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Flow regulation device, fuel managing system comprising such a device and automotive vehicle comprising such a system

A technology of flow regulating device and return pipe, which is applied in the direction of charging system, liquid fuel feeder, and arrangement combined with fuel supply of internal combustion engine, which can solve the problems of maintenance, unsatisfactory Venturi effect work, and excessive fuel return flow Pipeline working fuel pressure increases and other problems, to ensure the effect of operation

Pending Publication Date: 2020-11-03
VOLVO LASTVAGNAR AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The development of a dual tank system could lead to increased working fuel pressure in the excess fuel return line, causing the Venturi effect to work less satisfactorily
[0004] Existing fuel flow control devices (such as WO 2013 / 060404) do not allow this problem to be solved as they do not maintain the flow through the valve within a predetermined range, but by allowing a greater fluid flow under increased pressure to allow pressure release

Method used

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  • Flow regulation device, fuel managing system comprising such a device and automotive vehicle comprising such a system
  • Flow regulation device, fuel managing system comprising such a device and automotive vehicle comprising such a system
  • Flow regulation device, fuel managing system comprising such a device and automotive vehicle comprising such a system

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Embodiment Construction

[0031] figure 1 A fuel management system 2 integrated in a motor vehicle such as a truck T equipped with an internal combustion engine E is shown. The system 2 comprises an engine supply pipe 4 which is connected to the inlet side E1 of the internal combustion engine E . The engine feed pipe 4 draws fuel from the main tank 6 of the fuel management system 2 to which the engine feed pipe 4 is connected.

[0032] The system 2 also comprises a secondary tank 8 and a delivery pipe 10 arranged to allow fuel to be transferred from the secondary tank 8 to the main tank 6 and preferably prevent fuel circulation in the opposite direction. The delivery pipe 10 includes a non-return valve 12 which only allows fuel to flow from the secondary tank 8 to the main tank 6 . The main tank 6 and the sub tank 8 include fuel suction means and air vents, not shown. The volume of the main storage tank 6 is greater than that of the auxiliary storage tank 8 .

[0033] The system 2 also includes an ...

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Abstract

This flow regulation device comprises a housing (200) having an inlet port (202) and an outlet port (204), and a fluid flow conduit (206) between them, a valve body (208) mounted in the housing (200),and a first (210) and a second (212) orifices allowing fluid flow in the conduit (206). The valve body (208) is movable between an open position, in which the first and second orifices (210, 212) areopen, and a closed position, in which only one (210) of the first and second orifices (210, 212) is open. The flow regulation device (20) comprises a resilient element (214) urging the valve body (208) towards its open position, and the valve body (208) passes from its open to its closed position under action of fluid pressure (P) entering in the inlet port (202).

Description

technical field [0001] The invention relates to a flow regulating device, a fuel management system comprising such a flow regulating device and a motor vehicle, such as a truck, comprising such a fuel management system. Background technique [0002] From US 8 579 332 a motor vehicle, such as a truck, with a dual fuel tank system is known. These systems consist of a main tank, a smaller secondary tank, a fuel delivery system from the secondary tank to the main tank, and an excess fuel return line that draws fuel from the secondary tank due to the Venturi effect. suck fuel. This Venturi effect has an optimal working flow range. [0003] The development of a dual tank system could lead to an increase in working fuel pressure in the excess fuel return line, causing the Venturi effect to work less satisfactorily. [0004] Existing fuel flow control devices (such as WO 2013 / 060404) do not allow this problem to be solved as they do not maintain the flow through the valve within ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/03
CPCB60K15/03B60K2015/03256B60K2015/03296B60K2015/03144F02M37/0017F02M37/0052F02M37/0088
Inventor 埃尔韦·科斯特弗朗索瓦·吉鲁马纳斯·帕塔克
Owner VOLVO LASTVAGNAR AB
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