Processing

Please wait...

Settings

Settings

Goto Application

1. DE000019934357 - Flat tube damper for pressure oscillations in car fuel hoses comprises narrow tube with internal chamber, at least part of the tube wall being deformed by pressure of fuel to alter cross-section of chamber

Office
Germany
Application Number 19934357
Application Date 22.07.1999
Publication Number 000019934357
Publication Date 25.01.2001
Publication Kind A1
IPC
F16L 55/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
55Devices or appurtenances for use in, or in connection with, pipes or pipe systems
04Devices damping pulsations or vibrations in fluids
F02M 55/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55Fuel-injection apparatus characterised by their fuel conduits or their venting means
04Means for damping vibrations in injection-pump inlets
CPC
F02M 37/0041
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
0011Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
0041Means for damping pressure pulsations
F02M 37/0047
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
0047Layout or arrangement of systems for feeding fuel
F02M 55/025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55Fuel-injection apparatus characterised by their fuel conduits or their venting means; ; Arrangements of conduits between fuel tank and pump F02M37/00
02Conduits between injection pumps and injectors ; , e.g. conduits between pump and common-rail or conduits between common-rail and injectors
025Common rails
F02M 55/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55Fuel-injection apparatus characterised by their fuel conduits or their venting means; ; Arrangements of conduits between fuel tank and pump F02M37/00
04Means for damping vibrations ; or pressure fluctuations; in injection pump inlets ; or outlets
F02M 63/0225
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; ; Combination of fuel pump with other devices, e.g. lubricating oil pump
02Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
0225Fuel-injection apparatus having a common rail feeding several injectors
F02M 69/465
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
69Low-pressure fuel-injection apparatus ; ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
46Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
462Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
465of fuel rails
Applicants BOSCH GMBH ROBERT
Inventors SCHWEGLER HELMUT
MAIER MARTIN
Title
(DE) Flachrohrdruckdämpfer zur Dämpfung von Flüssigkeits-Druckschwingungen in Flüssigkeitsleitungen
(EN) Flat tube damper for pressure oscillations in car fuel hoses comprises narrow tube with internal chamber, at least part of the tube wall being deformed by pressure of fuel to alter cross-section of chamber
Abstract
(DE)

Die Erfindung betrifft einen Flachrohrdruckdämpfer (1) zur Dämpfung von Flüssigkeits-Druckschwingungen in Flüssigkeitsleitungen, insbesondere von Kraftstoff-Druckschwingungen in Kraftstoffversorgungsleitungen von Kraftfahrzeugen, mit mindestens einer länglichen Kammer (24), deren Querschnitt klein gegenüber ihrer Längserstreckung ist und von welcher mindestens ein Teil der Kammerwand (26), mit der Flüssigkeit in Wirkverbindung stehend, durch die Flüssigkeits-Druckschwingungen elastisch verformbar ist. DOLLAR A Die Erfindung sieht vor, daß, entlang der Längserstreckung der Kammer (24) gesehen, sich deren Querschnitt kontinuierlich oder stufenweise ändert.

(EN)

The flat tube damper for pressure oscillations in car fuel hoses comprises a narrow tube with an internal chamber (24). At least a part of the tube wall (26) can be deformed by the pressure of the fuel to alter the cross-section of the chamber.