Measuring device provided with rotary pistons

Details Measuring device provided with rotary pistons Measuring device provided with rotary pistons

1997-11-25

1999-12-07

Patel, Harshad

Measuring and testing

Volume or rate of flow

Expansible chamber

73202, G01F 304, G01F 500

Patent

active

059964057

ABSTRACT:
Measuring device for measuring the flow rate of a gas flow or liquid flow by means of a rotary piston device consisting of two rotary pistons which are placed in a pipe section and are mounted in such a way that they rotate about a rotary shaft, which rotary pistons are placed relative to each other and relative to the pipe section in such a way that by interaction with each other they shut off the pipe section. During the rotation the two rotary pistons always remain in contact with the wall of the pipe section at one side and with each other at the other side, a quantity of gas or liquid being allowed through every turn. The measuring device is characterized in that it consists of a number of parallel branches, with a rotary piston device accommodated in each branch, the rotary piston devices being synchronized with each other by means of synchronization means in such a way that the flow rate is approximately constant.

REFERENCES:
patent: 3748903 (1973-07-01), Irie et al.
patent: 4612804 (1986-09-01), Colonnello
patent: 4916949 (1990-04-01), Lofink
patent: 5090240 (1992-02-01), Baker et al.
patent: 5150612 (1992-09-01), Lew
F. Herning: "Gedanken Zue Moglichen Weiterentwickklung Hochdruckgasmessung Aus Der Sict Der Ferngasversorgung", Feb. 17, 1967, pp. 157-162.

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