US 11,280,257 B2Granted

Kinematic compliant linkage for turbocharger

AssigneeBorgWarner Inc.

InventorsDavid J. Ledger, Sean N. Hastings, Thomas C. Harris, Jonathan R. Williams

Life of this patent

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Abstract

A linkage extends between an actuator and a valve in a turbocharger. The linkage comprises two spaced member bodies having central portions with opposing curved shapes that extend between ends translatable along and rotatable about spaced pivots. Translation of one member toward the other member compresses the central portions, increasing overall stiffness of the linkage, and translation of one member away from the other member creates a gap between the central portions, allowing independent translation of the ends along the spaced pivots to compensate for misalignment between the actuator and the valve caused by heat and vibration. Another linkage extending between an actuator and a valve in a turbocharger includes two planar spaced member bodies extending between ends translatable along and rotatable about spaced pivots. The two member bodies have different thicknesses.

Claims15

Dependent claims

A linkage (200, 300, 400) extending between an actuator (130) and a valve (124) in a turbocharger (100), the linkage (200, 300, 400) comprising:

a first member (202, 302, 402), comprising:
a first member first end (206, 306, 406);
a first member second end (208, 308, 408);
and
a first member body (214, 314, 414) extending between the first member first end (206, 306, 406) and the first member second end (208, 308, 408);
and
a second member (204, 304, 404), comprising:
a second member first end (210,310,410);
a second member second end (212, 312, 412);
a second member body (216, 316, 416) extending between the second member first end (210, 310, 410) and the second member second end (212, 312, 412);
wherein the first member (202, 302, 402) and the second member (204, 304, 404) are translatable along and rotatable about spaced pivots such that the first member (202, 302, 402) and the second member (204, 304, 404) may move toward and away from one another;
wherein translation of the first member (202, 302, 402) or the second member (204, 304, 404) toward the other of the first member (202, 302, 402) and the second member (204, 304, 404) compresses the first member body (214, 314, 414) and the second member body (216, 316, 416);
and
wherein translation of the first member (202, 302, 402) or the second member (204, 304, 404) away from the other of the first member (202, 302, 402) and the second member (204, 304, 404) creates a gap between the first member body (214, 314, 414) and the second member body (216, 316, 416).

11 more elements

A linkage (400) extending between an actuator (130) and a valve (124) in a turbocharger (100), the linkage (200, 300, 400) comprising:

a first member (202, 302, 402), comprising:
a first member first end (206, 306, 406);
a first member second end (208, 308, 408);
and
a first member body (214, 314, 414) extending between the first member first end (206, 306, 406) and the first member second end (208, 308, 408);
and
a second member (204, 304, 404), comprising:
a second member first end (210,310,410);
a second member second end (212, 312, 412);
a second member body (216, 316, 416) extending between the second member first end (210, 310, 410) and the second member second end (212, 312, 412);
wherein translation of the first member (202, 302, 402) or the second member (204, 304, 404) toward the other of the first member (202, 302, 402) and the second member (204, 304, 404) compresses the first member body (214, 314, 414) and the second member body (216, 316, 416);
wherein translation of the first member (202, 302, 402) or the second member (204, 304, 404) away from the other of the first member (202, 302, 402) and the second member (204, 304, 404) creates a gap between the first member body (214, 314, 414) and the second member body (216, 316, 416);
a third member (434) having the first thickness;
the first member (402) having a first thickness, and the second member (404) having a second thickness different from the first thickness;
wherein translation of the first member (402) or the second member (404) toward the other of the first member (402) and the second member (404) compresses the first member body (414) and the second member body (416);
wherein translation of the first member (402) or the second member (404) away from the other of the first member (402) and the second member (404) creates a gap between the first member body (414) and the second member body (416);
wherein the first member first end (406) and the first member second end (408) define first openings (442) of a first diameter;
wherein the second member first end (410) and the second member second end (412) define second openings (444) of a second diameter;
wherein the first diameter is larger than the second diameter;
a third member first end (436) spaced from the second member first end (410) and pivotably coupled to the actuator (130) by the first pin (226);
a third member second end (438) spaced from the second member second end (412) and pivotably coupled to the valve (124) by the second pin (228);
and
a third member body (440) planarly extending between the third member first end (436) and the third member second end (438).

20 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/070,859Filed 19 Jan 2017 · us provisional application
Priority: 21 Jan 2016
Published: US 2019/0017433 A117 Jan 2019
Granted: 22 Mar 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

F02B 37/186
Arrangements of bypass valves or actuators therefor: arrangements of actuators or linkage for bypass valves
F16C 7/02
Connecting-rods or like links pivoted at both ends ; Construction of connecting-rod heads: constructions of connecting-rods with constant length
F16C 7/08
Connecting-rods or like links pivoted at both ends ; Construction of connecting-rod heads: made from sheet metal
F16H 21/44
All movement being in, or parallel to, a single plane: for conveying or interconverting oscillating or reciprocating motions