| 摘要 |
A pressure measurement device has: a first chamber coupled to at least one fluid utilization unit, a second chamber coupled to a vacuum source, a seat with a passage for the fluid between the first and the second chamber, a plug for allowing or blocking the fluid flow through the passage, a retaining member for retaining the plug against the seat, a pressure sensor, and a measurement cavity coupled to the first chamber. The retaining member has a channel arranged to couple the first chamber and the measurement cavity. |
| 主权项 |
1. A pressure measurement device, for measuring pressures of a fluid flowing in a motor vehicle, the pressure measurement device having at least:
a first chamber configured for the flow of the fluid, the first chamber being intended to be coupled to at least one fluid utilization unit, a second chamber configured for the flow of the fluid, the second chamber being intended to be coupled to a vacuum source, a seat having at least one passage arranged such that the fluid can flow between the first chamber and the second chamber, a plug configured to have i) an opening position, in which the plug is away from the seat such that the fluid can flow through the passage, and ii) a closing position, in which the plug is pressed against the seat so as to block the fluid flow through the passage, a retaining member configured to retain the plug against the seat, a pressure sensor for transmitting signals representative of the pressures of the fluid, and a measurement cavity coupled to the first chamber, the pressure sensor being arranged to measure the pressure in the measurement cavity, the pressure measurement device being configured such that the retaining member has at least one channel arranged to couple the first chamber and the measurement cavity. |
