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1. CN1318132 - Hat tubular pressure damper for damping fluid pressure oscillations in fluid lines

Office
China
Application Number 00801465.5
Application Date 11.07.2000
Publication Number 1318132
Publication Date 17.10.2001
Grant Number 1133807
Grant Date 07.01.2004
Publication Kind C
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 37/00
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
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 Robert Bosch GmbH
罗伯特·博施有限公司
Inventors Helmut Schwegler
赫尔穆特·施韦格勒
Martin Maier
马丁·迈尔
Agents zeng li
永新专利商标代理有限公司
Priority Data 19934357 22.07.1999 DE
Title
(EN) Hat tubular pressure damper for damping fluid pressure oscillations in fluid lines
(ZH) 用于阻尼液体管道内液体压力脉动的扁管式压力阻尼器
Abstract
(EN)
The invention relates to a flat tubular pressure damper (1) for damping fluid pressure oscillations in fluid lines, in particular, fuel pressure oscillations in motor vehicle fuel supply lines. Said damper comprises at least one oblong chamber (24) whose cross-section is small compared to its longitudinal extension, and of which at least a portion of the chamber wall (26) which is actively in contact with the fluid can be elastically deformed by the fluid pressure oscillations. The invention provides that the cross-section of the chamber (24), when viewed along the longitudinal extension of the same, varies continuously or progressively.

(ZH)

本发明涉及已知用于阻尼液体管道内液体压力脉动、特别是汽车燃油供应管道内燃油压力脉动的扁管式压力阻尼器(1),具有至少一个长形室(24),其横截面与其纵向长度相比小,其中至少室壁(26)的一部分与液体处于作用连接地通过液体压力脉动被弹性变形。本发明预定,沿着室(24)纵向长度看,其横截面连续地或者逐级地变化。