CN202325936U - Fuel pump assembly with safety device - Google Patents
Fuel pump assembly with safety device Download PDFInfo
- Publication number
- CN202325936U CN202325936U CN2011204767616U CN201120476761U CN202325936U CN 202325936 U CN202325936 U CN 202325936U CN 2011204767616 U CN2011204767616 U CN 2011204767616U CN 201120476761 U CN201120476761 U CN 201120476761U CN 202325936 U CN202325936 U CN 202325936U
- Authority
- CN
- China
- Prior art keywords
- safety valve
- oil
- pressure release
- valve
- passage
- 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
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model relates to accessories for a vehicle, in particular to a fuel pump assembly with a safety device. The utility model provides the following technical scheme that: the fuel pump assembly with the safety device comprises a pump body, an oil outlet pipe and an oil return pipe arranged on the pump body, and a constant pressure valve arranged on the oil return pipe, wherein a jet flow channel is arranged on an outlet where the oil return pipe is connected with an oil supply cavity of a fuel pump; a safety valve communicated with the jet flow channel, the oil supply cavity of the fuel pump and the oil return pipe is arranged on the oil return pipe; a one-way starting mechanism is arranged on a connecting part of the safety valve and the oil supply cavity of the fuel pump; and a one-way starting end of the one-way starting mechanism is arranged towards a valve cavity of the safety valve. Due to the adoption of the technical scheme, the fuel pump assembly with the safety device, which has improved safety and stability, is provided.
Description
Technical field
The utility model relates to a kind of automobile-used accessory, particularly a kind of fuel oil pump assembly with safety installations.
Background technique
The prior fuel oil pump assembly is mainly used in fuel tank and the motor that connects in the car, and it is made up of the pump housing, oil outlet tube and the return tube be located on the pump housing, and oil outlet tube and return tube connect fuel tank and motor respectively; When the pump housing is started working; Oil in the fuel supply chamber of fuel pump is understood some pressure oil and is got back to by reflow pipe in the fuel supply chamber of fuel pump, in this process in oil outlet tube enters into motor after the motor oil-feed is saturated; Because the oil pressure in the fuel supply chamber of return tube and motor and fuel pump is inconsistent; For balanced oil pressure, can constant pressure valve be set on return tube usually, guarantee the Security of whole oil circuit with this.Yet; The end place that reflow pipe is connected with the fuel supply chamber of fuel pump is provided with the jet orifice to pump housing fuel feeding, and when the oil in the return tube was too much, oil can accumulate in the jet orifice place; Accumulation how long then can make the oil pressure in the return tube rise, and has influence on the Security and the stability of whole pipeline.
Summary of the invention
To the deficiency that existing technology exists, the utility model provides a kind of fuel oil pump assembly that improves the band safety installations of Security, stability.
For realizing above-mentioned purpose; The utility model provides following technological scheme: a kind of fuel oil pump assembly with safety installations, and include the pump housing, be located at oil outlet tube and return tube on the pump housing, be located at the constant pressure valve on the return tube, described oil outlet tube and return tube connect the fuel supply chamber and the motor of fuel pump respectively; Reflow pipe is provided with fluidic channel with the outlet port that the fuel supply chamber of fuel pump is connected; It is characterized in that: described reflow pipe is provided with safety valve, and this safety valve includes valve body, is located at safety valve oil inlet passage, safety valve pressure release passage and connecting passage on the valve body, and the safety valve oil-feed is held road, safety valve pressure release passage and connecting passage respectively through being located at the valve pocket conducting on the valve body; Wherein, The safety valve oil inlet passage is connected with return tube, and connecting passage is connected with fluidic channel, and the safety valve pressure release passage is connected with the fuel supply chamber of fuel pump; Be provided with unidirectional opening mechanism in the described safety valve pressure release passage, the unidirectional opening end of this unidirectional opening mechanism is towards the valve pocket setting.
Wherein, Be provided with between the valve pocket of safety valve pressure release passage and safety valve and be connected; This connects the diameter of the diameter in road less than the safety valve pressure release passage, and described unidirectional opening mechanism includes and can seal plunger and the spring that connects the road, and plunger is located at the unidirectional opening end place of unidirectional opening mechanism; Said safety valve pressure release passage is with respect to being provided with spring seat with the other end place that connects an end, and an end of said spring and plunger are conflicted, and the spring seat in the other end and the safety valve pressure release passage is conflicted.
