EP2055630A2 - Entraînement, de préférence pour bateaux - Google Patents

Entraînement, de préférence pour bateaux Download PDF

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Publication number
EP2055630A2
EP2055630A2 EP08016947A EP08016947A EP2055630A2 EP 2055630 A2 EP2055630 A2 EP 2055630A2 EP 08016947 A EP08016947 A EP 08016947A EP 08016947 A EP08016947 A EP 08016947A EP 2055630 A2 EP2055630 A2 EP 2055630A2
Authority
EP
European Patent Office
Prior art keywords
housing
shaft
floating seal
inner body
drive according
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP08016947A
Other languages
German (de)
English (en)
Inventor
Wolfgang Rieseberg
Jürgen Daus
Christian Eschert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
REINTJES GmbH
Original Assignee
REINTJES GmbH
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 REINTJES GmbH filed Critical REINTJES GmbH
Publication of EP2055630A2 publication Critical patent/EP2055630A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/30—Transmitting power from propulsion power plant to propulsive elements characterised by use of clutches

Definitions

  • the invention relates to a drive, preferably for ships, according to the preamble of claim 1.
  • Conventional marine propulsion systems comprise at least one drive motor, at least one propulsion element acting on the water, and at least one torque-transmitting coupling arranged between the propulsion engine and the propulsion element.
  • the clutch is usually a hydraulically actuated or switchable multi-plate clutch, which is arranged in a transmission with a drive shaft and an output shaft.
  • the drive shaft is drivingly connected to the drive motor and the output shaft to the drive element, in particular a propeller.
  • the hydraulically actuated multi-plate clutch makes either directly or indirectly the driving connection between the drive shaft and the output shaft.
  • known hydraulically actuated multi-plate clutches for marine gear pressure oil is supplied to a cylinder or pressure chamber of the multi-plate clutch by an axial and optionally further by a radial bore in the shaft.
  • a piston arranged in the cylinder or pressure chamber presses the disk pack the multi-plate clutch together and closes the multi-plate clutch. Due to the resulting frictional engagement between the inner disks and the outer disks, a
  • the present invention seeks to develop a drive, preferably for ships, according to the preamble of claim 1 such that the pressure medium at high pressure, at high circumferential speeds, the switching element can be fed, the shaft end still is usable elsewhere.
  • a floating seal is provided between the housing and an inner body arranged on the shaft, wherein the pressure medium supply takes place in the form of a feed channel, which may also be from radially outward through the housing and depending on the design of the floating seal the floating seal extends, then opens into an annular groove of the inner body rotating with the shaft and further inside the inner body, preferably parallel to the shaft axis, leading to the switching element.
  • the floating seal is at least one gap between the seal and the inner body and optionally at least one further gap between the seal and generates housing through which or escapes the pressure medium as a desired leakage flow.
  • a preferably concentric annular gap arises between the inner body and the seal, which exerts a blocking effect on the pressure medium and reduces the leakage. It can be built with low leakage current very high pressures.
  • the switching element is a clutch, preferably a multi-plate clutch, wherein the multi-plate clutch is preferably actuated hydraulically by means of a pressure oil.
  • An advantageous embodiment of the invention provides that the housing and / or the floating seal are formed and / or suitable means are arranged such that the floating seal against axial Moving is held.
  • the housing and / or the floating seal are formed and / or suitable means are arranged such that the floating seal does not rotate with the shaft.
  • the housing and / or the floating seal are formed and / or suitable means are arranged such that misalignments and / or displacements of the shaft can be compensated.
  • a development of the invention provides that the floating seal is provided with a feed channel sealing ring, which is preferably mounted by two elastic O-rings in the housing.
  • the O-rings are preferably arranged on both sides of the feed channel in corresponding receiving grooves of the housing and sealing ring. On the one hand, they prevent the axial displacement of the sealing ring and, on the other hand, the rotation of the sealing ring in the housing. On the other hand, the elasticity of the O-rings ensures that possible misalignments or displacements of the shaft are compensated.
  • the floating seal comprises two sealing rings, which are arranged on both sides of the annular groove of the inner body and preferably surround the supply channel having, radially to the annular groove of the inner body facing end of the housing.
  • each seal ring Preferably, on the not facing the annular groove end face of each seal ring also provided on the housing fitting retaining ring is provided, wherein sealing ring and retaining ring are preferably connected to at least one pin.
  • the pins which are introduced in a correspondingly aligned bore between the sealing ring and retaining ring, also allow limited radial mobility of the sealing rings, so that possible misalignments or displacements of the shaft can be compensated and can set a concentric annular gap.
  • the shaft diameter is up to 500 mm, preferably up to 300 mm, the oil pressure up to 30 bar and / or the speeds preferably more than 100, particularly preferably more than 500 U / min.
  • the drive in this case, comprises a fixed housing 10 with at least one shaft 12 mounted therein and at least one hydraulically actuated multi-plate clutch 22.
  • the multi-plate clutch 22 has an outer disk 34 carrying outer disk carrier 36 which is rotatably connected to a shaft, not shown here. Axially between the individual outer disks 34 are arranged inner disks 38, which are attached to an inner disk carrier 40, which in turn is rotatably connected to the shaft 12.
  • the disk set of the multi-disc clutch 22 formed essentially by the inner disks 38 and the outer disk 34 is loadable to transmit torque from the shaft 12 directly or indirectly to the shaft, not shown here, with an axial force exerted by a piston 42, so that said disks 34 and 38 get into frictional engagement with each other.
  • This piston 42 is designed as an annular piston and arranged axially displaceably in a pressure chamber 44.
  • the piston 42 can be acted upon by a hydraulic actuating pressure, which acts in the pressure chamber 44 on the clutch lamella-remote side of the piston 42.
  • the actuating pressure or hydraulic pressure is generated by an oil pump, not shown here.
  • the hydraulic oil necessary for switching is supplied to the pressure chamber 44 according to the invention as follows.
  • a floating sealing ring 24 is provided between the housing 10 and arranged on the shaft 12 inner body 14, a floating sealing ring 24 is provided. Housing 10, inner body 14 and sealing ring 24 surround the Welle12 coaxial.
  • the supply of the hydraulic oil in the pressure chamber 44th takes place according to the invention via a feed channel 16, which extends from radially outward through the housing 10 and further aligned by the floating sealing ring 24, then opens into an annular groove 18 of the co-rotating with the shaft 12 inner body 14 and further within the inner body 14 parallel to the shaft axis 20th leads into the pressure chamber 44.
  • the sealing ring 24 is elastically mounted by two O-rings 26 in the housing 10, wherein the sealing ring 24 and housing 10 corresponding grooves 46 have.
  • Fig. 2 illustrated embodiment provides that between the housing 10 and arranged on the shaft 12 inner body 14 a floating seal in the form of two sealing rings 28 is provided. Housing 10, inner body 14 and sealing rings 28 surround the Welle12 coaxial.
  • the supply of hydraulic oil into the pressure chamber 44 is carried out according to the invention via a feed channel 16, which leads from radially outwardly through the housing 10, in an annular groove 18 of the co-rotating with the shaft 12 inner body 14 and further within the inner body 14 parallel to the shaft axis 20 in leads the pressure chamber 44.
  • the floating seal comprises two sealing rings 28 which are arranged on both sides of the annular groove 18 of the inner body 14 and the supply channel 16 having, radially to the annular groove 18 of the inner body 14 facing end of the housing 10 border.
  • each seal ring 28 On the not facing the annular groove 18 end face of each seal ring 28 a fitting to the housing 10 retaining ring 30 is provided, preferably each one the sealing ring 28 is provided with the retaining ring 30 connecting pin 32 is provided.
  • the coaxially enclosing the shaft 12 housing 10 is stepped on both sides of the Zuzhoukanals 16 at its pointing to the annular groove 18 of the inner body 14 radial end, such that pressure surfaces are formed for the sealing rings 28 and further pressure surfaces for the retaining rings 30.
  • At least one gap 48 between seal 24 or 28 and inner body 14 and optionally at least one further gap 50 between seal 24 and housing 10 is generated by the floating seal.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
EP08016947A 2007-11-01 2008-09-26 Entraînement, de préférence pour bateaux Withdrawn EP2055630A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007052542 2007-11-01

