US 12,612,765 B2Granted

Hydraulic fitting assembly for a construction vehicle

AssigneeCNH Industrial America LLC

InventorsPaul Wilhelm Rau, Richard Lee Niespodzany, Lonnie L. McGee, Jr.

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Abstract

The present subject matter is directed to a work vehicle, such as a construction vehicle, including a first arm, a second arm pivotably coupled to the first arm, and a hydraulic fitting assembly coupled between the first arm and the second arm at a pivot joint and configured to lubricate the pivot joint. The hydraulic fitting assembly includes a first and second housing each defining a cavity configured to receive a hydraulic fluid therein. The cavity of each of the first and second housing are aligned. The first and second housings are each configured to rotate relative to one another when either the first arm or the second arm is pivoted. The lubrication applicator assembly defines a channel configured to receive a lubricant.

Claims17

Dependent claims

A work vehicle, comprising:

a first arm;
a second arm pivotably coupled to the first arm;
and
a hydraulic fitting assembly coupled between the first arm and the second arm at a pivot joint, the hydraulic fitting assembly comprising:
a first housing, the first housing including a first tube fitting coupled thereto, the first housing defining a cavity configured to receive a hydraulic fluid therein, the first housing being configured to rotate relative to a second housing when at least one of the first arm or the second arm is pivoted;
the second housing, the second housing including a second tube fitting coupled thereto, the second housing rotatably coupled to the first housing such that the second housing is configured to rotate relative to the first housing when at least one of the first arm or the second arm is pivoted, the second housing defining a cavity configured to receive the hydraulic fluid therein, the cavity of the second housing is aligned with the cavity of the first housing;
and
a lubrication applicator assembly at least partially positioned within the cavity of the first housing and the cavity of the second housing, the lubrication applicator assembly defining a channel therein configured to receive a lubricant,
wherein the hydraulic fitting assembly is configured to lubricate the pivot joint.

6 more elements

A system for lubricating a pivot joint of a work vehicle, the system comprising:

a first arm;
a second arm pivotably coupled to the first arm;
and
a hydraulic fitting assembly coupled between the first arm and the second arm at a pivot joint, the hydraulic fitting assembly comprising:
a first housing, the first housing including a first tube fitting coupled thereto, the first housing defining a cavity configured to receive a hydraulic fluid therein, the first housing being configured to rotate relative to a second housing when at least one of the first arm or the second arm is pivoted;
the second housing, the second housing including a second tube fitting coupled thereto, the second housing rotatably coupled to the first housing such that the second housing is configured to rotate relative to the first housing when at least one of the first arm or the second arm is pivoted, the second housing defining a cavity configured to receive the hydraulic fluid therein, the cavity of the second housing is aligned with the cavity of the first housing;
and
a lubrication applicator assembly at least partially positioned within the cavity of the first housing and the cavity of the second housing, the lubrication applicator assembly defining a channel therein configured to receive a lubricant, wherein the hydraulic fitting assembly is configured to lubricate the pivot joint.

5 more elements

A construction vehicle, comprising:

a frame;
a lift arm assembly comprising:
a first arm pivotably coupled to the frame at a first pivot joint;
and
a second arm pivotably coupled to the first arm at a second pivot joint;
and
a hydraulic fitting assembly coupled to the second pivot joint, the hydraulic fitting assembly comprising:
a first housing, the first housing including a first tube fitting coupled thereto, the first housing defining a cavity configured to receive a hydraulic fluid therein, the first housing being configured to rotate relative to a second housing when at least one of the first arm or the second arm is pivoted;
the second housing, the second housing including a second tube fitting coupled thereto, the second housing rotatably coupled to the first housing such that the second housing is configured to rotate relative to the first housing when at least one of the first arm or the second arm is pivoted, the second housing defining a cavity configured to receive the hydraulic fluid therein, the cavity of the second housing is aligned with the cavity of the first housing;
and
a lubrication applicator assembly at least partially positioned within the cavity of the first housing and the cavity of the second housing, the lubrication applicator assembly defining a channel therein configured to receive a lubricant,
wherein the hydraulic fitting assembly is configured to lubricate the second pivot joint.

9 more elements

Dependencies are inferred from the claim text.