AU3983489A

AU3983489A - Combined pre-heating and filtering device, in particular for automobile engines

Info

Publication number: AU3983489A
Application number: AU39834/89A
Authority: AU
Inventors: Anita Sander
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-07-25
Filing date: 1989-07-25
Publication date: 1990-02-19
Also published as: DK10791D0; DE3825176A1; WO1990000925A1; EP0427746B1; DK10791A; JPH03505993A; DE58904232D1; HU894434D0; HUT56295A; EP0427746A1

Description

3 Patent application Utility model application Anita Sander, Gemmingenstr. 16, 7531 Neuhausen 2 A combined coarse and superfine filter system that is assembled in modular fashion Technical field The combined filter system permits coarse filtering and superfine filtering of a contaminated liquid that is connect ed to some circulating system. A coarse filtering makes it possible to achieve a higher throughput of liquid and to work at higher pressures. A superfine filtering, whose element has a relatively small pore width, filters a smaller amount but filters out floating particles more intensively. The combina tion with a fuel filter e.g. means that the heat from heated engine oil has a positive effect on the fuel injection into the engine during operation. Disclosure of the invention The invention is based on the problem of obtaining dif ferent filter finenesses and utilizing temperatures for cool ing or heating, e.g. the resulting heat of the engine oil in an internal combustion engine. By simultaneously combining the engine oil filter and the fuel filter one heats the fuel in such a way as to obtain a more favorable ignition behavior at cold operating temperatures, lower emission of exhaust particulates from diesel engines and lower fuel consumption. This can also be [sic] with other liquids. Any desired number of filter chambers can thus be linked together in modular fashion so that several liquids can be filtered on one filter block, e.g. engine oil coarsely, engine oil finely, water, coolant, gear oil and other liquids, in a motor vehicle.

4 The invention is thus composed of a plurality of filter elements or chambers that can be linked together in any way as required, e.g. cast as a block or with any kind of joints e.g. bayonet or others. The individual modules are provided with connections for feed and return; transverse channels are also provided as a connection from the coarse filter to the superfine filter, i.e. the oil stream divides up from the coarse filter to the superfine filter. These filter chambers can of course also be used as individual elements. The lid opening permits fast replacement of the filter elements or cleaning of the filter candles. In motor vehicles e.g. the engine oil is conducted in this case to the combined filter device through pipe connec tions. Connection to the coarse filter [sic], a channel leads simultaneously to the superfine filter chamber, so that oil change intervals are dramatically increased and the oil re tains its lubricity longer, the wear of an engine is dramati cally reduced, and a clogging of the engine is prevented. The heat radiation of the heated engine oil is simultaneously utilized to heat the fuel in the fuel filter. In our filter device we thus filter oil, water and coolant fluid simultane ously and achieve through radiating heat or cooling technical effects or chemical reactions that were not achieved by con ventional filters. Brief description of the drawings Fig. 1 A longitudinal section through a first embodiment. This is a combined, modular filter system that is connected to some forced feed lubrication. It is used for coarsely or superfinely filtering, heating or cooling a liquid, e.g. oil, fuel, etc. It is mounted e.g. somewhere in the engine room. A main pipe from the oil forced feed lubrication of the engine conducts the oil to combined modular filter housing 1.

5 The feed pipe is connected to provided feed inlet 2. The liquid flows through filter candle 3, the filter fineness is 20 to 200 p. This filter candle or an other filter body is provided with an overflow valve 13. The oil flows in a large amount through opening 4 into the forced feed system. At the same time a partial amount flows through channel 5 into next filter chamber 6. This partial amount of liquid now flows coaxially or vertically through a superfine filter element back through return channel 8 and the purified liquid is conducted at housing connection 9 back into the forced feed lubrication. The lids are opened and closed to replace the superfine filters or clean the filter candle. Beside coarse filter 11 there is filter chamber 12. The fuel e.g. is con ducted into this filter chamber into connection 20, is filtered in the filter candle and flows through opening 23 back again, e.g. to the injection means of an engine. Since the heat is transferred to cham ber 12 by heat conduction from chamber 10 e.g. by heated engine oil, the fuel flowing past is heated to 50 to 70 degrees Centigrade and flows with this elevated temperature to the engine. Figs. The individual filter chambers are associated with 3 to 7 each other selectively. Figs. There are a great number of possibilities of com 4 to 7 bination here. Figs. Here, our liquid to be filtered likewise flows e.g. 9, 10 through a coarse filter 40 through filter candle 41 and back through outlet 43. The filter chamber is surrounded by a second chamber 45 where another liquid, separated from filter chamber 41, e.g. water or oil or another liquid, is filtered. Inlet 45 conducts this liquid through the filter element to outlet connection 46. This construction again makes 6 it possible to utilize the thermal effect or the cooling effect. Lid and seal 47, 48 permit constant replacement of the filters. All channels, filter chambers, oil feed pipes and withdrawal pipes can be provided with overflow val ves, reducing valves, thermostats, measuring instru ments. The fuel filter can be equipped with a suc Figs. tion pump. Filter chambers 40, 31 act as insulating 1, 2 channels that prevent a fast escape of heat due to 9, 10 use of the described insulating material. Abstract A modular, combined filter system for liquids The modular, combined filter device comprises a plurality of chambers that consist of coarse filters or superfine fil ters. They can be interconnected by channels. Different liq uids can be filtered separately within one filter block. The temperatures are also utilized to obtain more favorable chem ical reactions that lead e.g. to a saving of energy in inter nal combustion engines or in heating systems, to improved ignition behavior or lower emission of exhaust particulates and thus protect the environment. Also, the superfine filter ing of engine oil makes many oil change intervals superflu ous. The fuel consumption is also reduced. This can of course also be effected through the coolant circulation of the en gine. It is also possible to cool liquid to be filtered. The filter chambers also serve as insulating chambers that pre vent heat from escaping too quickly.

Figures Fig. 1: Combined modular filter device Flow technique Example with three filter chambers Front view Fig. 2: Back view Fig. 3: Top view Figs. 4, 5, 6, 7: Possibilities of arranging modular combined filters Fig. 9: Combined filter device with two liquid filter chambers Fig. 10: Combined filter device with two liquid filter chambers Fig. 11: Filter candle with overflow valve

Claims

2. The coarse filter comprises a metal filter candle Fig. 11 candle whose filter capacity is 20 to 200 p and which has at the head an overflow valve 13 that per mits the banked oil to flow further if the filter clogs. Filter chambers 11 can of course also be Figs. equipped with other means, e.g. thermostats, heat 1 to 7 ing elements and other measuring instruments. Su perfine filters 7 permit coaxial or vertical flow therethrough and can be connected with the coarse filter by channels 5 so that a partial stream of the coarse filter flows off into the superfine filter area.
3. A filter device for internal combustion engines that filters the oil coarsely 11, also filters it superfinely in the other chamber 10, utilizing the heat of the engine oil to heat the fuel in fuel fil ter 12 when it passes through. This changes the re action of the engine, e.g. the emission of exhaust particulates in diesel operated vehicles is signifi cantly lower and the fuel consumption is considera bly reduced. This reduces to a minimum the environ mental problem of exhaust particulates emitted from 2 diesel vehicles. This can of course also be effected by the coolant circulation of the engine, that is branched off to the filter device. But also a cool ing can be achieved. The combined, modular filter device has the effect e.g. on vehicles with internal combustion engines that many oil change intervals are superfluous, emission of exhaust particulates is prevented to a minimum [sic], and it is therefore a solution for environmental protection. Figs. 4. A filter device that filters in one body two dif 9, 10 ferent liquids, e.g. fuel can be filtered in middle chamber 30, and coolant, water or other liquids can be filtered in outer chamber 31. This makes it pos sible to obtain a cooling or heating of the particu lar other liquid and thus more favorable effects or chemical reactions, e.g. in car engines, industrial machines, heating systems. This filter device is also combinable with all others. By screwing out screw body 48 one can remove the entire filter means from filter chamber 30.
5. The filter chambers work simultaneously as insu lating chambers, i.e. heat that has been generated and heats e.g. the fuel chamber does not escape through them as fast because a special paper insu lating material is used that is also suitable in combination for superfine filtering of many liquids. The paper has a weight per unit area of 68 to 95 g/m 2 , is lint-resistant and comprises two crosswise interworked layers that have a high insulating abil ity due to the honeycomb structure and a more or less wadded intermediate layer. Small amounts of synthetic resin hold the structure together. The material is used due to its insulating ability be cause it prevents a fast escape of heat.