in exhaust chamber 12 from being sucked back filler opening place by the negative pressure at pump filler opening place.
Described sealing plug 153 is with respect to the tapered structure setting in end of via 141.The more convenient sealing plug 153 of the tapered structure in end is inserted in via 141, sealing plug 153 and via 141 are more fitted, be conducive to improve sealing plug 153 and insert the sealing of via 141, prevent in the time that via 141 is lived in sealing plug 153 plugs for seal, air in exhaust chamber 12 is sucked back filler opening place from sealing plug 153 and the gap of via 141 by the negative pressure of pump filler opening, avoids air along with fuel oil enters measurement chamber.
Described sealed installing seat 14 is provided with mounting groove 142 with respect to the end face of sealing plug 153, and the central axis of the central axis of described mounting groove 142 and via 141 coincides, and is provided with the rubber sheet gasketing 143 suitable with sealing plug 153 in this mounting groove 142.Be generally the working life of improving sealing plug 153 and sealed installing seat 14, sealing plug 153 and sealed installing seat 14 material used is metal, as iron, copper, aluminium etc., sealing means while causing sealing plug 153 to be pegged graft with sealed installing seat 14 is that rigidity contacts sealing, sealing effect is poor, sealing while pegging graft for improving sealing plug 153 and sealed installing seat 14, the sealing that rubber sheet gasketing 143 can increase sealing plug 153 while pegging graft with sealed installing seat 14.
Described the second floating plug device 16 comprises that floating plug body 161 and one end are installed on the slippage bar 162 of housing 1 madial wall, described floating plug body 161 is provided with the cavity volume 1611 of opening, the opening direction of described cavity volume 1611 arranges down, these cavity volume 1611 bottoms convex with for being set in the belled part 1612 on slippage bar 162, described floating plug body 161 is connected with 162 slippages of slippage bar through belled part 1612, this floating plug body 161 convexes with rubber seal plug 163 with respect to the other end of cavity volume 1611 openings, described second row pore 122 in housing 1, be provided with for the suitable rubber seal seat 20 of rubber seal plug 163.When the fuel oil in exhaust chamber 12 is in the time putting aside, after making its oil level rise to a certain degree, because floating plug body 161 is provided with the cavity volume 1611 of opening, and the opening direction of cavity volume 1611 arranges down, be full of air in cavity volume 1611 time, floating plug body 161 can upwards be floated by buoyancy, until rubber seal plug 163 and rubber seal seat 20 gluing, sealings, and the oil pressure in floating plug body 161 external worlds is larger, the buoyancy that floating plug body 161 bears is also larger, make rubber seal plug 163 stronger with the sealing of rubber seal seat 20, thereby avoid fuel oil to flow out from second row pore 122, and cause the accident and pollute.
Described floating plug body 161 is Split type structure setting with rubber seal plug 163, described floating plug body 161 convexes with projection 1613 is installed with respect to the other end of opening, described rubber seal plug 163 is provided with the assembly department 1631 of installing on projection 1613 for being set in, described assembly department 1631 outer side walls are provided with circumferential recess 16311, and the interior button of described circumferential recess 16311 is embedded with steel wire 16312.Floating plug body 161 and rubber seal plug 163 are Split type structure and are provided with to be beneficial to and reduce its complex structure degree, are convenient to the manufacturing of floating plug body 161 and rubber seal plug 163, are conducive to reduce production costs; Floating plug body 161 is plugged in being fixedly connected with of the interior realization of assembly department 1631 and rubber seal plug 163 through projection 1613 is installed, and the steel wire 16312 being centered around on assembly department 1631 outer side walls has strengthened being rigidly connected of floating plug body 161 and rubber seal plug 163, is conducive to improve the degree that is connected firmly of floating plug body 161 and rubber seal plug 163.
Described rubber seal plug 163 is provided with the conflict sealed department 1632 for fitting with rubber seal seat 20, and described conflict sealed department 1632 outer side walls are provided with circumferential deformation groove 16321.Circumferential deformation groove 16321 is conducive to increase the elastic deformability of conflict sealed department 1632, the sealing when being conducive to strengthen conflict sealed department 1632 and fitting with rubber seal seat 20.
Described gas-oil separating cylinder 112 outer side walls are provided with screw thread, and this gas-oil separating cylinder 112 removably connects by screw thread and mounting hole 111.Gas-oil separating cylinder 112 is arranged in mounting hole 111 by screw thread, and linkage structure is simple and easy to implement, and cuts and is easy to remove and repair, and also can replace according to demand the gas-oil separating cylinder 112 of different length to meet the different needs.
