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Pub. No.: WO/2018/143897 International Application No.: PCT/SI2017/000024
Publication Date: 09.08.2018 International Filing Date: 15.09.2017
IPC:
F02B 23/06 (2006.01) ,F02F 3/28 (2006.01) ,F04B 39/00 (2006.01) ,F04B 53/14 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23
Other engines characterised by special shape or construction of combustion chambers to improve operation
02
with compression ignition
06
the combustion space being arranged in working piston
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F
CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
3
Pistons
28
Other pistons with specially-shaped head
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
39
Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/-F04B37/225
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
53
Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/-F04B23/ or F04B39/-F04B47/203
14
Pistons, piston-rods or piston-rod connections
Applicants: SAJOVIC, Igo[SI/SI]; SI
Inventors: SAJOVIC, Igo; SI
Agent: BORSTAR, Dusan; Nova ulica 11 1230 Domzale, SI
Priority Data:
P-20170003201.02.2017SI
Title (EN) PISTON MACHINE
(FR) MACHINE À PISTON
Abstract:
(EN) The purpose of the invention is to create a piston machine, in which both a cylinder (1) and also a piston (2), which is translatory-oscillating movable to and from within said cylinder, could be made of materials on the basis of ceramics, and in addition to that, when such machine is used as a gasoline or diesel internal combustion engine, then the combustion of each fuel within a combustion chamber (6) could be essentially improved, which would then lead to essentially decreasing of harmful combustion gasses, in particular of NO and NO2, i.e. NOx, when compared with currently known gasoline or diesel internal combustion engines. A cylinder (1) of such piston machine comprises a smooth internal surface area (10), which is on its side, which is faced away from the piston rod (3), ended with a radially inwards protruding upper rectangular step (111), and on the opposite side, which is faced towards the piston rod (3), with a radially inwards protruding lower rectangular step (112). A combustion chamber (6) within the cylinder (1) is in a direction away from said piston rod (3) extended by a conical chamber (11) having a pre-determined angle (a) of its tip (110). Said piston (2) is on its side, which is faced away from the piston rod (3), furnished with a radially outwards protruding rim (21), the outer diameter of which is adjusted on the one hand to the internal diameter of said smooth internal surface area (10) of the cylinder (1) and on the other hand also to said steps (111, 112).
(FR) L’objectif de l’invention est de créer une machine à piston, dans laquelle un cylindre (1) et également un piston (2), qui est mobile par oscillation par translation vers et depuis l’intérieur dudit cylindre, peuvent tous deux être constitués de matériaux à base de céramique, et en outre, lorsqu’une telle machine est utilisée en tant que moteur à combustion interne à essence ou diesel, la combustion de chaque carburant dans une chambre de combustion (6) pourrait être sensiblement améliorée, ce qui conduirait alors à réduire sensiblement les gaz de combustion nocifs, en particulier de NO et NO2, c’est-à-dire NOx, par rapport aux moteurs à combustion interne à essence ou diesel actuellement connus. Un cylindre (1) d’une telle machine à piston comprend une zone de surface interne lisse (10), qui se trouve sur son côté, qui est opposé à la tige de piston (3), terminée par un gradin rectangulaire supérieur faisant saillie radialement vers l’intérieur (111) et, sur le côté opposé, qui fait face à la tige de piston (3), par un gradin rectangulaire inférieur faisant saillie radialement vers l’intérieur (112). Une chambre de combustion (6) à l’intérieur du cylindre (1) est dans une direction opposée à ladite tige de piston (3) étendue par une chambre conique (11) ayant un angle prédéterminé (a) de sa pointe (110). Ledit piston (2) est sur son côté, qui est opposé à la tige de piston (3), pourvu d’un rebord saillant radialement vers l’extérieur (21) dont le diamètre externe est ajusté d’une part au diamètre interne de ladite zone de surface interne lisse (10) du cylindre (1) et d’autre part, également auxdits gradins (111, 112).
front page image
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: English (EN)
Filing Language: ???LANGUAGE_SYMBOL_SL??? (SL)