Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017152280) PRESSURE REGULATING MODULES WITH CONTROLLED LEAK PATHS
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/152280 International Application No.: PCT/CA2017/050308
Publication Date: 14.09.2017 International Filing Date: 07.03.2017
IPC:
F16K 31/122 (2006.01) ,F02D 19/06 (2006.01) ,F02M 21/02 (2006.01) ,F02M 43/00 (2006.01) ,F23C 1/08 (2006.01) ,F23N 1/00 (2006.01) ,G05D 16/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31
Operating means; Releasing devices
12
actuated by fluid
122
the fluid acting on a piston
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
19
Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
06
peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
21
Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
02
for gaseous fuels
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
43
Fuel-injection apparatus operating simultaneously on two or more fuels or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
C
METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR
1
Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in air
08
liquid and gaseous fuel
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
N
REGULATING OR CONTROLLING COMBUSTION
1
Regulating fuel supply
G PHYSICS
05
CONTROLLING; REGULATING
D
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
16
Control of fluid pressure
04
without auxiliary power
10
the sensing element being a piston or plunger
Applicants:
WESTPORT POWER INC. [CA/CA]; 101-1750 West 75th Avenue Vancouver, British Columbia V6P 6G2, CA
Inventors:
MUMFORD, David K.; CA
Agent:
WESTPORT POWER INC.; 101-1750 West 75th Avenue Vancouver, British Columbia V6P 6G2, CA
Priority Data:
62/304,89207.03.2016US
Title (EN) PRESSURE REGULATING MODULES WITH CONTROLLED LEAK PATHS
(FR) MODULES DE RÉGULATION DE PRESSION AVEC TRAJECTOIRES DE FUITE CONTRÔLÉES
Abstract:
(EN) A pressure regulating module for regulating the pressure of a first fluid using a reference pressure of a second fluid. A pressure transfer assembly including a piston slidably disposed within a cylinder bore between a control fluid chamber and a reference fluid chamber is dimensioned to provide a predefined radial clearance between at least a portion of the outer side wall and the inner circumferential surface of the housing along a predefined axial length of the main body. The predefined radial clearance and predefined axial length are dimensioned to control the flow rate and amount of fluid along one or more fluid communication passages formed between at least a portion of the piston and the housing inner circumferential surface from one or more high pressure fluid zones to a lower pressure fluid zone which can include a leak and/or weep orifice directing fluid to a drain and/or vent circuit.
(FR) L'invention concerne un module de régulation de pression pour réguler la pression d'un premier fluide à l'aide d'une pression de référence d'un second fluide. Un ensemble de transfert de pression comprenant un piston disposé de façon à pouvoir coulisser à l'intérieur d'un alésage de cylindre entre une chambre de fluide de commande et une chambre de fluide de référence est dimensionné de façon à constituer un espacement radial prédéfini entre au moins une partie de la paroi latérale externe et de la surface périphérique interne du boîtier le long d'une longueur axiale prédéfinie du corps principal. L'espacement radial prédéfini et la longueur axiale prédéfinie sont dimensionnées de façon à commander le débit d'écoulement et la quantité de fluide le long d'un ou de plusieurs passages de communication de fluide formés entre au moins une partie du piston et de la surface périphérique interne du boîtier à partir d'une ou de plusieurs zones de fluide à haute pression jusqu'à une zone de fluide à pression plus basse, qui peuvent comprendre un orifice de fuite et/ou de suintement dirigeant un fluide vers un circuit de drain et/ou d'évacuation.
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, 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: English (EN)