US3583526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axle drive, especially for motor vehicles
Assignee: Daimler Benz AG
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Filing: 1968-11-06
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Granted: 1971-06-08
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Expires: 1988-11-06
Abstract
Abstract An axle drive, especially for motor vehicles, in which the halfaxle drive shaft is connected with the input member of a planetary gear and the wheel hub of the associated vehicle wheel with the output member thereof; the planetary gear is arranged within an oiltight housing which includes a rotatable housing case driven by the planetary gear; the reaction member of the planetary gear is securely connected within the oiltight housing with a nonrotating part of the axle drive housing; an annular channel is formed within the oiltight housing that is radially limited by the housing case and is constructed spatially separated from the planetary gear; the annular channel is in communication with the radially outwardly and radially inwardly disposed engaging zones of the planetary gear by way of flow passages while the reaction member of the planetary gear or a part securely connected with the same is constructed as guide apparatus for the annular channel; the guide apparatus is provided, on the one hand, with guide blades on the side of the annular channel for producing an approximately centripetal flow component and with guide cross sections on the side of the gear for the deflection of the centripetal flow component in the direction toward the radially inwardly disposed engaging zones of the planetary gear.
Inventors
- 👤 Werner Mulleder
- 👤 Wolfgang Mosig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:06
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/043; B60K17/046; F; F16; F16H; F16H57/00; F16H57/04; F16H57/042; F16H57/0427; F16H57/048; F16H57/0482; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19991
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
222 words
An axle drive, especially for motor vehicles, in which a half-axle drive shaft is operatively connected with the input member of a planetary gear assembly and the wheel hub of the associated vehicle wheel with the output member thereof, comprising an oiltight housing in which the planetary gear assembly is arranged, said oiltight housing having a housing case rotatably driven by the planetary gear assembly, the reaction member of which is rigidly connected within the oiltight housing with a relatively rigid, nonrotatable part of the axle drive housing, characterized by annular channel means being provided within the oiltight housing, said annular channel means being radially delimited by the housing case and spatially separated from the planetary gear assembly, said planetary gear assembly having radially outwardly disposed and radially inwardly disposed engaging zones, first flow passage means providing a communication between said annular channel means and said radially outwardly disposed engaging zones, and relatively fixed guide means for the annular channel means including guide blade means on a side of the annular channel means for producing an approximately centripetal flow component independent of the direction of rotation of the housing case and guide-deflecting means formed by guide cross sections the side of the planetary gear assembly for deflecting the approximately centripetal flow component in the direction toward the radially inwardly disposed engaging zones.
Claim 2
Dependent Claim
222 words
An axle drive, especially for motor vehicles, in which a half-axle drive shaft is operatively connected with the input member of a planetary gear assembly and the wheel hub of the associated vehicle wheel with the output member thereof, comprising an oiltight housing in which the planetary gear assembly is arranged, said oiltight housing having a housing case rotatably driven by the planetary gear assembly, the reaction member of which is rigidly connected within the oiltight housing with a relatively rigid, nonrotatable part of the axle drive housing, characterized by annular channel means being provided within the oiltight housing, said annular channel means being radially delimited by the housing case and spatially separated from the planetary gear assembly, said planetary gear assembly having radially outwardly disposed and radially inwardly disposed engaging zones, first flow passage means providing a communication between said annular channel means and said radially outwardly disposed engaging zones, and relatively fixed guide means for the annular channel means including guide blade means on a side of the annular channel means for producing an approximately centripetal flow component independent of the direction of rotation of the housing case and guide-deflecting means formed by guide cross sections the side of the planetary gear assembly for deflecting the approximately centripetal flow component in the direction toward the radially inwardly disposed engaging zones.
Claim 3
Dependent Claim
28 words
An axle drive according to claim 1, wherein said guide means is nonrotatably connected with a part securely connected with the reaction member of the planetary gear assembly.
Claim 4
Dependent Claim
28 words
An axle drive according to claim 1, wherein said guide means is operatively connected with the reaction member of the planetary gear assembly to rotate in unison therewith.
Claim 5
Dependent Claim
71 words
An axle drive according to claim 3, in which the axle drive housing includes an axle tube means, flangelike support sleeve means connecting the reaction member of the planetary gear assembly nonrotatably with the axle tube means, the annular channel means being arranged on the side of the flangelike support sleeve means opposite the planetary gear assembly, and the support sleeve means forming an axial boundary for the annular channel means.