Publications (1)

Publication Number Publication Date
EP2055630A2 true EP2055630A2 (fr) 2009-05-06

Family

ID=40352175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08016947A Withdrawn EP2055630A2 (fr) 2007-11-01 2008-09-26 Entraînement, de préférence pour bateaux

Country Status (2)

Country Link
US (1) US20090166143A1 (fr)
EP (1) EP2055630A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5509863A (en) 1991-09-12 1996-04-23 Ab Volvo Penta Transmission device, especially for boat motors
US6884131B2 (en) 2002-01-16 2005-04-26 Yamaha Marine Kabushiki Kaisha Shift mechanism for marine propulsion unit
US20070232161A1 (en) 2006-03-31 2007-10-04 R.T.N. S.R.L. Drive unit, particularly for boats

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373622A (en) * 1980-10-27 1983-02-15 Deere & Company Floating manifold
US5299813A (en) * 1991-12-20 1994-04-05 Ingersoll-Dresser Pump Company Floating seal ring
AT405967B (de) * 1997-12-23 2000-01-25 Steyr Daimler Puch Ag Drehzahldifferenzabhängige hydraulische kupplung
US6338491B1 (en) * 1998-10-21 2002-01-15 Case Corporation Rotary shaft seal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5509863A (en) 1991-09-12 1996-04-23 Ab Volvo Penta Transmission device, especially for boat motors
US6884131B2 (en) 2002-01-16 2005-04-26 Yamaha Marine Kabushiki Kaisha Shift mechanism for marine propulsion unit
US20070232161A1 (en) 2006-03-31 2007-10-04 R.T.N. S.R.L. Drive unit, particularly for boats

Also Published As

Publication number Publication date
US20090166143A1 (en) 2009-07-02

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