Claims
- 1. In a multi-purpose flow apparatus of the type which operates on the principle of volumetric displacement, the improvement comprising a casing having an inlet and an outlet disposed along a given line, an internally helicoidal chamber member rotatable about its center of gravity parallel to the given line and having z.sub.k thread starts: an externally helicoidal spindle, and means mounting the spindle for rotation about an axis disposed at its center of gravity and parallel to the given line and comprising bearings and a fluid fluid flow guide cone for each bearing at the inlet and the outlet, wherein the spindle has z.sub.o =z.sub.k+1 thread starts, the thread division thereof is z.sub.o /z.sub.k times pitch of the chamber member and the angular velocity of rotation of the spindle is z.sub.k /z.sub.o times that of the chamber member.
- 2. The apparatus according to claim 1, wherein the internal section of the transverse profile of the chamber member is a regular single arch hooked epicycloid without the inner arc, and the internal section of the external envelope of the surface arising from the relative movement of the spindle is a regular single arch hooked epicycloid without the internal arc.
- 3. The apparatus according to claim 1, wherein the internal section of the transverse profile of the chamber member is a spiral epicycloid and the internal section of the external envelope of the surface arising from the relative movement of the spindle is a spiral epicycloid.
- 4. The apparatus according to claim 1, wherein the chamber member has a constant pitch.
- 5. The apparatus according to claim 1, wherein the chamber member has a variable pitch.
Priority Claims (1)
Number |
Date |
Country |
Kind |
OA 583 |
Dec 1977 |
HUX |
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Parent Case Info
This is a continuation of application Ser. No. 350,050, filed Feb. 18, 1982, which is a continuation of Ser. No. 185,131, filed Sept. 8, 1980, which is a continuation of Ser. No. 970,321, filed Dec. 18, 1978, all abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
85331 |
Jan 1936 |
SEX |
427475 |
Apr 1935 |
GBX |
Continuations (3)
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Number |
Date |
Country |
Parent |
350050 |
Feb 1982 |
|
Parent |
185131 |
Sep 1980 |
|
Parent |
970321 |
Dec 1978 |
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