Claim 6
Dependent Claim
80 words
An axle drive according to claim 4, wherein the flangelike support sleeve means is provided with second flow passage means connecting the annular channel means with the engaging zones of the planetary gear assembly, and a pair of substantially axially symmetrical guide blade means for controlling each second flow aperture means on the side of the support sleeve means facing the annular channel means, said pair of axially symmetrical guide blade means being securely connected with the support sleeve means.
Claim 7
Dependent Claim
48 words
An axle drive according to claim 5, wherein the cross section of the support sleeve means is delimited within the area of the second flow passage means by flow guide surface means on the side of the planetary gear assembly and on the side of the channel means.
Claim 8
Dependent Claim
208 words
An axle drive, especially for motor vehicles, in which a half-axle drive shaft is operatively connected with the input member of a planetary gear assembly and the wheel hub of the associated vehicle wheel with the output member thereof, comprising an oiltight housing in which the planetary gear assembly is arranged, said oiltight housing having a housing case rotatably driven by the planetary gear assembly, the reaction member of which is rigidly connected within the oiltight housing with a relatively rigid, nonrotatable part of the axle drive housing, characterized by annular channel means formed within the oiltight housing, said annular channel means being radially delimited by the housing case and constructed spatially separated from the planetary gear assembly, said planetary gear assembly having radially outwardly disposed and radially inwardly disposed engaging zones, first flow passage means providing a communication between said annular channel means and said radially outwardly disposed engaging zones, and relatively fixed guide means for the annular channel means including guide blade means on a side of the annular channel means for producing an approximately centripetal flow component and guide-deflecting means on the side of the planetary gear assembly for deflecting the approximately centripetal flow component in the direction toward the radially inwardly disposed engaging zones.
Claim 9
Dependent Claim
208 words
An axle drive, especially for motor vehicles, in which a half-axle drive shaft is operatively connected with the input member of a planetary gear assembly and the wheel hub of the associated vehicle wheel with the output member thereof, comprising an oiltight housing in which the planetary gear assembly is arranged, said oiltight housing having a housing case rotatably driven by the planetary gear assembly, the reaction member of which is rigidly connected within the oiltight housing with a relatively rigid, nonrotatable part of the axle drive housing, characterized by annular channel means formed within the oiltight housing, said annular channel means being radially delimited by the housing case and constructed spatially separated from the planetary gear assembly, said planetary gear assembly having radially outwardly disposed and radially inwardly disposed engaging zones, first flow passage means providing a communication between said annular channel means and said radially outwardly disposed engaging zones, and relatively fixed guide means for the annular channel means including guide blade means on a side of the annular channel means for producing an approximately centripetal flow component and guide-deflecting means on the side of the planetary gear assembly for deflecting the approximately centripetal flow component in the direction toward the radially inwardly disposed engaging zones.
Claim 10
Dependent Claim
71 words
An axle drive according to claim 7, in which the axle drive housing includes an axle tube means, flangelike support sleeve means nonrotatably connecting the reaction member of the planetary gear assembly with the axle tube means, the annular channel means being arranged on the side of the flangelike support sleeve means opposite the planetary gear assembly, and the support sleeve means forming an axial boundary for the annular channel means.
Claim 11
Dependent Claim
80 words
An axle drive according to claim 8, wherein the flangelike support sleeve means is provided with second flow passage means connecting the annular channel means with the engaging zones of the planetary gear assembly, and a pair of substantially axially symmetrical guide blade means for controlling each second flow aperture means on the side of the support sleeve means facing the annular channel means, said pair of axially symmetrical guide blade means being securely connected with the support sleeve means.
Claim 12
Dependent Claim
48 words
An axle drive according to claim 9, wherein the cross section of the support sleeve means is delimited within the area of the second flow passage means by flow guide surface means on the side of the planetary gear assembly and on the side of the channel means.
Claim 13
Dependent Claim
83 words
An axle drive according to claim 8, in which each planet gear assembly includes a planet gear carrier and planet gear wheels with bearing-support means operatively associated therewith, substantially axial oil bore means being provided at each planet gear carrier for the planet gear wheel bearing-support means, and further guide means arranged at the planet gear carrier within an area of the axial bore means thereof which deflects a radial component of an oil stream substantially coaxially toward the respective oil bore means.
