| 摘要 |
<p>1,058,394. Regulating fluid flow. R.E. BOWLES. May 1, 1964 [May 31, 1963], No.18107/64. Heading G3H. A pure fluid comparator comprises a pair of inlet nozzles 14a, 15a whose axes lie at angles of less than 90 degrees to a centre line C-D, and a pair of output ducts 25, 26 separated by a divider 22. Vents 33, 34 equalize the pressures in the two output ducts which have walls 20, 21 set back from the nozzles 14a, 15a to prevent boundary layer effects in the fluid, liquid or gaseous, flowing to the output ducts. Alternatively, the vents 33, 34 may be omitted and the walls 20, 21 disposed sufficiently close to the interacting fluid streams to cause boundary layer effect to operate, in which case the outflow tends to be concentrated in one or other of the output ducts rather than to be distributed in proportion to the pressures in the two inlet nozzles 14a, 15a. One of the inlet nozzles may be supplied with a variable pressure for. comparison with a reference pressure fed to the other nozzle. The device may be given a bias towards one or other outlet duct by altering the angles of the inlet nozzles or shifting the divider 22.</p> |
