FR2492467A2 - Double rotor wind motor - has auxiliary large diameter rotor to supply extra air to driven rotor - Google Patents

Double rotor wind motor - has auxiliary large diameter rotor to supply extra air to driven rotor Download PDF

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Publication number
FR2492467A2
FR2492467A2 FR8022435A FR8022435A FR2492467A2 FR 2492467 A2 FR2492467 A2 FR 2492467A2 FR 8022435 A FR8022435 A FR 8022435A FR 8022435 A FR8022435 A FR 8022435A FR 2492467 A2 FR2492467 A2 FR 2492467A2
Authority
FR
France
Prior art keywords
rotor
propeller
wind
double
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR8022435A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CAMBON LOUIS
Original Assignee
CAMBON LOUIS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8019388A external-priority patent/FR2489891A1/en
Application filed by CAMBON LOUIS filed Critical CAMBON LOUIS
Priority to FR8022435A priority Critical patent/FR2492467A2/en
Publication of FR2492467A2 publication Critical patent/FR2492467A2/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

The twin drive wind motor has an auxiliary induction rotor to pass extra air to the driven rotor. The motor acts as a weather vane, with the wind vector determining the position of the motor axis and its intensity the speed of the driven rotor. A viscous brake can control the rotor speed. In very high winds, the rotor receives only a small part of the force by moving to a safe orientation. The auxiliary rotor has a larger diameter than the main rotor.

Description

DESCRIPTION
En complément au moteur éolien à double flux déjà déposé,nous proposons les additifs décrits ci-dessous
1- Moteur éolien double flux à hélice aspirante:
Nous rappelons que dans le moteur éolien à double flux précé- gemment déposé, le flux traversant l'hélice était aspiré, après celle-ci, par le flux complémentaire non ralenti par l'hélice.DESCRIPTION
In addition to the dual flux wind engine already deposited, we offer the additives described below
1- Double-flow wind motor with suction propeller:
We recall that in the wind turbine engine with double flow previously deposited, the flow crossing the propeller was sucked, after this one, by the complementary flow not slowed down by the propeller.

Ici, nous ajoutons une hélice aspirante que l'on place après l'hélice motrice et qui, actionnée par le flux complémentaire, a pour rôle d'aspirer le flux principal ayant traversé l'hélice mo- trice (voir shéma). Here, we add a suction propeller which is placed after the driving propeller and which, actuated by the complementary flow, has the role of sucking the main flow having crossed the propeller (see diagram).

Nous remarquons que l'hélice aspirante, plus grande que l'hé- lice principale, est non asservie; se vitesse de rotation est bien moindre que celle de l'hélice motrice dont elle augmente la puissance. We notice that the suction propeller, larger than the main propeller, is not controlled; the speed of rotation is much less than that of the propeller, whose power it increases.

2- Sécurité dynamique pour moteur éolien :
Le problème de la limitation de le rotation d'une éolienne à axe horizontal par vent très fort est résolu ici par un système pendulaire amorti par frottement de type visqueux( à courants de
Foucault par exemple)(voir shéma).Quand le vent devient fort, le système prend une inclinaison qui éloigne l'hélice de le normale au vent, la partie avant du support horizontal déviant, en outre, une partie du vent vefs le bas.Quand le vent retourne à une valeur normale, le système pendulaire ramène l'hélice vers une position normale au vent où l'efficacité est maximum.On notera que ce système, en plus de son but de sécurité dynamique, joue un rôle de régulateur de flux dans le cas de vent irrégulier en vitesse. 2- Dynamic safety for wind power:
The problem of limiting the rotation of a wind turbine with a horizontal axis in very strong wind is solved here by a pendular system damped by friction of viscous type (with currents of
Foucault for example) (see diagram) .When the wind becomes strong, the system takes an inclination which distances the propeller from the normal to the wind, the front part of the horizontal support deviating, in addition, part of the wind against the bottom. When the wind returns to a normal value, the pendulum system returns the propeller to a normal position in the wind where the efficiency is maximum. It will be noted that this system, in addition to its dynamic safety goal, plays a role of regulator of flow in the case of irregular wind speed.

Claims (2)

R7Vm1iDICATIONS  R7Vm1iDICATIONS motrice. motor. ration, l'efficacité du flux principal passant par l'hélice ration, the efficiency of the main flow passing through the propeller une hélice aspirante dont le rôle est d'augmenter, par aspi a suction propeller whose role is to increase, by aspi caractérisé par le fait que le flux complémentaire actionne characterized by the fact that the complementary flow activates du brevet principal, the main patent, 1- Système de moteur éolien à double flux selon revendications 1- Double flow wind motor system according to claims 2- Système de moteur éolien à double flux selon revendication 1,2- Double-flow wind motor system according to claim 1, caractérisé par le fait que le système forme un pendule, characterized by the fact that the system forms a pendulum, l'intensité du vent déterminant la position de ce pendule et the intensity of the wind determining the position of this pendulum and régulant ainsi la vitesse de l'hélice motrice.Un freinage de thus regulating the speed of the propeller. type visqueux permet un meilleur fonctionnement de ce régula viscous type allows a better functioning of this regula teur dynamique.Par vent très fort, l'hélice ne reçoit qu'une dynamic, very strong wind, the propeller receives only one faible partie du flux incident et se trouve donc en position small part of the incident flow and is therefore in position de sécurité.  of security.
FR8022435A 1980-09-08 1980-10-20 Double rotor wind motor - has auxiliary large diameter rotor to supply extra air to driven rotor Pending FR2492467A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8022435A FR2492467A2 (en) 1980-09-08 1980-10-20 Double rotor wind motor - has auxiliary large diameter rotor to supply extra air to driven rotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8019388A FR2489891A1 (en) 1980-09-08 1980-09-08 Horizontal axis wind vane - has inner cylinder surrounding rotor and outer cylinder providing auxiliary air flow to assist extraction of air and baffle noise
FR8022435A FR2492467A2 (en) 1980-09-08 1980-10-20 Double rotor wind motor - has auxiliary large diameter rotor to supply extra air to driven rotor

Publications (1)

Publication Number Publication Date
FR2492467A2 true FR2492467A2 (en) 1982-04-23

Family

ID=26221974

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8022435A Pending FR2492467A2 (en) 1980-09-08 1980-10-20 Double rotor wind motor - has auxiliary large diameter rotor to supply extra air to driven rotor

Country Status (1)

Country Link
FR (1) FR2492467A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781522A (en) * 1987-01-30 1988-11-01 Wolfram Norman E Turbomill apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781522A (en) * 1987-01-30 1988-11-01 Wolfram Norman E Turbomill apparatus and method

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