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US 11,353,012 B2Granted
Apparatus to prevent side load in hydraulic override pumps
AssigneeEmerson Process Management Valve Automation, Inc.
InventorsJoseph Sun, Matt Christopherson, Edwin Schreuder
Life of this patent
Estimating the term…
Abstract
An example apparatus to prevent side load in hydraulic override pumps includes a lever rotatably mounted to a support. The apparatus includes a pump cylinder rotatable about a first end of the pump cylinder. The apparatus also includes a pump rod operatively coupled to the lever to move within the pump cylinder based on rotation of the lever. The pump cylinder rotates when the pump rod moves within the pump cylinder.
Claims20
An apparatus comprising:
- a pump cylinder rotatable about a first end, the pump cylinder including a second end adjacent a lever, the first end opposite the second end;
- a pump rod operatively coupled to the pump cylinder to move relative to the pump cylinder in response to movement of the lever;
- and
- a pivot pin operatively coupled to the first end of the pump cylinder to allow rotation of the pump cylinder during movement of the pump rod, wherein the pivot pin is a unitary piece configured to extend through the first end of the pump cylinder, the pivot pin including a first end in connection with a second end and a fluidic channel defined between the first end and the second end, the first end external to the pump cylinder on a first side of the pump cylinder, the second end external to the pump cylinder on a second side of the pump cylinder opposite the first side.
1 more element
An apparatus comprising:
- a pump cylinder rotatable about a first end, the pump cylinder including a second end adjacent a lever, the first end opposite the second end;
- a pump rod operatively coupled to the pump cylinder to move relative to the pump cylinder in response to movement of the lever;
- and
- a pivot pin operatively coupled to the first end of the pump cylinder to allow rotation of the pump cylinder during movement of the pump rod, wherein the pivot pin is a unitary piece configured to extend through the first end of the pump cylinder, the pivot pin including a first end in connection with a second end and a fluidic channel defined between the first end and the second end, the first end external to the pump cylinder on a first side of the pump cylinder, the second end external to the pump cylinder on a second side of the pump cylinder opposite the first side, an end of the pump rod configured to move toward the first end of the pump cylinder when the lever is operated in a first direction, the end of the pump rod configured to move toward the second end of the pump cylinder when the lever is operated in a second direction opposite the first direction, wherein fluid passes through the fluidic channel into the pump cylinder in response to the end of the pump rod moving toward the second end of the pump cylinder.
1 more element
An apparatus comprising:
- a lever rotatably mounted to a support;
- a pump cylinder rotatable about a first end of the pump cylinder, the pump cylinder including a second end adjacent the lever, the first end opposite the second end;
- a pivot pin operatively coupled to the first end of the pump cylinder, wherein the pivot pin is a unitary piece configured to extend through the first end of the pump cylinder, the pivot pin including a first end in connection with a second end and a fluidic channel defined between the first end and the second end, the first end external to the pump cylinder on a first side of the pump cylinder, the second end external to the pump cylinder on a second side of the pump cylinder opposite the first side;
- and
- a pump rod operatively coupled to the lever to move within the pump cylinder based on rotation of the lever, wherein the pump cylinder rotates about the pivot pin when the pump rod moves within the pump cylinder, an end of the pump rod configured to move toward the first end of the pump cylinder when the lever is operated in a first direction, the end of the pump rod configured to move toward the second end of the pump cylinder when the lever is operated in a second direction opposite the first direction, wherein fluid passes through the fluidic channel into the pump cylinder in response to the end of the pump rod moving toward the second end of the pump cylinder.
2 more elements
Dependencies are inferred from the claim text.