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US 9,791,079 B2Granted
Quick connector for hydraulic hose coupling
AssigneeCaterpillar Inc.
InventorsPatrick E. Considine, Jr., Carl H. Rempert
Life of this patent
Estimating the term…
Abstract
A hydraulic fluid line coupling system is disclosed. The coupling may include a female fitting, a male fitting, first and second elastomeric seals between the female fitting and male fitting, and a clamp surrounding the female fitting, male fitting, and first and second elastomeric seals.
Claims14
A hydraulic fluid line coupling system, comprising;
- a female fitting having a proximal end comprising a recess configured to circumferentially engage an outer circumference of a second fluid line, the female fitting comprising a radially inwardly directed internal shoulder;
- a male fitting received with the female fitting having a hose end comprising a recess configured to circumferentially engage an outer circumference of a first fluid line, the male fitting having a tapered rim positioned at a distal end comprising an axial groove configured to receive a face elastomeric seal, the axial groove positioned equidistant between an inner radius and an outer radius of the tapered rim, the face elastomeric seal configured to sealingly compress into the radially inwardly directed internal shoulder;
- and
- a clamp surrounding the female fitting, male fitting, a first elastomeric seal and a second elastomeric seal, wherein the clamp includes first and second clam shell halves hinged together.
1 more element
A method of sealing a hydraulic fluid line coupling, comprising:
- inserting a male fitting having a hose end comprising a recess configured to circumferentially engage an outer circumference of a first fluid line into a female fitting having a proximal end comprising a recess configured to circumferentially engage an outer circumference of a second fluid line;
- sealing the male fitting to the female fitting using first and second elastomeric rings;
- securing the male fitting to the female fitting using a clamp;
- and
- further including positioning a first clam shell half of the clamp around the male and female fitting, and then positioning a second clam shell half around the male and female fitting.
2 more elements
A machine, comprising;
- a chassis;
- an engine mounted on the chassis;
- a hydraulic fluid pump powered by the engine;
- a hydraulic cylinder in fluid communication with the hydraulic fluid pump;
- a plurality of hydraulic fluid tubes connecting the hydraulic fluid pump and the hydraulic cylinder;
- and
- a hydraulic fluid line coupling system connecting the plurality of hydraulic fluid tubes together, each hydraulic fluid line coupling system including a male fitting having a hose end comprising a recess configured to circumferentially engage an outer circumference of a first fluid line, the male fitting having a tapered rim, the tapered rim comprising an axial groove configured to receive a face elastomeric seal, the face elastomeric seal configured to sealingly compress into a radially inwardly directed internal shoulder of a female fitting, the distal end comprising a circumferential groove configured to receive a radial elastomeric seal, the radial elastomeric seal configured to sealingly compress into a sealing end of the female fitting, the female fitting having a proximal end comprising a recess configured to circumferentially engage an outer circumference of a second fluid line,
- and a hinged clamp securing the female fitting, male fitting, the face elastomeric seal, and the radial elastomeric seal together.
5 more elements
Dependencies are inferred from the claim text.