RO115965B1 - Ulei multigrad pentru ungerea motoarelor cu ardere internă - Google Patents

Ulei multigrad pentru ungerea motoarelor cu ardere internă

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Publication number
RO115965B1
RO115965B1 RO99-00494A RO9900494A RO115965B1 RO 115965 B1 RO115965 B1 RO 115965B1 RO 9900494 A RO9900494 A RO 9900494A RO 115965 B1 RO115965 B1 RO 115965B1
Authority
RO
Romania
Prior art keywords
oil
greasing
internal combustion
combustion engines
zinc
Prior art date
Application number
RO99-00494A
Other languages
English (en)
Inventor
Mihail Costea
Doina Chitic
Mihaela Berghian
Mimi Dorogan
Cristina Grozea
Ioan Petre
Liliana Popa
Cezar Amira
Original Assignee
Total Lubrifin S.A.
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
Application filed by Total Lubrifin S.A. filed Critical Total Lubrifin S.A.
Priority to RO99-00494A priority Critical patent/RO115965B1/ro
Publication of RO115965B1 publication Critical patent/RO115965B1/ro

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Abstract

Invenţia se referă la un ulei multigrad pentru ungerea motoarelor cu ardere internă. Uleiul conform invenţiei este constituit din 80...82,5% ulei mineral de bază parafinat, având o viscozitate de 6,5...7 cSt la temperatura de 100°C, un indice de viscozitate de minimum 95, un punct de curgere de maximum -12°C, obţinut fie prin solventare selectivă, deparafinare şi contactare cu pământ decolorant sau hidrofinare, fie prin hidrocracare şi hidrodeparafinare, 11,2...12,2% pachet multifuncţional de aditivi cu proprietăţi antioxidante, anticorosive, antiuzură, detergent-dispersante şi antispumante, de tip amestec de alchilditrofosfat de zinc, sulfonat de calciu, sulfonat de magneziu şi succinimidă, având conţinut de 0,080...0,13% zinc, 0,070...0,12% fosfor, 0,25...0,3% calciu, 0,05...0,07% magneziu şi 0,03...0,06% azot, precum şi 7,0...8% aditiv ameliorator al indicelui de viscozitate cu proprietăţi suplimentare depresante, de tip polimetacetat sau poliolefină, procentele fiind exprimate în greutate.
RO99-00494A 1999-04-29 1999-04-29 Ulei multigrad pentru ungerea motoarelor cu ardere internă RO115965B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO99-00494A RO115965B1 (ro) 1999-04-29 1999-04-29 Ulei multigrad pentru ungerea motoarelor cu ardere internă

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO99-00494A RO115965B1 (ro) 1999-04-29 1999-04-29 Ulei multigrad pentru ungerea motoarelor cu ardere internă

Publications (1)

Publication Number Publication Date
RO115965B1 true RO115965B1 (ro) 2000-08-30

Family

ID=64358171

Family Applications (1)

Application Number Title Priority Date Filing Date
RO99-00494A RO115965B1 (ro) 1999-04-29 1999-04-29 Ulei multigrad pentru ungerea motoarelor cu ardere internă

Country Status (1)

Country Link
RO (1) RO115965B1 (ro)

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