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US 11,466,756 B2Granted
System for a belt tensioner
AssigneeFord Global Technologies, LLC
InventorsAllan Kaminski, Kevin Maile
Life of this patent
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Abstract
Systems are provided for a belt tensioner. In one example, the belt tensioner comprises a fluid chamber divided into a first portion and a second portion via a dividing wall. An eccentric housing, which defines the fluid chamber, rotates relative to the dividing wall based on a spring force and a belt force.
Claims19
A belt tensioner for a belt of an engine, the belt tensioner, comprising:
- a shaft;
- an eccentric housing configured to rotate about the shaft;
- a pulley arranged around the eccentric housing;
- a dividing wall extending from the shaft;
- a fluid chamber defined by the eccentric housing, wherein the dividing wall divides the fluid chamber into a first portion and a second portion, wherein fluid contained in the first portion and the second portion dampens movement of the eccentric housing relative to the shaft,
- a resilient element coupled to the eccentric housing and the dividing wall, wherein the resilient element is configured to bias the pulley towards the belt;
- and
- a first protrusion arranged within the resilient member and coupled to the dividing wall, and a second protrusion, which comprises a material more rigid than a material of the first protrusion, coupled to the eccentric housing, wherein an engagement between the first protrusion and the second protrusion reduces a speed at which the resilient member is compressed.
5 more elements
A system, comprising:
- a belt tensioner engaged with a belt of an engine, the belt tensioner comprising an eccentric housing configured to rotate about a shaft;
- a pulley arranged around the eccentric housing;
- a dividing wall extending from the shaft into a fluid chamber, wherein the dividing wall divides the fluid chamber into a first portion and a second portion, wherein a first passage fluidly couples the first portion to the second portion, and wherein a second passage fluidly couples the second portion to an oil sump;
- a spring coupled to each of the eccentric housing and the dividing wall;
- a first protrusion arranged within the spring and coupled to the dividing wall, and;
- a second protrusion, which comprises a material more rigid than a material of the first protrusion, coupled to the eccentric housing, wherein an engagement between the first protrusion and the second protrusion reduces a speed at which the spring is compressed.
3 more elements
A system, comprising:
- a belt tensioner engaged with a belt of an engine, the belt tensioner comprising an eccentric housing configured to rotate about a shaft;
- a pulley arranged around the eccentric housing;
- a dividing wall extending from the shaft into a fluid chamber, wherein the dividing wall divides the fluid chamber into a first portion and a second portion, wherein a first passage fluidly couples the first portion to the second portion, and wherein a second passage fluidly couples the second portion to an oil sump, and wherein the dividing wall is stationary and the eccentric housing moves relative to the dividing wall;
- a spring coupled to each of the eccentric housing and the dividing wall;
- and a first protrusion is arranged within the spring and coupled to the dividing wall, and wherein a second protrusion, which comprises a material more rigid than a material of the first protrusion, is coupled to the eccentric housing, wherein an engagement between the first protrusion and the second protrusion reduces a speed at which the spring is compressed.
2 more elements
Dependencies are inferred from the claim text.