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Dive into the research topics where Pengfei Ma is active.

Publication


Featured researches published by Pengfei Ma.


Archive | 2011

Hydraulic control system having energy recovery kit

Pengfei Ma; Jiao Zhang; Tonglin Shang; Peter Spring; Dayao Chen; Salik Syed; John Ferraz; Randal N. Peterson


Archive | 2012

Hydraulic control system having swing motor energy recovery

Jiao Zhang; Tonglin Shang; Peter Spring; Pengfei Ma; Randal N. Peterson


Archive | 2005

Independent metering valve control system and method

Jiao Zhang; Pengfei Ma; Aleksandar M. Egelja; Michael T. Verkuilen


Archive | 2004

Electronically and hydraulically-actuated drain value

Mark P. Vonderwell; Yun Guo; Mikhall A. Sorokine; Aleksandar M. Egelja; Pengfei Ma


Archive | 2011

ENERGY RECOVERY SYSTEM HAVING ACCUMULATOR AND VARIABLE RELIEF

Jiao Zhang; Dayao Chen; Pengfei Ma; Tonglin Shang; Lawrence J. Tognetti; Jeffrey L. Kuehn


Archive | 2013

HYDRAULIC ACCUMULATOR HEALTH MONITOR

Pengfei Ma; Dayao Chen; Randal N. Peterson


Archive | 2012

HYDRAULIC CONTROL SYSTEM HAVING SWING ENERGY RECOVERY

Pengfei Ma; Jiao Zhang; Dayao Chen; Tonglin Shang


Archive | 2012

Electro-hydraulic system for recovering and reusing potential energy

Jiao Zhang; Pengfei Ma; Tonglin Shang; Gang Victor Wen; Bryan E. Nelson; Dayao Chen


Archive | 2012

ENERGY RECOVERY SYSTEM HAVING INTEGRATED BOOM/SWING CIRCUITS

Gang Victor Wen; Pengfei Ma; Jiao Zhang; Tonglin Shang


Archive | 2015

HYDRAULIC SYSTEM HAVING ENERGY RECOVERY

Pengfei Ma; Jeffrey L. Kuehn; Jeremy T. Peterson

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