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Fuel filter with antifreeze device

A technology of fuel filter and antifreeze device, applied in the direction of cartridge filter, fixed filter element filter, filter separation, etc., can solve the problems of filter blockage and inability to operate the engine, etc.

Inactive Publication Date: 2007-07-11
UFI FILTERS SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, if the engine is kept shut down for a certain period of time at very low temperatures, the waxy substance, such as paraffin, can separate from the diesel and solidify, with the result that the filter clogs, making it impossible to operate the engine

Method used

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  • Fuel filter with antifreeze device
  • Fuel filter with antifreeze device
  • Fuel filter with antifreeze device

Examples

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Embodiment Construction

[0034] The figure shows a diesel filter 1 comprising a housing 2 provided with an inlet conduit 3 for the diesel to be filtered and an outlet conduit 4 for the filtered diesel.

[0035] The housing 2 comprises a cup-shaped body 20 closed by a cover 21 , the interior of which houses an annular filter barrier 5 supported between a lower bottom 22 and an upper short tube 23 branching from the cover 21 . Said filter barrier 5 divides the interior 24 of the housing 1 into two separate chambers 25 and 26, the first chamber 25 being connected to the inlet conduit 3 for the diesel fuel to be filtered and the second chamber 26 being connected to the outlet conduit for the filtered diesel fuel 4 connected (see Figure 1).

[0036] The diesel filter 1 also comprises means 6 for generating pressure waves inside the housing 2 which propagate through the diesel contained in the interior 24 in order to increase its kinetic energy.

[0037] As can be seen from FIG. 1 , in order to make this p...

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PUM

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Abstract

A fuel filter (1) with antifreeze device comprising an outer casing (2), the interior (24) of which is separated by a filtering baffle (5) into two separate chambers (25, 26) to which a fuel inlet conduit (3) and a fuel outlet conduit (4) are connected respectively; said filter (1) comprises a device (6) for generating pressure waves within the casing (2), such that said pressure waves propagate at least through the fuel contained in the interior (24), so increasing its kinetic energy.

Description

technical field [0001] The present invention relates generally to a fuel filter for an internal combustion engine, and more particularly to a diesel filter for use with a diesel engine. Background technique [0002] It is known that diesel fuel often contains impurities, for which reason suitable fuel filters must be provided for the diesel feed system. [0003] Modern diesel filters generally consist of a cup-shaped body closed by a cover and containing a generally annular coaxial filter cartridge. [0004] Two chambers are respectively defined between the core and the cup-shaped body for the passage of diesel fuel to be filtered and filtered diesel oil, the first chamber being connected to the pump unit and the second chamber being connected to the injection system. [0005] The chamber for the passage of diesel fuel to be filtered is usually provided by the interior region of the filter cartridge. [0006] In addition to said impurities, diesel fuel typically also conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D35/20B01D27/08B01D29/60B01D35/18
CPCB01D35/18B01D35/20B01D29/608B01D27/08B01D29/72
Inventor G·吉隆迪
Owner UFI FILTERS SPA