Adopt technique scheme; Through safety valve is set on reflow pipe; And safety valve is provided with safety valve oil inlet passage, safety valve pressure release passage and connecting passage, the two paths (safety valve oil inlet passage and connecting passage) in three passages constituted with fluidic channel and reflow pipe between be communicated with, when the pump housing is started working; Oil gets into motor through oil outlet tube and gets back to return tube then; Get into then and carry out constant voltage in the constant pressure valve, the pressure under the effect of constant pressure valve in the oil circuit gathers higher and higher, up to opening constant pressure valve.Oil is flowed out by fluidic channel through safety valve oil inlet passage approach valve pocket.In order to prevent that a large amount of oil accumulations from causing the rising of pressure in valve pocket; The utility model is provided with the safety valve pressure release passage; During spring force in oil pressure overcomes the safety valve pressure release passage in the unidirectional opening mechanism, plunger moves down along the safety valve pressure release passage, constitutes the conducting of valve pocket and safety valve pressure release passage; Can't drain in the fuel supply chamber of fuel pump through the safety valve pressure release passage by the oil that fluidic channel is discharged even be; Effectively prevented the damage of each oil pipe in rising and the pressure and the oil circuit of oil pressure, the Security that has improved whole oil-way system, required stability when also having improved simultaneously operation.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment's a schematic perspective view;
Fig. 2 is the utility model embodiment's a partial schematic sectional view;
Fig. 3 is the A-A generalized section of Fig. 2.
Embodiment
Like Fig. 1-a kind of fuel oil pump assembly shown in Figure 3 with safety installations; Include the pump housing 1, be located at oil outlet tube 2 and return tube 3 on the pump housing 1, be located at the constant pressure valve 4 on the return tube 3; Oil outlet tube 2 and return tube 3 connect the fuel supply chamber and the motor of fuel pump respectively, and the outlet port that reflow pipe 3 is connected with the fuel supply chamber of fuel pump is provided with fluidic channel 5.Reflow pipe 3 is provided with safety valve 6; This safety valve 6 includes valve body 61, is located at safety valve oil inlet passage 62, safety valve pressure release passage 63 and connecting passage 64 on the valve body 61; Through being located at valve pocket 65 conductings on the valve body 61, wherein, safety valve oil inlet passage 62 is connected with return tube 3 respectively for safety valve oil inlet passage 62, safety valve pressure release passage 63 and connecting passage 64; Connecting passage 64 is connected with fluidic channel 5, and safety valve pressure release passage 63 is connected with the fuel supply chamber of fuel pump.In the such scheme; Through safety valve 6 is set on reflow pipe 3; And safety valve 6 be provided with two paths (safety valve oil inlet passage 62 and connecting passage 64) in safety valve oil inlet passage 62, safety valve pressure release passage 63 and 64, three passages of connecting passage constituted with fluidic channel 5 and reflow pipe 3 between be communicated with, when the pump housing is started working; Oil gets into motor through oil outlet tube 2 and gets back to return tube 3 then; Get into then and carry out constant voltage in the constant pressure valve 4, the pressure under the effect of constant pressure valve 4 in the oil circuit gathers higher and higher, up to opening constant pressure valve 4.Oil gets into safety valve oil inlet passage 62 approach valve pockets 65 and is flowed out by fluidic channel 5.In order to prevent that a large amount of oil accumulations from causing the rising of pressure in valve pocket 65, be provided with unidirectional opening mechanism 7 in the safety valve pressure release passage 63, the unidirectional opening end of this unidirectional opening mechanism 7 is provided with towards valve pocket 65.
In the utility model embodiment; Be provided with between the valve pocket 65 of safety valve pressure release passage 63 and safety valve 5 and be connected 66; This connects the diameter of the diameter in road 66 less than safety valve pressure release passage 63; Unidirectional opening mechanism 7 includes and can seal plunger 71 and the spring 72 that connects road 66, and plunger 71 is located at the unidirectional opening end place of unidirectional opening mechanism 7; Safety valve pressure release passage 63 is with respect to being provided with spring seat 67 with the other end place that is connected 66 connections, one end, and an end of spring 72 and plunger 71 are conflicted, and the spring seats 67 in the other end and the safety valve pressure release passage 63 are conflicted.When the oil pressure in accumulating in valve pocket 65 overcomes in the safety valve pressure release passage 63 spring 72 power in the unidirectional opening mechanism 7; Plunger 71 moves down along safety valve pressure release passage 63; Constitute the conducting of valve pocket 65 and safety valve pressure release passage 63; Can't drain in the fuel supply chamber of fuel pump through safety valve pressure release passage 63 by the oil that fluidic channel 5 is discharged even be; Effectively prevented the damage of each oil pipe in rising and the pressure and the oil circuit of oil pressure, the Security that has improved whole oil-way system, required stability when also having improved simultaneously operation.