Claim 14
Dependent Claim
110 words
An axle drive according to claim 11, wherein the guide blade means have a tapering, unequalsided angular profile in cross section whose longer leg portion is curved in the direction toward the shorter leg portion, two guide blade means each being placed in the assembled position substantially symmetrically against one another with the shorter leg portions thereof, the profile ends of the same types of leg portions being disposed along similar flow radii, on the one hand, and the common profile edge of the two leg portions of a respective guide blade means forming an acute angle with the axis of rotation of the annular channel means, on the other.
Claim 15
Dependent Claim
83 words
An axle drive according to claim 7, in which each planet gear assembly includes a planet gear carrier and planet gear wheels with bearing-support means operatively associated Therewith, substantially axial oil bore means being provided at each planet gear carrier for the planet gear wheel bearing-support means, and further guide means arranged at the planet gear carrier within an area of the axial bore means thereof which deflects a radial component of an oil stream substantially coaxially toward the respective oil bore means.
Claim 16
Dependent Claim
104 words
An axle drive according to claim 13, wherein said further guide means includes guide disc means flangedly connected to the planet gear carrier at the end face thereof which if offset from the planet gear carrier radially outwardly of the oil bore means in a substantially Z-shaped manner and which covers the oil bore means at an axial distance, said guide disc means being also provided with a substantially concentric flow aperture for the oil stream, the guide cross sections at the deflecting means on the side of the gear extending into the concentric flow aperture of the guide disc means with radial play.
Claim 17
Dependent Claim
110 words
An axle drive according to claim 7, wherein the guide blade means have a tapering, unequalsided angular profile in cross section whose longer leg portion is curved in he direction toward the shorter leg portion, two guide blade means each being placed in the assembled position substantially symmetrically against one another with the shorter leg portions thereof, the profile ends of the same types of leg portions being disposed along similar flow radii, on the one hand, and the common profile edge of the two leg portions of a respective guide blade means forming an acute angle with the axis of rotation of the annular channel means, on the other.
Claim 18
Dependent Claim
107 words
An axle drive according to claim 15, in which the planetary gear includes a hollow gear and in which an annular disc means is flangedly connected at the hollow gear assembly of the planetary gear for the axial fastening thereof with a support means, the annular disc means having radial support plate means and the support plate means being provided with third flow passage means for the guide blade means, the average streamlines of respective second and third flow passage means at the annular disc means and at the support means being disposed in a common plane through the axis of rotation of the annular channel means.
Claim 19
Dependent Claim
42 words
An axle drive according to claim 16, wherein the leg portions of the guide blade means placed against one another are cut off at the ends facing the support plate means at an acute angle with respect to the support plate means.
Claim 20
Dependent Claim
70 words
An axle drive according to claim 16, wherein the guide blade means are axially delimited by end faces with parallel surfaces and the end faces of larger cross section are rigidly connected to the support plate means of the annular disc means, the contact surfaces of two guide blade means symmetrically placed against one another being disposed in the common plane of the streamlines of the associated flow passage means.
Claim 21
Dependent Claim
43 words
An axle drive according to claim 18, wherein the leg portions of the guide blade means placed against one another are cut off at the ends facing the support plate means at an acute angle with respect to the support plate means .
Claim 22
Dependent Claim
105 words
An axle drive according to claim 7, wherein the planetary gear is arranged axially within the area of a wheel rim having a rim flange, and wherein the associated wheel hub is nonrotatably connected with the rim flange of the corresponding wheel rim and includes a hub portion whose average diameter is considerably smaller than the internal diameter of the rim flange, said oiltight housing including a housing cover means and flange-tube means, said flange-tube means being nonrotatably connected with said cover means and with the rim flange, the diameter of said flange-tube means being approximately equal to the internal diameter of the rim flange.
Claim 23
Dependent Claim
54 words
An axle drive according to claim 20, in which the wheel hub includes a hub flange approximately matched in its radial dimension to the rim flange, common flange-connecting means between the wheel rim, the flangE-tube means, and the wheel hub, and seal means between the flange of the flange-tube means and the hub flange.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |