Radiator valve
AssigneeDanfoss A/S
InventorsHans Jorgensen, Iver S. Bertelsen, Hans-Erik K. Jensen
Life of this patent
Estimating the term…
Abstract
The invention relates to a radiator valve assembly which includes the well known adjustable throttle valve and seat therefor in combination with an insert in the downstream side thereof which has a fixed throttle passage extending axially thereof. The throttle passage has a cross section which converges on the inlet side thereof and is sufficiently long to minimize the developing of turbulence in the flow stream.
Claims15
A radiator valve assembly, comprising, inlet and outlet pipe sections, adjustable throttle valve and valve seat means between said sections, throttle insert means inserted into said outlet pipe section from the free end thereof, said insert means having a cylindrical external surface in sealing and retaining engagement with the internal surface of said outlet pipe section, said insert means having transversely extending wall means, said insert means forming elongated fixed throttle passage means extending through said wall means through which at least substantially all the fluid flow through the valve seat passes, said fixed throttle passage means having a converging cross section at the inlet side thereof and a remaining cross section which then remains substantially constant over the length thereof, said remaining cross section having a length greater than the transverse width thereof, the length of said remaining cross section being several times greater than the corresponding dimension of said wall means.
A radiator valve assembly, comprising, inlet and outlet pipe sections, adjustable throttle valve and valve seat means between said sections, throttle insert means inserted into said outlet pipe section from the free end thereof, said insert means having a cylindrical external surface in sealing and retaining engagement with the internal surface of said outlet pipe section, and transversely extending wall means, said insert means forming elongated fixed throttle passage means extending through said wall means, said fixed throttle passage means having a converging cross section at the inlet side thereof and a remaining cross section which then remains substantially constant over the length thereof and has a length greater than the transverse width thereof, the length of said remaining cross section being 3 to 5 times the dimension of said transverse width, said passage means including an elongated first tubular portion having an elongated passageway extending therethrough that includes said converging cross section and remaining cross section, said wall means including a divider wall that is joined to said first tubular portion to extend radially outwardly thereof and that in the direction of elongation of the first tubular portion is of a dimension that is several times smaller than the length of said remaining cross section and said insert means including a second tubular portion that has said cylindrical external surface and is of a length greater than the corresponding dimension of said wall.
A radiator valve assembly, comprising inlet and outlet pipe sections, adjustable throttle valve and valve seat means between said sections, throttle insert means in said outlet section, said insert means including a first tubular portion forming an elongated fixed throttle passage means through which at least substantially all of the fluid passes, a divider wall joined to said first tubular portion to extend radially outwardly thereof and a second tubular portion having an external surface in sealing and retaining engagement with the internal surface of said outlet pipe section, said second tubular portion being joined to said wall such that the wall extends radially inwardly thereof and being of a length greater than the corresponding dimension of said wall, said fixed throttle passage means having a converging cross section at the inlet side thereof and a remaining cross section which then remains substantially constant over the length thereof, said remaining cross section having a length greater than the transverse width thereof and several times greater than the corresponding dimension of the wall.
Dependencies are inferred from the claim text.