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公开(公告)号：US20190315898A1
公开(公告)日：2019-10-17
申请号：US16466528
申请日：2017-12-05
发明人： Giacomo Casagrande , Ivonne Lucchese , Marco Di Meco , Massimiliano Delli Rocioli , Alessandro D'Auria
IPC分类号： C08F236/12 , F16G1/28 , F16G1/08 , F16H57/04 , C08C19/02
摘要： Power transmission belts have a hydrogenated nitrile-butadiene-PEG acrylate copolymer of 25% to 38% by weight by weight of at least one α,β-ethylenically unsaturated nitrile unit, 40% to 60% by weight by weight of at least one conjugated diene unit and 10% to 25% by weight by weight of at least one PEG acrylate unit derived from a PEG acrylate of the general formula (I) where R is hydrogen or branched or unbranched C1-C20-alkyl, preferably methyl, ethyl, butyl or ethylhexyl, n is 1 to 8, preferably 2 to 8, more preferably 2 to 5 and most preferably 3 and R1 is hydrogen or CH3-, where the hydrogenated nitrile-butadiene-PEG acrylate copolymer, if n is 1, does not contain any further copolymerizable monomer unit having a free carboxylic acid group.
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公开(公告)号：US09945455B2
公开(公告)日：2018-04-17
申请号：US14908141
申请日：2014-07-29
申请人： DAYCO EUROPE S.R.L.
CPC分类号： F16H7/18 , F16H7/023 , F16H7/08 , F16H2007/026 , F16H2007/0812 , F16H2007/0872 , F16H2007/0897
摘要： A transmission system is provided that has a drive pulley, at least one driven pulley and an oil wet toothed belt. The toothed belt includes a toothing and a back, a first portion, wherein the toothing is coupled to the drive pulley, a second portion wherein the toothing is coupled to at least one driven pulley, a first taut branch which develops towards the driving pulley and a second slack branch which develops towards the driven pulley. The transmission system also includes a fixed containment guide having at least a first wall facing the toothing and/or the back positioned at a distance from the toothed belt between a minimum distance where at rest it is not in contact with the toothed belt and a maximum distance equal to 5% of the length of one between the taut branch and the slack branch.
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