WO2005011840A1 - Filtre et boite de vitesses - Google Patents

Filtre et boite de vitesses Download PDF

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Publication number
WO2005011840A1
WO2005011840A1 PCT/IB2003/003079 IB0303079W WO2005011840A1 WO 2005011840 A1 WO2005011840 A1 WO 2005011840A1 IB 0303079 W IB0303079 W IB 0303079W WO 2005011840 A1 WO2005011840 A1 WO 2005011840A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
transmission
opening
micro
oil
Prior art date
Application number
PCT/IB2003/003079
Other languages
English (en)
Inventor
Kirk Joseph Ciak
Pierre Gerard Niewland
Original Assignee
Ntz Nederland Bv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ntz Nederland Bv filed Critical Ntz Nederland Bv
Priority to PCT/IB2003/003079 priority Critical patent/WO2005011840A1/fr
Priority to PCT/IB2004/001925 priority patent/WO2005010376A1/fr
Publication of WO2005011840A1 publication Critical patent/WO2005011840A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/08—Arrangements of lubricant coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F01P2060/045—Lubricant cooler for transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers

Definitions

  • TRANSMISSION AND FILTER The present invention relates to a transmission and to a filter, in particular a micro filtration filter, as defined in the preamble of claim 1 and further independent claims.
  • Transmissions are well known in the art as a means to convert engine power into useable propulsion for vehicles. For their proper operation they are lubricated with specific transmission oil, which at automatic transmissions is often denoted by the term ATF-fluid, i.e. automatic transmission fluid. From time to time it may occur, due to the many operating parts in a transmission casing, that a failure occurs, and that repair is required. In the case of transmissions such repair, due to the complex nature of this machine part, such repair is denoted by the term rebuild of the transmission.
  • the transmission is, for the purpose of saving time to the car owner, exchanged for another transmission, a rebuilt one.
  • a dedicated rebuild industry exists. They most often check, exchange and/or or re-work all parts of the transmission before offering it as a rebuilt transmission. It is desired by the rebuild industry to acquire a high degree of functional reliability of such rebuilt transmissions, not in the last place because of the large costs of warranties that are involved in the automotive field of business. It is therefore an object of the present invention to enhance the quality and reliability of such rebuild transmissions, and to provide the industry with products supporting the same. According to the invention such may is achieved by including the measures provided by the characterising portion of claim 1.
  • the oil used is at least largely kept free from particles and effects of operational wear of such transmissions, which in itself poses an improvement to many if not all of original equipment manufacturer provided transmissions where the degree of such effect is commonly regarded to be insufficient to justify the costs of such filter device in the transmission.
  • another phenomenon exists that at least for increasing the reputation of rebuild transmissions renders such justification, namely the presence of debris of worked transmission parts.
  • These may, compared to particles from ordinary wear of rotating and/or intermeshing parts be relatively large, i.e. in the form of chunks like burrs, e.g. burrs that come off only after some while of operation.
  • Such debris may according to the invention even promote further development of wear particles and even malfunctioning of parts, so that filtration of oil is desired.
  • These phenomena that may to a comparable degree also occur at new transmissions may in particular at modern transmission even be harmful on short term.
  • the latter is due to a relatively large amount of increasingly fine tuned solenoids at such modern transmissions, which solenoids especially because of their precise operation, may become disadvantageous ⁇ affected in their functioning and even blocked by such chunks. Increase of number of such solenoids raises the chance of one of them becoming affected, and thereby the functioning of the transmission.
  • the filter device is at least formed by a strainer filter. The new structure is important due to its usage in rebuilt or remanufactured transmissions.
  • a filtration device thus incorporated in a transmission is favourably and economically incorporated when it is provided within one of said leads between casing and transmission part. No redesign of transmission is required in this manner, while also the filter may easily be exchanged for a new one.
  • the hydraulics filter device is preceded by a strainer filter.
  • a strainer filter further raises installation costs, the presence of it, in particular when the filter device is embodied by a micro filter, for example a cellulose fibre based filter, enhances the proper functioning of the filter.
  • chucks may seated between loose parts thereof, allowing the passage of smaller chunks, in any case decreasing the effectiveness of the filter.
  • surface filtering based, pleated paper filters such chunks might in odd cases even damage such surface.
  • the presence of such strainer in advance of the hydraulics filter enables future savings in that the strainer may at a relatively lower cost be exchanged, while the proper functioning of the hydraulics filter is elongated.
  • the full flow "large debris catching ability" of the strainer filter is combined with a micro-filter to catch small particles, providing protection against both long and short term potential damage.
  • Each filter has its own flow path within the assembly.
  • the large particle catching ability is always functioning. Rather than at in-line filters that are conventionally and solely applied, which are equipped with internal by-pass valves for safety purposes, in this design, the intent is to never have any fluid that is unfiltered. All of the fluid will pass through the strainer. The latter will never plug, due to its large surface area Favourably, the cost of such strainer in addition to a hydraulics filter is in accordance with an even further elaboration of the invention decreased by the strainer being incorporated in the filter housing, in particular by a modification of the entry opening of the housing, allowing the insertion of a strainer, before connecting a hose to the filter.
  • the latter is incorporated in the transmission by connecting it via flexible hoses.
  • the latter are in accordance with the invention provided with a micro-filter, thus enabling, at least strongly promoting a "filled for life concept" for transmission, i.e. taking away the necessity of exchanging oil. Since at least cellulose fibre based kind of micro filters - micro-filters may alternatively be denoted in-depth filters due to the thickness of their filtering body - in addition to withstanding, i.e.
  • the design for practically enabling the concept thereof encompasses a lid part of a filter housing, showing a three way flow path of oil, in particular a transverse flow of oil in the lid.
  • the housing may be used for a so called by-pass filter, in particular a cellulose based micro filter.
  • the by pass is easy to incorporate in the lid, while moreover, it may than easily be positioned between an outgoing and an in-going lead of the casing to a separate transmission part such as a cooler, i.e.
  • the latter thus also relates to a filter device provided with features enabling such configuration of a transmission, in particular to a filter device having means enabling the incorporation of a strainer filter in its lid part.
  • the invention also relates to a filter device having a lid part having a flow path leading to the interior of the housing, and having a flow path connected to the entry opening in the lid, leading to the exterior of the housing.
  • the filter device in particular relates to a micro-filter device, more in particular a cellulose based filter device.
  • Figure 1 is a schematic representation of a basic concept for a transmission in accordance with the invention
  • Figure 2 is a mainly illustrative representation of an elaborated transmission and filter device according to the invention, comprising a strainer filter and a hydraulics filter in a by-pass configuration, connecting two hydraulic leads of a transmission
  • Figure 2 is represents a housing for a strainer filter as one way of incorporating a strainer device into a transmission
  • Figure 4 is a sectional view a lid part of a filter device in accordance with the invention
  • Figure 5 is a top view of the lid part according to figure 4.
  • identical reference numbers relate to identical or at least comparable technical features.
  • Figure 1 shows a transmission with a transmission casing 1 , a transmission part
  • the transmission further incorporates a strainer filter 5 and a hydraulics filter 6.
  • These devices may come either alone or in combination, in which latter case they are according to a further aspect of the invention preferably arranged in a single device housing 7.
  • Figure 2 illustrates a transmission in the same configuration as in figure 1, having a cooling device 3, a strainer device 5, i.e. a full flow kind of filter, and a hydraulics filter 6 in the form of a micro filter, here embodied by a cellulose based micro-filter.
  • Fluid line 4 is divided into sections 4a and 4b, leading to and from the strainer device 5 respectively, and also from the cooler device 3 and to the transmission case 1 respectively.
  • the micro filter 6 is incorporated with the strainer filter 5 in a single unit 7.
  • the strainer device 5 comprises a second outlet, behind the strainer filter in the device, as taken into the direction of flow of hydraulics, leading to said micro filter 6.
  • the unit 7 is connected to the respective hydraulic leads parts 4a, 4b and 2 respectively via flexible hoses 8a, 8b, 8c, ensuring a save interconnection in that it is independent from vibrations. Also minor differences in lengths or distances may be compensated for.
  • the preferred configurations according to the invention i.e.
  • FIG. 1 shows a strainer device 10 as is the basis for the schematic configuration according to figure 1.
  • Strainer 5 is in this figure in exploded view shown in part in front view, depicting the sieve structure of it, preferably with strainer openings of over 50 ⁇ m, preferably around 100 ⁇ m.
  • Figure 4 depicts a transverse section of a lid part 15 embodied as a manifold, of a filter housing.
  • the lid part 15 realises in a simple and practical manner the configuration of figure 3, however with the main stream of oil here realised via entry opening 16, an exit opening 17 for connection to e.g. leads part 4b, following behind a strainer 5, and located in a branched internal fluid line.
  • a further exit opening 18 in said lid part 15 leads to the interior of a filter housing not depicted here, however provided with an exit opening for discharging filtered oil, e.g. for connection to leads 2 in figure 2.
  • Strainer 5 is fixed in position by a fixation part 19, here threaded, i.e. screwed into said lid part 15, and provided with an internal opening, possibly internally threaded for connection of ha hose.
  • the lower side of the lid part 15 shows projections 19 for positioning the lid on to the remainder of the filter housing.
  • the lid according to figure 4 is in practice be used, and may operate in a different arrangement than has been described above. In this respect a currently practiced arrangement is denoted by means of arrows F3, F5 and F1 , indicating an arrangement with feeds F3 from the transmission part 3, F5 from the strainer 5 and a feed F1 , back to the transmission case 1. It is remarked however at this point that both modes of application are valid for realising the desired effet adding to the invention.
  • Figure 5 reflects an upper view of the lid part 15 of figure 4. It further shows bore holes 20 for fixing the lid to the housing, and straight sides 21 of the fixation part 19 for tightening it.
  • the invention apart from the following claims, also relates to the preceding description and all details and aspects in the drawing which are directly and unambiguously derivable there from, at least by a man skilled in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Details Of Gearings (AREA)

