Gas meter
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsMasaki Sugiyama, Hideaki Morihana, Hidetomo Nagahara, Yuuji Nakabayashi, Hideki Kinoshita
Life of this patent
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Abstract
A gas meter includes a meter entrance that allows a fluid to flow in, a meter exit that allows the fluid to flow out, and a flow rate measurer that measures a flow rate of the fluid. In addition, the flow rate measurer includes a plurality of flow rate measuring units having the same shape and composed of a flow passage portion with a rectangular cross section shape on the outer side and a sensor portion disposed on one face of the flow passage portion. The plurality of flow rate measuring units are integrally configured by bonding faces having no sensor portion so as to serve as bonding faces of the flow rate measuring units.
Claims6
A gas meter comprising:
- a meter entrance configured to allow a fluid to flow in to the gas meter;
- a meter exit that allows the fluid to flow out from the gas meter;
- a flow rate measurer configured to measure a flow rate of the fluid through the gas meter;
- and
- a connecting member connecting the meter exit and the flow rate measurer, an outlet end of the flow rate measurer being inserted into the connecting member so that the flow rate measurer is held by the connecting member,
- wherein the flow rate measurer includes a plurality of flow rate measuring units of a same shape, each of the flow rate measuring units comprising a flow passage portion having a rectangular cross sectional shape with four longitudinal faces, and a sensor portion disposed on one of the longitudinal faces of the flow passage portion,
- wherein the longitudinal faces of the flow passage portion of each of the flow rate measuring units include a bonding face having no sensor portion thereon, all of the plurality of flow rate measuring units being arranged such that bonding faces of the flow rate measuring units are integrally bonded together,
- wherein each of the flow rate measuring units has a groove on an entire periphery of the flow rate measuring unit, the groove including a first groove portion formed on the bonding face being bonded together and a second groove portion formed on faces other than the bonding face, and
- wherein a first seal member is arranged in the first groove portion to form a seal between adjoining pairs of flow rate measuring units, and a second seal member is arranged in the second groove portion to form a seal between the flow rate measurer and the connecting member holding the flow rate measurer.
Dependencies are inferred from the claim text.