Title:
PULSATION REDUCER USING DOUBLE-SIDED MULTILAYER WAVEFORM SPRING
Document Type and Number:
WIPO Patent Application WO/2017/047941
Kind Code:
A1
Abstract:
The present invention relates to a pulsation reducer which comprises: an inlet-expanded fuel rail (40) on which a cross-sectionally expanded fuel rail inlet (41) is formed expanded to the same size as the cross section of a high pressure fuel line (31); a spring housing (61) within which a fuel storage space (611), a low pressure movement space (613) connected to the fuel storage space (611) via communicating holes (612a, 612b), and a high pressure movement space (614) are formed; connecting parts (62a, 62b, 62c) connecting the spring housing (61) and the inlet-expanded fuel rail (40); a low pressure reducing part (63) having a low pressure multilayer waveform spring (631) disposed in the low pressure movement space (613), and reducing compound pulse waves in a low pressure region; and a high pressure reducing part (64) having a high pressure multilayer waveform spring (641) disposed in the high pressure movement space (614), and reducing compound pulse waves in a high pressure region. The fuel storage space (611) is connected to the inside of the inlet-expanded fuel rail (40), and compound pulse waves, together with fuel, progress from inside the inlet-expanded fuel rail (40) through the fuel storage space (611) and arrive at the low pressure reducing part (63) and the high pressure reducing part (64) so as to be reduced.
Inventors:
HWANG HYUN SIK (KR)
Application Number:
PCT/KR2016/009332
Publication Date:
March 23, 2017
Filing Date:
August 23, 2016
Export Citation:
Assignee:
HWANG HYUN SIK (KR)
International Classes:
F02M55/04; F02M37/00; F02M55/02
Foreign References:
| KR20130121280A | 2013-11-06 | |||
| KR101335871B1 | 2013-12-02 | |||
| JPH08261098A | 1996-10-08 | |||
| KR20090114686A | 2009-11-04 | |||
| JP2000192872A | 2000-07-11 |
Attorney, Agent or Firm:
KIM, Jin Dong (KR)
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