Patent ID: 11931499
Assignee: NIKKISO COMPANY LIMITED
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A

Claim 0:
1. A pressure detector comprising:
a case connectable to a flow route for liquid and attachable to a predetermined attaching surface, the case comprising:
a liquid-phase-portion case defining a liquid-phase portion and
a gas-phase-portion case defining a gas-phase portion; and

a membrane member attached inside and between the liquid-phase-portion case and the gas-phase-portion case when the liquid-phase-portion case and the gas-phase-portion case are mated together so that the liquid-phase portion to be supplied with the liquid in the flow route and the gas-phase portion to be supplied with gas are separated from each other by the membrane member, the membrane member being displaceable in accordance with a pressure of the liquid supplied to the liquid-phase portion,
the pressure detector detecting the pressure of the liquid in the flow route by detecting a pressure in the gas-phase portion, the pressure detector comprising:
an inlet port including a connecting portion connectable to the flow route for the liquid, and a flow-route portion through which the liquid flows into an inlet opening of the liquid-phase portion, wherein the inlet port extends substantially parallel to an attaching plane defined for the membrane member; and
an outlet port including a connecting portion connectable to the flow route for the liquid, and a flow-route portion through which the liquid having flowed into the liquid-phase portion is discharged from an outlet opening, wherein the outlet port extends at a predetermined angle with respect to the attaching plane defined for the membrane member,
wherein the outlet opening is positioned in a part of the liquid-phase portion that includes a highest point in a vertical direction in a state where the case is attached to the predetermined attaching surface, and the outlet port extends obliquely upward from the outlet opening.