Two-stroke diesel engine starting, braking and reverse method and its device

Application Number: 00108153
Application Date: 2000.04.29
Publication Number: 1272594
Publication Date: 2000.11.08
Priority Information: 1999/4/30 EP 99810363.4
International: F02N9/04
Applicant(s) Name: Wartsila NSD Schweiz AG
Inventor(s) Name: F. Pochete
Patent Agency Code: 72001
Patent Agent: zhou beilin
Abstract A two stroke diesel engine can economically carry out the start, brake and reverse is provided. A compressed air is supplied to at least one cylinder, in response to the rotational angle of a crank shaft so as to accelerate or brake a piston positioning in the cylinder by pressure change. The cylinder has at least one outlet valve opening/closing responding to the rotational angle of the crank shaft. The cylinder is maintained in a noncompression state by moving a closing point 22b of this outlet valve to the upper dead point (OTP) side and early stage pressure drop in the cylinder is generated, by moving the release point 22a of the outlet valve to the upper dead point (OTP) side.