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US 7,478,762 B2Granted
Thermal by-pass valve
OwnerRichard A. Conlininventor
Life of this patent
Estimating the term…
Abstract
A thermal by-pass valve for fluids includes a sleeve having an inlet opening, and two outlet openings. One of the outlet openings functions as a by-pass opening. A bi-metallic metal coil is enclosed within the sleeve. The coil has one end securely attached to a cap, which cap incorporates an inlet for a fluid. The cap is attached to the inlet opening of the sleeve. The bi-metallic coil is designed to rotate the sleeve when the temperature of the fluid exceeds or drops below a designated threshold temperature.
Claims12
A thermal by-pass valve, comprising:
- a sleeve, said sleeve having an open end, a closed end and a wall defining a volume therein;
- a first fluid flow opening formed in said wall;
- a second fluid flow opening formed in said closed end;
- a bi-metal coil disposed in said volume;
- and
- a mesh filter positioned inside said coil.
3 more elements
A thermal by-pass valve, comprising:
- a sleeve, said sleeve having an open end, a closed end and a wall defining a volume therein;
- a first fluid flow opening formed in said wall;
- a second fluid flow opening formed in said closed end;
- a bi-metal coil disposed in said volume, said bi-metal coil having a proximate end and a distal end;
- a mesh filter positioned inside said coil:
- a cap member secured to said sleeve and closing said open end of said sleeve, wherein said proximate end of said bi-metal coil is anchored to said cap member;
- and
- a fluid flow passageway opening through said cap member.
5 more elements
A thermal by-pass valve assembly comprising:
- a valve housing, said housing having a first outlet for normal flow of a working fluid and a second outlet for by-pass flow of said working fluid;
- a sleeve mounted in said housing, said sleeve rotatable from a first positioned to a second position, said sleeve having an open end, a closed end and a wall defining a volume therein;
- a first fluid flow opening formed in said wall, said first fluid flow opening being in registration with said second outlet when said sleeve is in said first position;
- a second fluid flow opening formed in said closed end said second fluid flow opening being in registration with said first outlet when said sleeve is in said second position;
- and
- a bi-metal coil disposed in said volume.
3 more elements
Dependencies are inferred from the claim text.