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A filter and vehicle

A filter and tank technology, applied in the field of filters, can solve problems such as the inability to use low-grade fuel for fuel supply, low-grade fuel tank mixing, fuel conversion valve sticking, etc., to reduce the risk of failure rate, Compact structure, anti-oil mixing effect

Active Publication Date: 2022-07-26
SHANGHAI FLEETGUARD FILTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, since the fuel switching valve is located at the front end of the fuel filter, the fuel passing through the valve body is unfiltered fuel, which often causes failures such as sticking and wear of the fuel switching valve, resulting in the failure of the vehicle to start; in addition, when When fuels of different grades are filtered through the body of a filter tank, it may cause mixed oil in the low-grade fuel tank, which will cause the vehicle to fail to start with low-grade fuel; when multiple filter tanks arranged side by side are used When filtering, the structure is complex, it takes up a lot of space, and the application range is small

Method used

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  • A filter and vehicle
  • A filter and vehicle
  • A filter and vehicle

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Experimental program
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Effect test

Embodiment 1

[0045] This embodiment provides a filter such as figure 1 As shown, it includes an upper tank 11, a lower tank 12, a base 2 and a control valve assembly; specifically, the base 2 is fixedly arranged between the upper tank 11 and the lower tank 12, and the base 2 is provided with a The oil inlet pipeline 21, the oil return pipeline 22 and the oil outlet pipeline 23, the oil inlet pipeline 21 is communicated with the oil outlet pipeline 23, the oil outlet pipeline 23 is communicated with the low pressure oil pump, and the low pressure oil pump can pump oil to the common rail system; the control valve assembly is arranged in the On the base 2, the control valve assembly can control the oil inlet pipeline 21 to alternatively connect the lower tank 12 and the main oil tank, or connect the upper tank 11 and the auxiliary oil tank; the control valve assembly can control the oil return pipeline 22 to alternatively connect to the main oil tank and the common rail system, or the auxilia...

Embodiment 2

[0066] This embodiment provides a filter, and the overall structure of the filter provided in this embodiment is basically the same as that of the filter in Embodiment 1, and only some settings of the control valve assembly are different, and this embodiment does not The same structure as that of the first embodiment will be described in detail.

[0067] The difference between this embodiment and the first embodiment is that, as Figure 8 As shown, the oil inlet control valve and the oil return control valve are both two-position three-way solenoid valves, and the three channels of the first two-position three-way solenoid valve 36 are respectively connected with the upper oil inlet port 211, the lower oil inlet port 212 and the oil inlet pipe. Road 21 is connected, and the three channels of the second two-position three-way solenoid valve 37 are respectively connected with the upper oil return port 221, the lower oil return port 222 and the oil return line 22; the number of s...

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Abstract

The invention discloses a filter and a vehicle, belonging to the technical field of filters. The filter includes an upper tank body, a lower tank body, a base and a control valve assembly, wherein the base is fixedly arranged between the upper tank body and the lower tank body, and an oil inlet pipeline and an oil return pipeline are opened on the base and the oil outlet pipeline, the oil inlet pipeline is communicated with the oil outlet pipeline, the oil outlet pipeline is communicated with the low pressure oil pump, and the low pressure oil pump is communicated with the common rail system; the control valve assembly is arranged on the base, and the control valve assembly can control the oil inlet pipeline to communicate with one another. The lower tank body and the main fuel tank, or the upper tank body and the auxiliary fuel tank; the control valve assembly can control the oil return pipeline to selectively connect the main fuel tank and the common rail system, or connect the auxiliary fuel tank and the common rail system. The vehicle includes the filter described above. The filter and the vehicle of the invention have compact structure, small occupied space, low maintenance cost, wide application range, and can improve the accuracy of fuel returning to the correspondingly marked fuel tank, prevent oil mixing in the fuel tank, and improve the reliability of use. .

Description

technical field [0001] The invention relates to the technical field of filters, in particular to a filter and a vehicle. Background technique [0002] Due to the viscosity-temperature characteristics of diesel itself, diesel engines cannot be started with high-grade (0#) diesel when the ambient temperature is low, but low-grade (-35#) diesel can be used for low-temperature starting, but low-grade diesel The price is relatively high, so commercial vehicles with diesel engines are generally equipped with main and auxiliary fuel tanks. The main fuel tank is filled with high-grade diesel and the auxiliary fuel tank is filled with low-grade diesel. When the vehicle is started in winter, the low-grade fuel is used for fuel supply. When the high-grade fuel is heated to a certain temperature, it is switched to the high-grade fuel tank for fuel supply, thereby reducing the cost of use. In order to achieve fuel switching, the main solution adopted by vehicles on the market is to inst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M37/32F02M37/44F02M37/00
CPCF02M37/32F02M37/44F02M37/0023F02M37/0047F02M37/0052
Inventor 李蕾卢增彩
Owner SHANGHAI FLEETGUARD FILTER
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