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公开(公告)号：US10890234B2
公开(公告)日：2021-01-12
申请号：US16337436
申请日：2017-09-29
Applicant: Linamar Corporation , Michael C Sefcik , Joe Dear , Ray Coger
Inventor： Michael C Sefcik , Joe Dear , Ray Coger
Abstract: A family of two speed transmissions has a plurality of members that can be utilized in drive trains to provide varying gear ratios. The transmission family members include step pinion planetary gear sets. In one embodiment, there is a single step pinion planetary gear set with two sun gears configured selectively as the transmission input, two ring gears, one of which is rigidly attached to ground and the other is configured to act as the transmission output. In another embodiment, there is removed one of the ring gears and there is added a planetary reduction gear set comprised of a sun gear, a ring gear rigidly attached to ground and a planetary carrier configured to act as the transmission output. In another embodiment, there is provided a transmission comprising a plurality of helical gear sets and a planetary gear set for speed reduction.
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公开(公告)号：US20170363197A1
公开(公告)日：2017-12-21
申请号：US15534250
申请日：2015-12-11
Applicant: Linamar Corporation
Inventor： Michael C Sefcik , Michael Biga, II
Abstract: A drive gear assembly rotatably drives a driven gear of an engine component. The drive gear assembly comprises a drive shaft extending longitudinally along an axis. A main drive gear is operatively coupled to the drive shaft and a scissor gear is aligned coaxially with the main drive gear. A scissor spring is disposed and operatively coupled between the main drive gear and the scissor gear and biased therebetween wherein the main drive gear and the scissor gear rotate about the axis relative to each other. An isolation mechanism is operatively coupled between the main drive gear and the drive shaft for absorbing impulse loads generated by the driven gear when engaged with the main drive gear.
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公开(公告)号：US20200032882A1
公开(公告)日：2020-01-30
申请号：US16337436
申请日：2017-09-29
Applicant: Linamar Corporation
Inventor： Michael C Sefcik , Joe Dear , Ray Coger
IPC: F16H3/66
Abstract: A family of two speed transmissions has a plurality of members that can be utilized in drive trains to provide varying gear ratios. The transmission family members include step pinion planetary gear sets. In one embodiment, there is a single step pinion planetary gear set with two sun gears configured selectively as the transmission input, two ring gears, one of which is rigidly attached to ground and the other is configured to act as the transmission output. In another embodiment, there is removed one of the ring gears and there is added a planetary reduction gear set comprised of a sun gear, a ring gear rigidly attached to ground and a planetary carrier configured to act as the transmission output. In another embodiment, there is provided a transmission comprising a plurality of helical gear sets and a planetary gear set for speed reduction.
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公开(公告)号：US10436303B2
公开(公告)日：2019-10-08
申请号：US15534250
申请日：2015-12-11
Applicant: Linamar Corporation
Inventor： Michael C Sefcik , Michael Biga, II
Abstract: A drive gear assembly rotatably drives a driven gear of an engine component. The drive gear assembly comprises a drive shaft extending longitudinally along an axis. A main drive gear is operatively coupled to the drive shaft and a scissor gear is aligned coaxially with the main drive gear. A scissor spring is disposed and operatively coupled between the main drive gear and the scissor gear and biased therebetween wherein the main drive gear and the scissor gear rotate about the axis relative to each other. An isolation mechanism is operatively coupled between the main drive gear and the drive shaft for absorbing impulse loads generated by the driven gear when engaged with the main drive gear.
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