公开(公告)号：US20180209328A1

公开(公告)日：2018-07-26

申请号：US15933623

申请日：2018-03-23

Applicant: BorgWarner Inc.

Inventor： Robert Lotz ,  Brian Handlon ,  Jason Chekansky

IPC: F02B37/18 ,  F01D17/10

Abstract: A wastegate assembly with a valve head moved linearly toward and away from a wastegate port via a valve stem. When the valve is in an open position the valve seat face of the valve head is spaced apart from the valve seat. When the valve is in a closed position the valve seat face of the valve head is secured against the valve seat. The wastegate assembly includes a sidewall surrounding the wastegate port elongated in the direction of valve movement. The contoured side wall widens going away from the valve seat. The minimum flow area through the wastegate port is controlled such that the flow is choked via the side wall rather than the valve curtain area. The contoured side wall can be recessed into the housing or extend from the housing.

公开(公告)号：US09988974B2

公开(公告)日：2018-06-05

申请号：US15026621

申请日：2014-10-07

Applicant: BorgWarner Inc.

Inventor： Robert Lotz ,  Brian Handlon ,  Jason Chekansky

IPC: F02D23/00 ,  F16K27/00 ,  F16K24/00 ,  F02B37/18 ,  F02B39/00 ,  F02B37/02 ,  F02C6/12 ,  F16K1/20 ,  F16K1/42 ,  F16K1/54 ,  F16K27/02

CPC classification number: F02B37/183 ,  F02B37/02 ,  F02B39/00 ,  F02C6/12 ,  F16K1/20 ,  F16K1/42 ,  F16K1/54 ,  F16K27/0227 ,  Y02T10/144

Abstract: An exhaust gas turbocharger with a wastegate port configured to permit some exhaust gas flow to exit a turbine volute upstream of the turbine wheel and enter a bypass channel thereby bypassing the turbine wheel, a valve with a valve head dimensioned to seat on a valve seat and to move between a seated position and an open position, the bypass channel having a sidewall contoured to surround the valve head as the valve head moves between the seated position and the open position, he bypass channel sidewall shaped so that a throat area (At) area between the bypass channel sidewall and valve head gradually increases as the valve head moves between the seated and the open position, such the bypass flow is controlled by the throat area (At) and not the area between the valve head and the valve seat.

公开(公告)号：US10422276B2

公开(公告)日：2019-09-24

申请号：US15933623

申请日：2018-03-23

Applicant: BorgWarner Inc.

Inventor： Robert Lotz ,  Brian Handlon ,  Jason Chekansky

IPC: F02B37/18 ,  F01D17/10 ,  F16K1/20 ,  F16K1/42

Abstract: A wastegate assembly with a valve head moved linearly toward and away from a wastegate port via a valve stem. When the valve is in an open position the valve seat face of the valve head is spaced apart from the valve seat. When the valve is in a closed position the valve seat face of the valve head is secured against the valve seat. The wastegate assembly includes a sidewall surrounding the wastegate port elongated in the direction of valve movement. The contoured side wall widens going away from the valve seat. The minimum flow area through the wastegate port is controlled such that the flow is choked via the side wall rather than the valve curtain area. The contoured side wall can be recessed into the housing or extend from the housing.

公开(公告)号：US09523414B2

公开(公告)日：2016-12-20

申请号：US14375447

申请日：2013-01-29

Applicant: BorgWarner Inc.

Inventor： Jason Chekansky

IPC: F16H7/08

CPC classification number: F16H7/08 ,  F16H7/0836 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859

Abstract: A variable flow hydraulic tensioner (10) for a chain or belt can include a fixed member (12) having a first port (12a), and a movable member (14) in engaged with the fixed member (12). The movable member (14) can include a second port (14a) initially aligned with respect to the first port (12a) to allow fluid flow therethrough. A first spring (16) can bias the movable member (14) with respect to the fixed member (12) to align the first and second ports (12a, 14a) with respect to one another to allow fluid flow therethrough. A second spring (18) can have less spring force than the first spring (16) to bias the movable member (14) in an opposite direction with respect to the fixed member (12), such that as the chain or belt wears, a differential force between the first and second springs (16, 18) diminishes until the movable member (14) moves relative to the fixed member (12) sufficiently to offset the first and second ports (12a, 14a) with respect to one another to prevent fluid flow therethrough.

Abstract translation: 用于链条或皮带的可变流量液压张紧器（10）可以包括具有第一端口（12a）的固定构件（12）和与固定构件（12）接合的可动构件（14）。 可移动构件（14）可以包括相对于第一端口（12a）最初对齐的第二端口（14a），以允许流体流过其中。 第一弹簧（16）可相对于固定构件（12）偏压可移动构件（14），以使第一和第二端口（12a，14a）相对于彼此对准以允许流体流过其中。 第二弹簧（18）可以具有比第一弹簧（16）更小的弹簧力，以相对于固定构件（12）在相反方向上偏压可动构件（14），使得当链条或皮带磨损时， 第一和第二弹簧（16,18）之间的差动力减小，直到可移动构件（14）相对于固定构件（12）充分移动以相对于彼此偏移第一和第二端口（12a，14a）以防止 流体流过其中。

公开(公告)号：US20150024886A1

公开(公告)日：2015-01-22

申请号：US14375447

申请日：2013-01-29

Applicant: BorgWarner Inc.

Inventor： Jason Chekansky

IPC: F16H7/08

CPC classification number: F16H7/08 ,  F16H7/0836 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859

Abstract: A variable flow hydraulic tensioner (10) for a chain or belt can include a fixed member (12) having a first port (12a), and a movable member (14) in engaged with the fixed member (12). The movable member (14) can include a second port (14a) initially aligned with respect to the first port (12a) to allow fluid flow therethrough. A first spring (16) can bias the movable member (14) with respect to the fixed member (12) to align the first and second ports (12a, 14a) with respect to one another to allow fluid flow therethrough. A second spring (18) can have less spring force than the first spring (16) to bias the movable member (14) in an opposite direction with respect to the fixed member (12), such that as the chain or belt wears, a differential force between the first and second springs (16, 18) diminishes until the movable member (14) moves relative to the fixed member (12) sufficiently to offset the first and second ports (12a, 14a) with respect to one another to prevent fluid flow therethrough.

Abstract translation: 用于链条或皮带的可变流量液压张紧器（10）可以包括具有第一端口（12a）的固定构件（12）和与固定构件（12）接合的可动构件（14）。 可移动构件（14）可以包括相对于第一端口（12a）最初对齐的第二端口（14a），以允许流体流过其中。 第一弹簧（16）可相对于固定构件（12）偏压可移动构件（14），以使第一和第二端口（12a，14a）相对于彼此对准以允许流体流过其中。 第二弹簧（18）可以具有比第一弹簧（16）更小的弹簧力，以相对于固定构件（12）在相反方向上偏压可动构件（14），使得当链条或皮带磨损时， 第一和第二弹簧（16,18）之间的差动力减小，直到可移动构件（14）相对于固定构件（12）充分移动以相对于彼此偏移第一和第二端口（12a，14a）以防止 流体流过其中。