«Previous Article|Table of Contents|Next Article»

³¤°²´óѧѧ±¨£¨×ÔÈ»¿Æѧ°æ£©[ISSN:1006-6977/CN:61-1281/TN]

Issue:

2020Äê5ÆÚ

Page:

105-116

Research Field:

Æû³µÓë»úе¹¤³Ì

Publishing date:

Info

Title:

Influence of coupling of oil supply pressure and maximum opening onª¤hydraulic pressure fluctuation behind solenoid valve

Author(s):

WU Xueª²shun;  DU Deª²feng;  ZHANG Hongª²chuan;  HAN Zhiª²qiang; ZHAO Jiaª²hui;  HU Mingª²yan

£¨1. Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University,ª¤Chengdu 610039, Sichuan, China£» 2. Shanghai Marine Diesel Engine Research Instituteª¤No.711, Shanghai 201108£¬China£©

Keywords:

automotive engineering;  diesel hydraulic pressure fluctuation;  electroª²hydraulic variable valve;  evaluation parameters;  eigenvalues

PACS:

-

DOI:

-

Abstract:

In order to clarify the influence of hydraulic pressure fluctuation on the hydraulic system performance the hydraulic system, based on the electroª²hydraulic variable valve system of marine diesel engine, the evaluation system of pressure fluctuation was established, and the method of combining experiment and simulation was used. The maximum opening ª«dª« (2.5~4.0 mm) and fuel supply pressure ª«Pª« (10~13 MPa) on the instantaneous pressure variation eigenvalues (ª«Pª«ª­a~ª«Pª«ª­i) and characteristic phase (ª«¦Âª«ª­a~ª«¦Âª«ª­i) of hydraulic oil path after solenoid valve of the oil intake solenoid valve was studied. The results show that the characteristic parameter ª«Pª­a,Pª­b,Pª­c,Pª­d,Pª­f,Pª­g,Pª­h,Pª­iª« increased with the increase of oil supply pressure and maximum opening, while the ª«Pª­eª« value is decreased with the increase of oil supply pressure and maximum opening. When the maximum opening ª«dª«¡Ý3.5 mm, the oil quantity reaches the limit hole, the characteristic parameters no longer change, and the characteristic phase ª«¦Âª­aª« and ª«¦Âª­gª« are almost unaffected by the oil supply pressure and the maximum opening, and ª«¦Âª­bª« increases slightly with the increase of the maximum opening. ª«¦Âª­c, ¦Âª­d, ¦Âª­fª« are advanced with the increase of oil supply pressure and maximum opening, and ª«¦Âª­eª« is earlier with the increase of maximum opening, but almost unaffected by oil supply pressure. ª«¦Âª­h, ¦Âª­iª« delay with the increase of oil supply pressure and maximum opening. 3 tabs, 16 figs, 25 refs.

References:

Memo

Memo:

-

Common functions

Last Update: 2020-10-12