Patent ID: 9163741
Filing Date: 2015-10-20
Classification: F16K,F23K,F23N,Y10T

Abstract:
1. A gas regulating unit having a valve basic body forming at least a gas inlet chamber and a gas outlet chamber, having a safety valve and having a main gas valve, wherein the safety valve and the main gas valve either allow or shut off a gas flow from the gas inlet chamber into the gas outlet chamber, the valve basic body comprises at least three parts, including at least one single part plastic core, which defines at least part of the gas inlet chamber and the gas outlet chamber, and at least two metallic shells, wherein a first metallic shell encloses the plastic core, at least in sections, on a top side and wherein a second metallic shell encloses the plastic core, at least in sections, on a bottom side, wherein the first metallic shell and second metallic shell are in contact with the plastic shell, and wherein between one of these metallic shells and the plastic core there is positioned at least one diaphragm, which for the safety valve and/or the main gas valve respectively, delimits a drive chamber, in which a servo pressure prevails; wherein the plastic core defines, in the region of the gas inlet chamber, a connecting socket that protrudes from an outer side wall of a main body of the plastic core, with the extent of the connecting socket defined by an outer socket wall that extends around a perimeter of the connecting socket, the outer socket wall facing one or more of the first metallic shell and the second metallic shell enclosing the plastic core; wherein the first metallic shell and the second metallic shell include connecting socket portions that collectively extend around the perimeter of the outer socket wall of the connecting socket to provide support to the connecting socket; wherein the connecting socket portion of the first metallic shell at least partially defines a connecting element that engages a corresponding connecting element of the connecting socket portion of the second metallic shell at a position; and wherein the connecting socket protrudes from the outer side wall of the main body of the plastic core sufficiently far to extend past the connecting elements of the first metallic shell and the second metallic shell.