Measuring and testing – Volume or rate of flow – Proportional
Patent
1989-06-19
1991-07-09
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Proportional
1375991, 13762532, G01F 500
Patent
active
050294709
ABSTRACT:
The invention pertains to a device for measuring and regulating the mass of a flow of gases by means of a bypass system with a sensor capillary element, a regulating valve, and an electronic component for elucidating and evaluating measurements received from the sensor element for controlling the regulating valve, and with a basic body of metal, which has a gas flow-through conduit connected to a threaded inlet and a threaded outlet, while two channels leading to and from the sensor element branch off from the gas flow-through conduit. The regulating valve has access to the gas flow-through conduit, and a bypass unit is positioned between the sensor channels and the entrance for the regulating valve, characterized by the facts that the gas flow-through conduit (6) is traversed by a blind bypass bore (7), while the sensor channels (13 and 14) open, in the vicinity of the inlet aperture (10) of the gas flow-through conduit (6), into the bypass bore (7) and, in the vicinity of the outlet aperture (11) of the gas flow-through conduit (6), out of the bypass bore (7), and that a bypass cylinder with sliding seat is located in the blind bypass bore (7), while this sliding seat is designed so that a free space, preferably a fissure, through which the gas can flow, remains between the jacket surface of the bypass cylinder and the inner surface of the blind bypass bore (7).
REFERENCES:
patent: 3013432 (1961-12-01), O'Keeffe
patent: 3581996 (1971-06-01), Boyer
patent: 4450718 (1984-05-01), Harteminit
patent: 4524616 (1985-06-01), Drelel
Goldstein Herbert
Wigha Elektronische Messtechnik GmbH
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