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US 3,983,980 AGranted
Fluid shear-friction coupling
AssigneeDaimler-Benz Aktiengesellschaft
InventorJohann Weintz
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AssigneeDaimler-Benz Aktiengesellschaft
InventorJohann Weintz
Estimating the term…
A rotating fluid shear friction coupling with at least one shear friction gap formed by a wall rotating along with the input side and by a wall rotating along with the output side, and with two spaces in communication with the working gap, one on the inlet side and one on the outlet side; the radially outermost passage of the inlet side space into the working gap has radially a larger spacing from the center of rotation than the radially outermost passage from the outlet side space whereby the two spaces are separated from one another by a wall provided with controllable passages; the working gap is also provided with means, for example, in the form of a helical feed groove for the continuous automatic feed of the working medium through the working gap in the direction toward the space on the outlet side; the space on the outlet side has thereby a space portion which is delimited radially outwardly by walls that preferably rotate with one another as a unit, and is disposed radially outwardly of the radius of the radially outermost passage from the gap to the outlet side space whereby the volume of this space portion is such as to be sufficient for accommodating at least the predominant part of the volume of the working medium.
A rotating fluid shear friction coupling which includes at least one working gap means formed by wall means rotating in unison with the input side and output side, respectively, two space means, one space means each in communication with the inlet side of the working gap means and one space means each in communication with the outlet side of the working gap means, the radially outermost passage of the inlet side space means into the working gap means having radially a larger spacing from the center of rotation than the radially outermost passage from the working gap means into the outlet-side space means, both space means being separated from one another by wall means provided with controllable passage means, and means in the working gap means for the continuous automatic feed of the working medium through the working gap means in the direction toward the space means on the outlet side, characterized in that the space means on the outlet side includes a space portion disposed radially outwardly of the radius of the radially outermost passage from the working gap means into said outlet-side space means and is delimited radially outwardly by rotating wall means, the space volume of the space portion being sufficient for the accommodation of at least the predominant portion of the volume of the working medium.
Dependencies are inferred from the claim text.