Abstract

Boîte de vitesses, en particulier pour un véhicule à moteur, comportant un ensemble d'engrenages et/ou une pièce de transmission variable continue, fonctionnant dans un fluide de transmission contenu dans un carter (1) de la boîte de vitesses, laquelle est pourvue d'une pièce (3) telle qu'un dispositif de refroidissement de fluide et/ou une pompe située en dehors du carter, des conduites séparées (2, 4) étant prévues entre ladite pièce et le carter, comportant une conduite (4) pour l'admission du fluide dans le carter à partir de ladite pièce et une conduite (2) pour l'évacuation du fluide du carter (1) vers ladite pièce, un dispositif de filtration hydraulique (5, 6, 7) étant incorporé à la boîte de vitesses.
PCT/IB2003/003079 2003-07-30 2003-08-01 Filtre et boite de vitesses WO2005011840A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IB2003/003079 WO2005011840A1 (fr) 2003-08-01 2003-08-01 Filtre et boite de vitesses
PCT/IB2004/001925 WO2005010376A1 (fr) 2003-07-30 2004-06-10 Module filtrant et refroidissant integre comprenant un micro-filtre de derivation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2003/003079 WO2005011840A1 (fr) 2003-08-01 2003-08-01 Filtre et boite de vitesses

Publications (1)

Publication Number Publication Date
WO2005011840A1 true WO2005011840A1 (fr) 2005-02-10

Family

ID=34113358

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/003079 WO2005011840A1 (fr) 2003-07-30 2003-08-01 Filtre et boite de vitesses

Country Status (1)

Country Link
WO (1) WO2005011840A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174699A (en) * 1977-12-27 1979-11-20 General Motors Corporation Engine oil processing system
WO1986003687A1 (fr) * 1984-12-18 1986-07-03 Leslie Donald Selsdon Filtres
WO2001007142A1 (fr) * 1999-07-26 2001-02-01 Ntz International Holding B.V. Procede de filtrage pour la microfiltration de l'huile
US6245232B1 (en) * 1999-07-30 2001-06-12 Eaton Corporation Oil filtration system and adapter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174699A (en) * 1977-12-27 1979-11-20 General Motors Corporation Engine oil processing system
WO1986003687A1 (fr) * 1984-12-18 1986-07-03 Leslie Donald Selsdon Filtres
WO2001007142A1 (fr) * 1999-07-26 2001-02-01 Ntz International Holding B.V. Procede de filtrage pour la microfiltration de l'huile
US6245232B1 (en) * 1999-07-30 2001-06-12 Eaton Corporation Oil filtration system and adapter

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