| 摘要 |
1, 069, 486. Dynamometers; viscosimeters. DEZURIK CORPORATION. Aug. 19, 1964 [Aug.19, 1963], No.33939/64. Headings G1S and G1W. A torque measuring device 20 which is used to measure the torsional reaction of a fluid P comprises a shaft 29 connected to a rotor 22b of a motor and journalled in a stator housing 22, the stator housing 22 being fixed to the stator 22a and being so rotatably mounted on a fluid containing vessel 21 by flexure elements 30, 31 of known torsional characteristics that the angular deflection of the stator with respect to the vessel due to the rotation of the shaft 29 in the fluid provides a value for the torsional resistance of the fluid P. The shaft 29 which is provided with fluid sensing paddles 26 is surrounded by a sealing unit 25 which is mounted on the stator housing and which comprises two seal elements (58, 59) Fig. 3 (not shown) between which water is circulated. The shaft may be formed in two sections suitably coupled by a gearing mechanism. A sensing device 23 which may operate electrically, pneumatically or hydraulically may be mounted on the casing 32 of the device 20, in which case the device 32 is actuated by an arm attached to the stator in accordance with the deflection of the stator. The flexure elements 30 comprises a rod of medium carbon, resulphurized alloy steel and of generally "cross" shaped cross-section mounted between the casing of the device and a hub (41) of the stator whereas the flexure element 31 comprises an annulus of resilient elastomer material firmly sandwiched between two hubs (71 and 72) having toothed inner concave surfaces Fig. 6 (not shown) to form a static seal (70) between the seal unit 25 and the base portion (86) of the casing. |
