公开(公告)号：US3788142A

公开(公告)日：1974-01-29

申请号：US3788142D

申请日：1972-06-07

Applicant: SAAB SCANIA AB

Inventor： GORANSSON N

IPC: G01F1/12

CPC classification number: G01F1/12 ,  G01F1/125

Abstract: A flow meter comprises a screw turbine having its axis parallel to stream flow, to be rotated thereby. The turbine carries axially oppositely facing clutch members and is free for limited axial movement. When rotating too fast for stream flow, it moves upstream, engaging one clutch member against a cooperating fixed clutch element, and is thereby decelerated. Rotating too slowly, its downstream drift engages the other clutch member against a second cooperating clutch element which is motor driven to rotate faster than highest expectable turbine speed, for acceleration of turbine rotation.

Abstract translation: 流量计包括具有平行于流动流动的轴线的螺旋涡轮机，由此旋转。 涡轮机承载轴向相对的离合器构件，并且是有限的轴向运动的。 当对于流动旋转得太快时，其向上游移动，使一个离合器构件抵靠协作的固定式离合器元件接合，从而减速。 旋转太慢，其下游漂移与另一离合器构件抵靠第二配合离合器元件接合，该第二配合离合器元件被电动机驱动以比最高可预期的涡轮转速更快地转动，用于加速涡轮机转动。