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Two-lobe rotary machine

A technology of rotating machines and cams, used in rotary piston machines, rotary piston engines, rotary or oscillating piston engines, etc., to solve problems such as force concentration

Inactive Publication Date: 2009-03-25
约瑟夫·A·斯巴若尼斯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the centrifugal force from the eccentric motion of the rotor is transmitted between the guide and the rectangular portion of the shaft in an alternating fashion, thereby causing force concentrations at various contact points

Method used

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Examples

Experimental program
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Embodiment Construction

[0040] The present invention allows a stronger shaft to be used in the rotor described in U.S. Patent No. 5,393,208 by the applicant, which has a given crank length, or a shorter crank length for a given shaft strength. The implication of this is that at higher pressures, the larger shaft is better able to withstand the torsional stresses predominantly exerted on it by the rotating rotor.

[0041] An alternative improved configuration allows increasing the crank length for a rotor of a given size, which is roughly defined as the distance between the apex of the rotor and the contact point of the outer casing. The longer the crank length for a given size rotor, the torque on the shaft and the axial length of the rotor results in lower operating pressures, bearing loads and reduced losses in pressure seals. Crank length is defined as the distance between the eccentric load center and the longitudinal center of the shaft.

[0042]If the shaft is supported on both sides of the r...

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PUM

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Abstract

A rotary machine including a housing with spaced apart end walls defining a chamber. A two-lobe lenticular rotor assembly is disposed in the chamber for eccentric rotation therein. A hole passes through a central portion of the rotor assembly. Slots are cut in one end of the rotor assembly about the center of the rotor assembly. A rotor guide assembly includes generally cylindrical guideposts which extend parallel toward the slots and engage in eccentric rotation of the slots. A shaft extends through the center of the hole. In one embodiment an even number of six or more spaced slots and half that number of guideposts spaced around the shaft are used which allows for a larger sized hole and shaft. In another embodiment, four slots which are shifted toward the apices of the rotor, and two guideposts are used, which also allows for a larger sized hole and shaft.

Description

technical field [0001] The present invention relates generally to a rotating machine and, more particularly, to a two-lobed rotating machine having fixed guides for positioning the apex of the rotor while rotating a shaft, or being driven by a rotating shaft. Background technique [0002] The concept of a rotating machine (eg, a pump or an engine) operating as a positive displacement machine dates back hundreds of years. For example, US Patent No. 1,340,625 describes a rotary machine having a lenticular rotor with two lobes provided with two slots. One of the lobes coincides with the apex of the rotor, while the other is perpendicular to the apex of the rotor and has a center through the center of the rotor, which engage stationary guides mounted on the machine casing. Slotted rotor construction requires the machine's rotating shaft to be fully supported from side to side. However, for high torque and high speed rotating machines, the considerable stresses necessitate that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01C1/02F01C1/063F03C2/00F03C4/00F04C18/00F04C2/00F16N13/20F01C1/22F01C17/04
CPCF01C1/22F01C17/04
Inventor 约瑟夫·A·斯巴若尼斯
Owner 约瑟夫·A·斯巴若尼斯