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Patent Searching and Data


Title:
内燃機関の弁ピストンシステム及び内燃機関
Document Type and Number:
Japanese Patent JP7248413
Kind Code:
B2
Abstract:
A valve-piston system (20) of a cylinder of an internal combustion engine, with a piston (26) that is moveably guided up and down, with at least one inlet-side gas exchange valve (21) and at least one exhaust-side gas exchange valve (22), wherein the piston (26) on an end facing the gas exchange valves (21, 22) has a central piston trough (27) and lateral valve pockets (28) facing the gas exchange valves (21, 22), which merge into the central piston trough (27), and wherein the respective valve pocket (28) is formed disc section-like or funnel section-like in such a manner that a face (29) of the same facing the respective gas exchange valve (21, 22) is inclined relative to a perpendicular (30) to the axial direction of the piston (26) of a perpendicular (30) to the axial direction (25) of a valve body (24) of the respective gas exchange valve (21, 22).

Inventors:
Marcel Morgenstern
Application Number:
JP2018223417A
Publication Date:
March 29, 2023
Filing Date:
November 29, 2018
Export Citation:
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Assignee:
MAN ENERGY SOLUTIONS SE
International Classes:
F02B23/06; F01L3/06; F02F3/26; F16J1/00
Domestic Patent References:
JP6221438U
JP201221429A
Foreign References:
US20150107559
CN102667093A
Attorney, Agent or Firm:
Murayama Yasuhiko
Shinya Mihiro
Tatsuhiko Abe