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1.发明公开
公开(公告)号：EP4239168A3
公开(公告)日：2023-10-25
申请号：EP23177411.8
申请日：2016-10-19
摘要： Disclosed herein is a method for controlling supply of cylinder oil containing a base to a cylinder of a running large two-stroke crosshead engine, the large two-stroke crosshead engine having cylinders comprising a cylinder liner with a reciprocating piston therein, the method comprising: feeding the cylinder oil to the cylinder at a variable and controllable cylinder oil feed rate and with a variable and controllable basicity (TBN); adjusting the variable cylinder oil feed rate to an actual lubrication need of an inner surface of the cylinder liner; adjusting a total amount of detergent in the cylinder oil to an actual need for a presence of detergent in the cylinder liner; and adjusting a capacity to neutralize acidic combustion products in the cylinder resulting from an actual cylinder oil feed rate and basicity (TBN) by adjusting the basicity of the cylinder oil to an actual need of the inner surface of the cylinder liner for protection against acidic combustion products in the cylinder liner.
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2.发明公开
公开(公告)号：EP4239168A2
公开(公告)日：2023-09-06
申请号：EP23177411.8
申请日：2016-10-19
摘要： Disclosed herein is a method for controlling supply of cylinder oil containing a base to a cylinder of a running large two-stroke crosshead engine, the large two-stroke crosshead engine having cylinders comprising a cylinder liner with a reciprocating piston therein, the method comprising: feeding the cylinder oil to the cylinder at a variable and controllable cylinder oil feed rate and with a variable and controllable basicity (TBN); adjusting the variable cylinder oil feed rate to an actual lubrication need of an inner surface of the cylinder liner; adjusting a total amount of detergent in the cylinder oil to an actual need for a presence of detergent in the cylinder liner; and adjusting a capacity to neutralize acidic combustion products in the cylinder resulting from an actual cylinder oil feed rate and basicity (TBN) by adjusting the basicity of the cylinder oil to an actual need of the inner surface of the cylinder liner for protection against acidic combustion products in the cylinder liner.
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3.发明公开
公开(公告)号：EP3365539A1
公开(公告)日：2018-08-29
申请号：EP16856963.0
申请日：2016-10-19
IPC分类号： F01M9/02
CPC分类号： F01M9/02 , F01M11/10 , F01M2001/123 , F01M2011/022 , F01M2250/62 , F01M2250/64 , F16N2270/54
摘要： A method for controlling supply of cylinder oil containing a base to a cylinder of a running large two-stroke crosshead engine, the large two-stroke crosshead engine having cylinders comprising a cylinder liner with a reciprocating piston therein. The method comprises: - feeding the cylinder oil to the cylinder at a variable and controllable cylinder oil feed rate and with a variable and controllable basicity (TBN), - a capacity to neutralize acidic combustion products in the cylinder resulting from the actual cylinder oil feed rate and basicity (TBN), - adjusting the variable cylinder oil feed rate to an actual lubrication need of the inner surface of the cylinder liner, and - adjusting the capacity to neutralize acidic combustion products in the cylinder by adjusting the basicity of the cylinder oil to the actual need of the inner surface of the cylinder liner for protection against acidic combustion products in the cylinder liner. It is suggested that Fig. 1 is published with the abstract.
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4.发明公开
公开(公告)号：EP3341595A1
公开(公告)日：2018-07-04
申请号：EP16838609.2
申请日：2016-08-24
IPC分类号： F01M9/02 , C10M177/00 , F16N39/08
CPC分类号： C10M177/00 , C10N2230/02 , C10N2230/52 , C10N2240/103 , F01M9/02 , F01M2001/083 , F16N7/40 , F16N39/08
摘要： A method for preparing an oil to be supplied to the cylinders of a two-stroke crosshead engine (1) with crossheads (5), pistons in cylinder liners (2) and with a crankcase lubrication system operating with system oil, the method comprising: - determining or estimating the actual cylinder liner temperature, - determining an actual desired viscosity for the oil that is supplied to the cylinders at the determined actual cylinder liner temperature, - withdrawing system oil from the crankcase lubrication system and/or providing a base oil, - preparing an oil for supplying to the cylinders by blending the withdrawn system oil and/or base oil with a TBN agent, and - adjusting the viscosity of the prepared oil to the actual desired viscosity by blending the prepared oil with a viscosity agent to obtain a viscosity adjusted oil to be supplied to the cylinders.
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