公开(公告)号：US10578171B2

公开(公告)日：2020-03-03

申请号：US15758517

申请日：2016-10-04

申请人： Horton, Inc.

发明人： Michael Stevens ,  James R. Preston

IPC分类号： F16D35/02 ,  F16K17/36

摘要： A valve system (44) for reducing morning sickness effects in a viscous clutch (20) having a reservoir (38) with a bore (46-1) includes a valve element (44-1), a counterweight portion (44-2), a pivot (44-3), and a biasing member (44-4). The pivot is located in between the valve element and the counterweight portion, and the valve element and the counterweight portion are configured to commonly move about the pivot between open and closed positions. The biasing member is configured to bias the valve element to cover the bore in the closed position by default. The counterweight portion is configured to counteract the biasing member under centrifugal loading such that the valve element at least partially uncovers the bore in the open position.

公开(公告)号：US10578170B2

公开(公告)日：2020-03-03

申请号：US15758478

申请日：2016-10-04

申请人： Horton, Inc.

发明人： Scott Miller ,  Derek Savela ,  Michael Stevens

IPC分类号： F16D35/02

摘要： A viscous clutch (20; 20′) includes a rotor (26), a housing (24) that at least partially surrounds the rotor, a center shaft (22) rotationally fixed to the housing, a mounting disk (30) rotationally fixed to the rotor, a working chamber (38) defined between the rotor and the housing, a reservoir (36) for holding a supply of shear fluid, an electromagnet (34), a valve assembly (32) to selectively control flow of the shear fluid between the reservoir and the working chamber, and a flux guide (54) operatively positioned between the electromagnet and the armature. At least a portion of the mounting disk extends outside the housing. The valve assembly including an armature (32-3) that is selectively movable in response to magnetic flux generated by the electromagnet, and the magnetic flux is transmitted between the armature and the electromagnet along a flux circuit. The flux guide extends through the mounting disk.

公开(公告)号：US20180355925A1

公开(公告)日：2018-12-13

申请号：US15780415

申请日：2016-12-02

申请人： Horton, Inc.

发明人： David R. Hennessy ,  Michael Stevens

IPC分类号： F16D35/02 ,  F16D35/00

CPC分类号： F16D35/02 ,  F16D35/005 ,  F16D35/024 ,  F16D2121/20 ,  F16D2300/0212

摘要： A viscous clutch includes an input member, an output member, a working chamber, a reservoir to hold a supply of a shear fluid, an outlet, a return bore, an accumulator, and a first wall having an arcuate segment. The reservoir is connected to the working chamber by a fluid circuit, along which the outlet passes the shear fluid from the reservoir to the working chamber and the return bore returns the shear fluid pumped out of the working chamber to the accumulator. The accumulator is arranged in series with the reservoir in the fluid circuit. The first wall is positioned within the reservoir to separate a first portion from a second portion.

公开(公告)号：US20180274602A1

公开(公告)日：2018-09-27

申请号：US15994267

申请日：2018-05-31

申请人： Horton, Inc.

发明人： David R. Hennessy ,  Michael Stevens

IPC分类号： F16D35/02

CPC分类号： F16D35/024 ,  F16D35/005 ,  F16D35/02 ,  F16D2121/20 ,  F16D2300/0212

摘要： A viscous clutch (20; 120; 220) includes an input member (24; 126; 224), an output member (26; 124; 226), a working chamber (38; 138; 238), a reservoir (36; 136; 236; 504; 604; 704; 804; 904; 1004; 1104) to hold a supply of a shear fluid, an outlet (36-2; 182; 236-2; 512; 612; 712; 812; 912; 1012; 1112), a return bore (26-2; 124B; 226-2), an accumulator (72; 502; 602; 702; 802; 902; 1002; 1102), and a first wall (70-1; 170; 270; 506; 606; 706; 806; 906; 1006; 1106) having an arcuate segment (70-1A; 506B; 606B; 706B; 806B; 906B; 1006B; 1106B). The reservoir is connected to the working chamber by a fluid circuit, along which the outlet passes the shear fluid from the reservoir to the working chamber and the return bore returns the shear fluid pumped out of the working chamber to the accumulator. The accumulator is arranged in series with the reservoir in the fluid circuit. The first wall is positioned within the reservoir to separate a first portion from a second portion.

公开(公告)号：US20180259009A1

公开(公告)日：2018-09-13

申请号：US15758478

申请日：2016-10-04

申请人： Horton, Inc.

发明人： Scott Miller ,  Derek Savela ,  Michael Stevens

IPC分类号： F16D35/02

摘要： A viscous clutch (20; 20′) includes a rotor (26), a housing (24) that at least partially surrounds the rotor, a center shaft (22) rotationally fixed to the housing, a mounting disk (30) rotationally fixed to the rotor, a working chamber (38) defined between the rotor and the housing, a reservoir (36) for holding a supply of shear fluid, an electromagnet (34), a valve assembly (32) to selectively control flow of the shear fluid between the reservoir and the working chamber, and a flux guide (54) operatively positioned between the electromagnet and the armature. At least a portion of the mounting disk extends outside the housing. The valve assembly including an armature (32-3) that is selectively movable in response to magnetic flux generated by the electromagnet, and the magnetic flux is transmitted between the armature and the electromagnet along a flux circuit. The flux guide extends through the mounting disk.

公开(公告)号：US10578172B2

公开(公告)日：2020-03-03

申请号：US15994267

申请日：2018-05-31

申请人： Horton, Inc.

发明人： David R. Hennessy ,  Michael Stevens

IPC分类号： F16D35/02 ,  F16D35/00 ,  F16D121/20

摘要： A viscous clutch includes an input member, an output member, a working chamber, a reservoir to hold a supply of a shear fluid, an outlet, a return bore, an accumulator, and a first wall having an arcuate segment. The reservoir is connected to the working chamber by a fluid circuit, along which the outlet passes the shear fluid from the reservoir to the working chamber and the return bore returns the shear fluid pumped out of the working chamber to the accumulator. The accumulator is arranged in series with the reservoir in the fluid circuit. The first wall is positioned within the reservoir to separate a first portion from a second portion.