Claims (2)
1. fuel oil pump assembly with safety installations; Include the pump housing, be located at oil outlet tube and return tube on the pump housing, be located at the constant pressure valve on the return tube; Described oil outlet tube and return tube connect the fuel supply chamber and the motor of fuel pump respectively, and reflow pipe is provided with fluidic channel with the outlet port that the fuel supply chamber of fuel pump is connected, and it is characterized in that: described reflow pipe is provided with safety valve; This safety valve includes valve body, is located at safety valve oil inlet passage, safety valve pressure release passage and connecting passage on the valve body; Through being located at the valve pocket conducting on the valve body, wherein, the safety valve oil inlet passage is connected with return tube respectively for safety valve oil inlet passage, safety valve pressure release passage and connecting passage; Connecting passage is connected with fluidic channel; The safety valve pressure release passage is connected with the fuel supply chamber of fuel pump, is provided with unidirectional opening mechanism in the described safety valve pressure release passage, and the unidirectional opening end of this unidirectional opening mechanism is towards the valve pocket setting.
2. the fuel oil pump assembly of band safety installations according to claim 1; It is characterized in that: be provided with between the valve pocket of described safety valve pressure release passage and safety valve and be connected; This connects the diameter of the diameter in road less than the safety valve pressure release passage; Described unidirectional opening mechanism includes and can seal plunger and the spring that connects the road, and plunger is located at the unidirectional opening end place of unidirectional opening mechanism; Said safety valve pressure release passage is with respect to being provided with spring seat with the other end place that connects an end, and an end of said spring and plunger are conflicted, and the spring seat in the other end and the safety valve pressure release passage is conflicted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204767616U CN202325936U (en) | 2011-11-25 | 2011-11-25 | Fuel pump assembly with safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204767616U CN202325936U (en) | 2011-11-25 | 2011-11-25 | Fuel pump assembly with safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325936U true CN202325936U (en) | 2012-07-11 |
Family
ID=46437919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204767616U Expired - Fee Related CN202325936U (en) | 2011-11-25 | 2011-11-25 | Fuel pump assembly with safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325936U (en) |
-
2011
- 2011-11-25 CN CN2011204767616U patent/CN202325936U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102678338A (en) | Oil supply pressure regulating system for aircraft engine and regulating method thereof | |
| CN208718814U (en) | A kind of gasoline pressure adjuster denoising structure of fuel oil pump assembly | |
| CN107956612A (en) | A kind of integrated type fuel oil prefilter pump oil exhaust structure | |
| CN202325936U (en) | Fuel pump assembly with safety device | |
| CN104343601A (en) | Filter head for an exchange or housing filter | |
| US9726200B2 (en) | Modular ejector pump for a fuel delivery device | |
| CN202325935U (en) | Filtration constant pressure device for fuel pump | |
| CN104295420A (en) | Fuel oil pump assembly capable of absorbing oil at far end | |
| CN201560872U (en) | Electric fuel pump assembly with low-oil-level oil supply | |
| CN103470414A (en) | Novel manual oil delivery pump for compact-type fuel oil filter | |
| CN203742867U (en) | Oil sprayer oil return pipe assembly | |
| JP2014095349A (en) | Fuel supply device of engine | |
| CN202118312U (en) | Liquid return shutoff valve | |
| CN201351552Y (en) | Diesel filter with automatic air exhaust function | |
| CN204098987U (en) | Combustion oil cooler structure | |
| CN201696191U (en) | Fuel oil supply device of light-duty truck | |
| CN210660382U (en) | Fuel pump integrating siphon structure and jet structure | |
| US11008987B2 (en) | Venturi fluid pump with outlet flow controller | |
| CN104712473B (en) | Fuel service system and corresponding automobile | |
| CN202012430U (en) | Flow dividing type relief valve of common-rail high-pressure pump | |
| CN103485896B (en) | A kind of anti-syphon structure at lubricating oil pump oil suction entrance | |
| US20160356248A1 (en) | Aspirator for internal combustion engine having integrated flow bypass and check valve | |
| CN202024647U (en) | Safety valve of radiator | |
| CN204358190U (en) | With the pressure regulator valve of the automobile fuel pump assembly of non-return filtering mechanism | |
| CN101769216B (en) | Diesel filter for automatically removing air |
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: 20120711 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |