Dilution suppression device of lubricating oil for internal combustion engine

Abstract

A dilution suppression device 1 consists of a container 11 that can hold lubricating oil O containing a fuel component of an engine, a lubricating oil injection section 12 that injects lubricating oil O into the container 11, an absorption section 13 that is provided inside the container 11 and can absorb lubricating oil O, an internal pressure reduction section 14 that reduces the internal pressure of the container, a heating section 15 that heats the lubricating oil O to separate the fuel component from the lubricating oil O, a gas introduction section 16 that introduces gas into the container 11, a fuel component discharge section 17 that discharges the fuel component from the container 11, and a lubricating oil discharge section 18 that discharges the lubricating oil O with the fuel component separated from the container 11.

1 . A dilution suppression device of lubricating oil for an internal combustion engine, comprising:
 a container that is capable of holding lubricating oil containing a fuel component;   a lubricating oil injection section that injects the lubricating oil into the container;   an absorption section that is provided inside the container and capable of absorbing the lubricating oil;   an internal pressure reduction section that reduces internal pressure of the container;   a heating section that heats the lubricating oil to separate the fuel component from the lubricating oil;   a gas introduction section that introduces gas into the container;   a fuel component discharge section that discharges the fuel component from the container; and   a lubricating oil discharge section that discharges the lubricating oil of which the fuel component was separated, from the container.   
     
     
         2 . The dilution suppression device of lubricating oil for an internal combustion engine according to  claim 1 , wherein the internal pressure reduction section is configured of:
 a lubricating-oil injection section opening/closing portion provided in the lubricating oil injection section;   a gas introduction section opening/closing portion disposed in the gas introduction section;   a fuel-component discharge section opening/closing portion disposed in the fuel component discharge section;   a lubricating-oil discharge section opening/closing portion disposed in the lubricating oil discharge section; and   a negative pressure generation section connected to the fuel component discharge section.   
     
     
         3 . The dilution suppression device of lubricating oil for an internal combustion engine according to  claim 2 , wherein the negative pressure generation section is an intake manifold of an internal combustion engine. 
     
     
         4 . The dilution suppression device of lubricating oil for an internal combustion engine according to any one of  claims 1  to  3 , wherein the heating section heats the lubricating oil by heating the absorption section. 
     
     
         5 . The dilution suppression device of lubricating oil for an internal combustion engine according to any one of  claims 1  to  4 , wherein the absorption section is a filter material capable of absorbing the lubricating oil. 
     
     
         6 . The dilution suppression device of lubricating oil for an internal combustion engine according to  claim 5 , wherein the dilution suppression device has a function as an oil filter. 
     
     
         7 . The dilution suppression device of lubricating oil for an internal combustion engine according to any one of  claims 1  to  6 , wherein the dilution suppression device is attached to a headcover of an internal combustion engine.