BR9801664A - Bomba de engrenagens helicoidais - Google Patents

Bomba de engrenagens helicoidais

Info

Publication number
BR9801664A
BR9801664A BR9801664-4A BR9801664A BR9801664A BR 9801664 A BR9801664 A BR 9801664A BR 9801664 A BR9801664 A BR 9801664A BR 9801664 A BR9801664 A BR 9801664A
Authority
BR
Brazil
Prior art keywords
stator
rotor
gear pump
helical gear
gear
Prior art date
Application number
BR9801664-4A
Other languages
English (en)
Inventor
Jean Paul Papin
Original Assignee
Pcm Pompes
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 FR9614227A external-priority patent/FR2756018B1/fr
Application filed by Pcm Pompes filed Critical Pcm Pompes
Priority to BR9801664-4A priority Critical patent/BR9801664A/pt
Publication of BR9801664A publication Critical patent/BR9801664A/pt

Links

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  • Rotary Pumps (AREA)

Abstract

Patente de Invenção:<B>"BOMBA DE ENGRENAGENS HELICOIDAIS"<D>. Bomba de engrenagens, ou bombas Moineau, que possui duas engrenagens helicoidais internas uma à outra, a engrenagem helicoidal interna que é rotativa (rotor) tendo um dente a menos que a engrenagem helicoidal externa que é fixa (estator), caracterizada pelo fato de que o rotor e o estator são feitos de materiais respectivos que possuem coeficientes de dilatação térmica respectivos que levam a dilatações respectivas do rotor e do estator tais para que uma folga aproximadamente constante seja mantida entre o rotor e o estator em uma faixa de temperatura ambiente compreendida entre cerca de 15°C e cerca de 300°C.
BR9801664-4A 1996-11-21 1998-05-20 Bomba de engrenagens helicoidais BR9801664A (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR9801664-4A BR9801664A (pt) 1996-11-21 1998-05-20 Bomba de engrenagens helicoidais

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9614227A FR2756018B1 (fr) 1996-11-21 1996-11-21 Pompe a engrenages helicoidaux
BR9801664-4A BR9801664A (pt) 1996-11-21 1998-05-20 Bomba de engrenagens helicoidais

Publications (1)

Publication Number Publication Date
BR9801664A true BR9801664A (pt) 1999-12-14

Family

ID=30771570

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9801664-4A BR9801664A (pt) 1996-11-21 1998-05-20 Bomba de engrenagens helicoidais

Country Status (1)

Country Link
BR (1) BR9801664A (pt)

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
ME Request for revocation

Owner name: NETZSCH DO BRASIL INDUSTRIA E COMERCIO LTDA. - PET

B25D Requested change of name of applicant approved
B25A Requested transfer of rights approved
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)