WO1997010454A1 - Einrichtung zur abdichtung eines hydrauliksteuergerätes - Google Patents
Einrichtung zur abdichtung eines hydrauliksteuergerätes Download PDFInfo
- Publication number
- WO1997010454A1 WO1997010454A1 PCT/EP1996/003928 EP9603928W WO9710454A1 WO 1997010454 A1 WO1997010454 A1 WO 1997010454A1 EP 9603928 W EP9603928 W EP 9603928W WO 9710454 A1 WO9710454 A1 WO 9710454A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- hydraulic control
- control device
- plate
- distribution
- Prior art date
Links
- 238000007789 sealing Methods 0.000 title claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000000314 lubricant Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 8
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/004—Venting trapped air from hydraulic systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/877—With flow control means for branched passages
- Y10T137/87885—Sectional block structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2186—Gear casings
Definitions
- the invention relates to a device for sealing a hydraulic control device which is mounted on the underside of an automatic transmission.
- the electromagnetic actuators and hydraulic valves are located in the hydraulic control unit.
- Electrohydraulic automatic transmissions are made up of the following assemblies: B. hydro ⁇ dynamic converter, clutch / brakes, hydraulic control unit and an electronic transmission control unit.
- the electronic transmission control unit forms the parameters required for controlling the automatic transmission from input variables.
- Input variables are signals provided by sensors and other electronic control devices, e.g. B. Engine control unit, provided signals.
- the electronic transmission control unit controls the electromagnetic actuators, which are located in the hydraulic control unit, via output signals. Circuits are initiated via the electromagnetic actuators by selecting an appropriate clutch / brake combination.
- the pressure curve during the shift and the pressure level outside the shift are controlled via the electromagnetic actuators.
- the hydraulic control unit consists of an intake snorkel, a valve housing, an intermediate plate with a seal and a channel plate.
- the channel plate and the gear housing come into contact with each other over two surfaces. These two surfaces are designed as sealing surfaces. Leakage can occur at this point due to the setting behavior, change of the preload force, the connecting screws. Since the hydraulic control device is only partially wetted by the lubricant sump, a leak leads to the pump via the suction channel instead of the hydraulic fluid from the lubricant sump Air sucks in from inside the gearbox
- the object of the invention is therefore to ensure safe suction for a hydraulic control device.
- the channel plate has at least one suction channel, a main pressure channel, measuring and distribution channels, the suction channel being at least partially surrounded by a distribution channel.
- the distribution channel has a higher pressure level than the suction channel.
- the distribution channel is located between the suction channel and the outside of the channel plate.
- the main pressure channel is at least partially surrounded by unpressurized auxiliary channels, these being arranged between the main pressure channel and a measuring channel.
- FIG. 1 arrangement and structure of a hydraulic control device
- Fig. 2 channel plate.
- Fig. 1 shows the arrangement and structure of a
- Hydraulic control unit 12 This is a component of the automatic transmission 1 and is located inside the housing 2.
- the hydraulic control unit 12 is fastened to the transmission housing 2 by means of screws 13, sealing surface A.
- the hydraulic control unit 12 is composed of a snorkel with sieve 3, a valve housing 4, an intermediate plate with seal 5 and the channel plate 6.
- the hydraulic control unit 12 is partially wetted by the lubricant sump.
- the level of the lubricant sump is set such that the snorkel and the sieve 3 are covered with lubricant in all driving situations.
- This lubricant level is shown in FIG. 1 with reference symbol B.
- the lubricant level B thus does not reach the sealing surface A.
- a pump arranged in the automatic transmission which is not designated in FIG. 1, sucks by means of the
- Snorkel 3 through the hydraulic control unit through the lubricant from the lubricant sump.
- the intermediate plate with seal 5 is located between the valve housing 4 and the channel plate 6.
- the sealing of the channel plate 6 to the gear housing 2, sealing surface A, takes place in a purely metallic manner. No further seal can be arranged between the channel plate 6 and the housing 2, owing to the setting behavior of the screws 13.
- Fig. 2 shows the channel plate 6 in plan view.
- Reference numeral 7 shows the suction channel through which the pump sucks the lubricant from the lubricant sump through the snorkel.
- the suction channel 7 would suck in air from the interior of the transmission housing 2.
- the solution according to the invention now consists in the suction channel 7 being surrounded by the distribution channel 9 in the direction of the outside of the channel plate.
- the distribution lungskanal 9 leads to a higher pressure level than the Saugka ⁇ channel 7, z. B. 2 bar. If there is a leak, the suction channel 7 sucks the hydraulic fluid out of the distribution channel 9.
- FIG. 2 Another embodiment is also shown in FIG. 2.
- Reference 8 shows the main pressure channel
- the z. B. leads to a pressure level of 16 bar.
- Reference numeral 10 shows a measuring channel z. B. is used to measure the pressure level in the converter clutch.
- a leak would result in the hydraulic fluid migrating from the main pressure channel in the direction of the measuring channel 10 and thus falsifying the measurement result.
- the solution according to the invention now consists in that an auxiliary channel 11 is arranged between the main pressure channel 8 and the measuring channel 10. The auxiliary channel 11 is depressurized. A leak thus leads to the hydraulic fluid migrating from the main pressure channel to the auxiliary channel 11 and thus not being able to reach the measuring channel 10.
