Patent ID: 8733402

Claim:
A pressure control valve, comprising: a valve housing having a first opening and a second opening, a valve member being arranged in the valve housing with an adjustable stroke configured to control a cross section through which gas can pass, the cross section connecting the first opening to the second opening, wherein the valve member has a support body with a first membrane and a second membrane, wherein the first membrane in the valve housing separates a first chamber from a second chamber, the first chamber communicating with the first opening and the second opening in a gas-tight manner, the second chamber communicating with a third opening of the valve housing, wherein the second membrane in the valve housing separates the second chamber in a gas-tight manner from a third chamber, the third chamber communicating through the valve member with the first chamber, wherein the first membrane and the second membrane are integrally formed on a single-piece membrane body which is injection molded onto the support body, wherein the first membrane has a first seal which interacts with the valve housing and the second membrane has a second seal which interacts with the valve housing, and further wherein the single-piece membrane body delimits the second chamber from the first seal to the second seal without interruptions, such that the single-piece membrane body has a continuous surface that extends from the first seal to the second seal.