Gas meter
AssigneeFlonic
InventorsMichel Carte, Michel Benadassi, Michel Dumay
Life of this patent
Estimating the term…
Abstract
A four chamber gas meter comprises a distributor cover and a rotary distributor sliding on the distributor cover. The distributor is driven by a crank which is kinematically connected to the bellows of the gas meter. The hub of the crank is engaged with clearance in a sleeve of the distributor so that the tilting torque applied to the crank is not applied to the distributor itself.
Claims13
Gas meter with a measurement unit comprising:
- a case made up of a central block, a distribution cover defining a distribution surface equipped with four distribution orifices fixed to said central block and two side covers also fixed to said central block to define two internal compartments;
- two deformable bellows each mounted in one of said compartments to separate each compartment into two measurement chambers, said central block moreover forming all four internal passages to connect each distribution orifice to one of said chambers;
- a distributor mounted rotatably on said distribution cover and comprising a cylindrical sleeve placed perpendicular to said distribution surface along the axis of rotation of said distributor;
- and
- transmission means comprising a part forming a crank including a hub engaged with clearance in said sleeve and mounted pivotably in relation to said case, and a first pivot shaft parallel to said hub but offset in relation to it, means for connecting said bellows kinematically to said part forming a crank comprising at least two lever assemblies, one end of said lever assemblies being mounted on said first pivot shaft, and means for obtaining the joint rotation of said crank part and said distributor.
Gas meter with a measurement unit including a case forming two measurement compartments, each compartment being separated by a deformable bellow into two chambers and a distribution surface in which are provided four orifices, each orifice being connected to one of said chambers by internal passages, a distributor mounted rotatably on said distribution surface and comprising a cylindrical sleeve placed perpendicular to said distribution surface along the axis of rotation of the distributor, and transmission means comprising a part forming a crank having a hub engaged with clearance in said sleeve and mounted pivotably in relation to said case and a first pivot shaft parallel to said hub but offset in relation to it, means for connecting said bellows kinematically to said crank part, one end of the lever assemblies being mounted on said first pivot shaft, and means for obtaining the joint rotation of said crank part and said distributor.
Gas meter with a measuring unit comprising:
- a case including an integral central block, a distribution cover provided with four distribution orifices and fixed to said central block, and two side covers also fixed to said central block to define two internal compartments;
- two deformable bellows each mounted in one of said compartments to separate each compartment into two chambers, said central block defining four internal passages for connecting each distribution orifice to one of said chambers;
- a distribution assembly mounted rotatably on said distribution cover and outside said case;
- and
- transmission means for kinematically connecting said deformable bellows to said distribution assembly said transmission means including two shafts, each shaft having a first end inside said case and a second end outside said case.
Dependencies are inferred from the claim text.