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1. (WO2018219526) EXTERNAL GEAR MACHINE
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Pub. No.: WO/2018/219526 International Application No.: PCT/EP2018/058556
Publication Date: 06.12.2018 International Filing Date: 04.04.2018
IPC:
F04C 2/18 (2006.01) ,F04C 15/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
C
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
2
Rotary-piston machines or pumps
08
of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
12
of other than internal-axis type
14
with toothed rotary pistons
18
with similar tooth forms
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
C
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
15
Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/-F04C14/164
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
BRANCZEISZ, Jakob; DE
RIEDLE, Matthias; DE
BREDENFELD, Guido; DE
Priority Data:
10 2017 209 022.730.05.2017DE
Title (EN) EXTERNAL GEAR MACHINE
(FR) MACHINE À ROUES DENTÉES EXTÉRIEURES
(DE) AUßENZAHNRADMASCHINE
Abstract:
(EN) The invention relates to an external gear machine (10) comprising two gears (11, 12) that intermesh in external engagement, the gears (11, 12) being surrounded by a housing (20) comprising contact areas in which each gear (11, 12) is positioned on a housing contour. The aim of the invention is to produce an external gear machine that can be operated with low-viscosity media such as ORC fluids, in a problem-free manner. To this end, the housing contour has a sealed trace (24) in the contact area for the gear (12).
(FR) L’invention concerne une machine à roues dentées extérieures (10) comprenant deux roues dentées (11, 12) qui ont prise par engrènement extérieur, les roues dentées (11, 12) étant entourées par un boîtier (20) qui comprend des zones d’appui dans lesquelles chaque roue dentée (11, 12) s’appuie sur un contour de boîtier. Pour créer une machine à roues dentées extérieures pouvant fonctionner sans problèmes avec des fluides de faible viscosité, tels que des fluides ORC, le contour de boîtier dans la zone d’appui pour la roue dentée (12) comprend une piste d’étanchéité (24).
(DE) Die Erfindung betrifft eine Außenzahnradmaschine (10) mit zwei Zahnrädern (11,12), die im Außeneingriff miteinander kämmen, wobei die Zahnräder (11,12) von einem Gehäuse (20) umgeben sind, das Anlagebereiche aufweist, in denen jedes Zahnrad (11,12) an einer Gehäusekontur anliegt. Um eine Außenzahnradmaschine zu schaffen, die mit niedrigviskosen Medien, wie ORC-Fluiden, problemlos betrieben werden kann, weist die Gehäusekontur in dem Anlagebereich für das Zahnrad (12) eine Dichtspur (24) auf.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)