- Suction channel sealing points with negative pressure which are either permanently or in certain driving conditions not in the lubricant sump; critical pressure channels in which channels running alongside one another have high pressure differences, e.g. B. Main pressure channel with 16 bar and measuring channel with 5 bar. Typical areas of application would thus be the hydraulic control devices of stepped and continuously variable automatic transmissions.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- General Details Of Gearings (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/981,954 US5916333A (en) | 1995-09-14 | 1996-09-07 | Arrangement for sealing a hydrualic control device |
EP96931779A EP0850371B1 (de) | 1995-09-14 | 1996-09-07 | Einrichtung zur abdichtung eines hydrauliksteuergerätes |
DE59605142T DE59605142D1 (de) | 1995-09-14 | 1996-09-07 | Einrichtung zur abdichtung eines hydrauliksteuergerätes |
JP9511634A JPH11512507A (ja) | 1995-09-14 | 1996-09-07 | 油圧制御装置をシールする機構 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19533977.0 | 1995-09-14 | ||
DE19533977A DE19533977A1 (de) | 1995-09-14 | 1995-09-14 | Einrichtung zur Abdichtung eines Hydrauliksteuergerätes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997010454A1 true WO1997010454A1 (de) | 1997-03-20 |
Family
ID=7772085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/003928 WO1997010454A1 (de) | 1995-09-14 | 1996-09-07 | Einrichtung zur abdichtung eines hydrauliksteuergerätes |
Country Status (6)
Country | Link |
---|---|
US (1) | US5916333A (de) |
EP (1) | EP0850371B1 (de) |
JP (1) | JPH11512507A (de) |
KR (1) | KR19990044401A (de) |
DE (2) | DE19533977A1 (de) |
WO (1) | WO1997010454A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19715609C2 (de) * | 1997-04-15 | 1999-03-11 | Payen Goetze Gmbh | Dichtungssystem für Kraftfahrzeuge |
JP3540546B2 (ja) * | 1997-06-04 | 2004-07-07 | ジヤトコ株式会社 | 自動変速機の油圧制御装置 |
DE19812052A1 (de) * | 1998-03-19 | 1999-09-23 | Zahnradfabrik Friedrichshafen | Hydrauliksteuergerät für ein Automatgetriebe |
DE19904911B4 (de) * | 1999-02-06 | 2005-06-23 | Zf Friedrichshafen Ag | Automatgetriebe |
DE10325984A1 (de) * | 2003-06-07 | 2005-02-03 | Daimlerchrysler Ag | Steuerplatte für ein Automatikgetriebe und Herstellungsverfahren einer Steuerplatte |
DE102012214291A1 (de) | 2011-09-14 | 2013-03-14 | Schaeffler Technologies AG & Co. KG | Hydrauliksteuerung |
DE102012202759A1 (de) | 2012-02-23 | 2013-08-29 | Zf Friedrichshafen Ag | Zwischenblechanordnung für ein hydraulisches Steuergerät |
DE102018206277A1 (de) | 2018-04-24 | 2019-10-24 | Zf Friedrichshafen Ag | Anordnung zur Herstellung einer elektrischen Verbindung eines Aktors |
DE102020212528A1 (de) | 2020-10-05 | 2022-04-07 | Zf Friedrichshafen Ag | Hydrauliksteuerung mit einer Zwischenplatte, aufweisend eine Aussparung zur Verbindung von Hydraulikkanälen in der Hydrauliksteuerung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2228989A1 (de) * | 1973-05-11 | 1974-12-06 | Daimler Benz Ag | |
FR2582061A1 (fr) * | 1985-05-17 | 1986-11-21 | Joubert Jacques | Dispositif d'embase pour un distributeur d'un fluide sous pression destine a commander un dispositif moteur |
DE4134369A1 (de) * | 1990-10-20 | 1992-04-23 | Zahnradfabrik Friedrichshafen | Getriebegehaeuse fuer ein automatgetriebe eines kraftfahrzeugs |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4210034A (en) * | 1977-08-15 | 1980-07-01 | Younger Gilbert W | Channel plate for automatic transmissions |
US4805490A (en) * | 1987-03-23 | 1989-02-21 | General Motors Corporation | Valve and closure assembly for an automatic transmission |
DE4041253C2 (de) * | 1990-12-21 | 1997-02-06 | Zahnradfabrik Friedrichshafen | Automatikgetriebe für Kraftfahrzeuge |
-
1995
- 1995-09-14 DE DE19533977A patent/DE19533977A1/de not_active Withdrawn
-
1996
- 1996-09-07 US US08/981,954 patent/US5916333A/en not_active Expired - Fee Related
- 1996-09-07 JP JP9511634A patent/JPH11512507A/ja active Pending
- 1996-09-07 DE DE59605142T patent/DE59605142D1/de not_active Expired - Fee Related
- 1996-09-07 WO PCT/EP1996/003928 patent/WO1997010454A1/de not_active Application Discontinuation
- 1996-09-07 EP EP96931779A patent/EP0850371B1/de not_active Expired - Lifetime
- 1996-09-07 KR KR1019980701645A patent/KR19990044401A/ko not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2228989A1 (de) * | 1973-05-11 | 1974-12-06 | Daimler Benz Ag | |
FR2582061A1 (fr) * | 1985-05-17 | 1986-11-21 | Joubert Jacques | Dispositif d'embase pour un distributeur d'un fluide sous pression destine a commander un dispositif moteur |
DE4134369A1 (de) * | 1990-10-20 | 1992-04-23 | Zahnradfabrik Friedrichshafen | Getriebegehaeuse fuer ein automatgetriebe eines kraftfahrzeugs |
Also Published As
Publication number | Publication date |
---|---|
JPH11512507A (ja) | 1999-10-26 |
DE59605142D1 (de) | 2000-06-08 |
EP0850371A1 (de) | 1998-07-01 |
KR19990044401A (ko) | 1999-06-25 |
DE19533977A1 (de) | 1997-03-20 |
US5916333A (en) | 1999-06-29 |
EP0850371B1 (de) | 2000-05-03 |
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