Claims (10)
1. the gear pump for fuel charger, comprise the housing that is provided with filler opening and oil outlet, in described housing inner chamber, be provided with Oil-gas Separation chamber, it is characterized in that: in described housing inner chamber, be also provided with exhaust chamber and spirality guiding gutter, described Oil-gas Separation chamber includes and is horizontally disposed mounting hole, in described mounting hole, be coaxially provided with one end and be arranged in the gas-oil separating cylinder in mounting hole, this mounting hole is connected with the filler opening of housing by spirality guiding gutter, described gas-oil separating cylinder is connected with respect to the other end of mounting hole and the oil outlet of housing, described mounting hole is provided with first row pore with respect to the other end of gas-oil separating cylinder, the central axes of the central axis of described first row pore and mounting hole and gas-oil separating cylinder, described mounting hole is connected with exhaust chamber by first row pore, the chamber wall of described exhaust chamber is provided with oil return siphunculus for being connected with filler opening and the second row pore for discharged air, in described housing, be provided with the sealed installing seat being connected with oil return siphunculus and act on the first floating plug device of sealed installing seat, described sealed installing seat is provided with the via connecting with oil return siphunculus, in described housing, corresponding second row pore place is provided with the second floating plug device.
2. the gear pump for fuel charger according to claim 1, it is characterized in that: described housing is provided with the pilot hole being connected with first row pore, the central axis of the central axis of described pilot hole and first row pore is angle setting, described housing is provided with the drain boles being connected with exhaust chamber, described housing is provided with sealing cover, is configured for connecting the conducting chamber of pilot hole and drain boles between described sealing cover and housing.
3. the gear pump for fuel charger according to claim 2, it is characterized in that: described the first floating plug device comprises the dwang that float, one end are fixedly connected with float and the sealing plug that seals and conducts hole for connector, described dwang is articulated with housing with respect to the other end of float, described sealing plug is articulated with on dwang, and at float respectively and between dwang and the hinged place of housing.
4. the gear pump for fuel charger according to claim 3, is characterized in that: described sealing plug is with respect to the tapered structure setting in end of via.
5. the gear pump for fuel charger according to claim 4, it is characterized in that: described sealed installing seat is provided with mounting groove with respect to the end face of sealing plug, the central axis of described mounting groove and the central axis of via coincide, and are provided with the rubber sheet gasketing suitable with sealing plug in this mounting groove.
6. according to the gear pump for fuel charger described in claim 1-5 any one, it is characterized in that: described the second floating plug device comprises that floating plug body and one end are installed on the slippage bar of housing madial wall, described floating plug body is provided with the cavity volume of opening, the opening direction of described cavity volume arranges down, this cavity volume bottom convexes with for being set in the belled part on slippage bar, described floating plug body is connected with the slippage of slippage bar through belled part, this floating plug body convexes with rubber seal plug with respect to the other end of cavity volume opening, described second row pore in housing, be provided with for the suitable rubber seal seat of rubber seal plug.
7. the gear pump for fuel charger according to claim 6, is characterized in that: described gas-oil separating cylinder outer side wall is provided with screw thread, and this gas-oil separating cylinder removably connects by screw thread and mounting hole.
8. the gear pump for fuel charger according to claim 6, it is characterized in that: described floating plug body and rubber seal plug are Split type structure setting, described floating plug body convexes with installation projection with respect to the other end of opening, described rubber seal plug is provided with the assembly department of installing on projection for being set in, described assembly department outer side wall is provided with circumferential recess, and in described circumferential recess, button is embedded with steel wire.
9. the gear pump for fuel charger according to claim 7, is characterized in that: described rubber seal plug be provided with for the conflict sealed department of rubber seal seat laminating, described conflict sealed department outer side wall is provided with circumferential deformation groove.
10. the gear pump for fuel charger according to claim 8, is characterized in that: described gas-oil separating cylinder outer side wall is provided with screw thread, and this gas-oil separating cylinder removably connects by screw thread and mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061902.1U CN203906273U (en) | 2014-02-12 | 2014-02-12 | Gear pump for fuel dispenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061902.1U CN203906273U (en) | 2014-02-12 | 2014-02-12 | Gear pump for fuel dispenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906273U true CN203906273U (en) | 2014-10-29 |
Family
ID=51780556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420061902.1U Withdrawn - After Issue CN203906273U (en) | 2014-02-12 | 2014-02-12 | Gear pump for fuel dispenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005951A (en) * | 2014-02-12 | 2014-08-27 | 温州思普机器有限公司 | Gear pump for fuel dispenser |
-
2014
- 2014-02-12 CN CN201420061902.1U patent/CN203906273U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005951A (en) * | 2014-02-12 | 2014-08-27 | 温州思普机器有限公司 | Gear pump for fuel dispenser |
| CN104005951B (en) * | 2014-02-12 | 2016-08-31 | 温州思普机器有限公司 | Gear pump for fuel charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |