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1. (WO2013162195) PULSE DAMPER USING COMPOSITE SPRING

Pub. No.:    WO/2013/162195    International Application No.:    PCT/KR2013/003092
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Sat Apr 13 01:59:59 CEST 2013
IPC: F02M 55/04
F02M 55/02
Applicants: HWANG, Byoung-Chan
황병찬
Inventors: HWANG, Byoung-Chan
황병찬
Title: PULSE DAMPER USING COMPOSITE SPRING
Abstract:
The present invention relates to a pulse damper using a composite spring device for eliminating pulse waves in a plunger pump for supplying fuel so as to maintain the fuel pressure at a constant level without energy loss and to cover a wide range of pressure, which comprises a spring body (31), and a body (21) for receiving an O-ring spacer (23) supported by an internal O-ring cap (25), wherein a low pressure coil spring (51) and a high pressure disk spring (41) are arranged in a line inside the spring body (31) so that the low pressure coil spring (51) primarily works and then stops by making a low pressure spring cover (52) and a low spring pad (53) contact a low pressure spring stopper (34), and secondarily the high pressure disk spring (41) works and then stops by making a high pressure spring pad (14) mounted on one end of a spring guide shaft (12) connected to a piston (11) contact a high pressure spring stopper (33).