FR893199A - Perfectionnement aux tubes à ailettes - Google Patents

Perfectionnement aux tubes à ailettes

Info

Publication number
FR893199A
FR893199A FR893199DA FR893199A FR 893199 A FR893199 A FR 893199A FR 893199D A FR893199D A FR 893199DA FR 893199 A FR893199 A FR 893199A
Authority
FR
France
Prior art keywords
improvement
finned tubes
finned
tubes
tubes improvement
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.)
Expired
Application number
Other languages
English (en)
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.)
VENTILATION IND ET MINIERE
Original Assignee
VENTILATION IND ET MINIERE
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 VENTILATION IND ET MINIERE filed Critical VENTILATION IND ET MINIERE
Application granted granted Critical
Publication of FR893199A publication Critical patent/FR893199A/fr
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR893199D 1942-12-17 1942-12-17 Perfectionnement aux tubes à ailettes Expired FR893199A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR893199T 1942-12-17

Publications (1)

Publication Number Publication Date
FR893199A true FR893199A (fr) 1944-06-01

Family

ID=9389900

Family Applications (1)

Application Number Title Priority Date Filing Date
FR893199D Expired FR893199A (fr) 1942-12-17 1942-12-17 Perfectionnement aux tubes à ailettes

Country Status (1)

Country Link
FR (1) FR893199A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501846A1 (fr) * 1981-03-13 1982-09-17 Merlin Gabriel Tube pour echangeur thermique et application de ce tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501846A1 (fr) * 1981-03-13 1982-09-17 Merlin Gabriel Tube pour echangeur thermique et application de ce tube

Similar Documents

Publication Publication Date Title
FR943074A (fr) Perfectionnements aux tubes à décharge
FR948610A (fr) Perfectionnements aux tubes à décharge
FR885456A (fr) Perfectionnements aux fermetures à coulisseau
FR940475A (fr) Perfectionnements aux tubes à rayons chi
FR942221A (fr) Perfectionnements aux tubes à rayons chi
FR942318A (fr) Perfectionnements aux tubes à rayons chi
FR893199A (fr) Perfectionnement aux tubes à ailettes
FR947097A (fr) Perfectionnements aux tubes à réactance
FR950304A (fr) Perfectionnements aux tubes à décharge
FR886110A (fr) Perfectionnements aux brosses à dents
FR879917A (fr) Clé à écrous
FR939257A (fr) Perfectionnements aux tubes à décharge électronique
FR879105A (fr) Perfectionnements apportés aux tubes à décharges électriques
FR993849A (fr) Perfectionnements aux tubes à ailettes
FR893268A (fr) Refroidisseur à tubes
FR914665A (fr) Accouplements à dents
FR977825A (fr) Perfectionnements aux chalumeaux à braser
FR55574E (fr) Clé coudée en tube
FR905657A (fr) Oscillateur à tube
FR883557A (fr) Tube à ajutage amovible
FR882587A (fr) Milli-voltmètre à lampes
FR896993A (fr) Perforatrice à percussion
FR938259A (fr) Perfectionnements aux radiophares à équisignaux
FR934442A (fr) Perfectionnements aux tubes à vide
FR891364A (fr) Perfectionnements aux oscillateurs à lampes