发明名称 LUBRICATING SYSTEM FOR INTERNAL COMBUSTION ENGINE
摘要 <p>AN OIL PASSAGE EXTENDING FROM AN OIL PUMP (26) TO A DISCHARGE PORT IN AN INTERNAL COMBUSTION ENGINE IS, AT ITS HALFWAY POINT, BRANCHED INTO AT LEAST TWO OIL PASSAGES, FOR EXAMPLE, A FIRST OIL PASSAGE (44) AND A SECOND OIL PASSAGE (45). ONE OF THE AT LEAST TWO BRANCHED OIL PASSAGES, FOR EXAMPLE, THE SECOND OIL PASSAGE (45) IS PROVIDED WITH A RESTRICTING PORTION CONFIGURED AS A FIRST ORIFICE (83)FOR RESTRICTING A FLOW.AMOUNT OF OIL BY REDUCING A DIAMETER OF THE FIRST ORIFICE (83). A BYPASS VALVE (92) IS PROVIDED WHICH ACTS, WHEN A HYDRAULIC PRESSURE IN THE SECOND OIL PASSAGE (45) EXCEEDS A SPECIFIC VALUE, TO BYPASS THE FIRST ORIFICE (83) SO AS TO INCREASE THE FLOW RATE OF OIL. IT IS POSSIBLE TO INCREASE THE HYDRAULIC PRESSURE AT THE TIME OF LOW SPEED ROTATION UP TO A NECESSARY PRESSURE ONLY BY PROVIDING THE RESTRICTING PORTION, WITHOUT ENHANCING THE PERFORMANCE OF THE OIL PUMP (26).ACCORDINGLY, IT IS POSSIBLE TO SUPPRESS THE INCREASE IN WEIGHT AND COST OF THE LUBRICATING SYSTEM (10) AS COMPARED WITH THE PRIOR ART LUBRICATING SYSTEM IN WHICH THE PERFORMANCE OF THE OIL PUMP (26) IS ENHANCED, AND SINCE IT IS NOT REQUIRED TO INCREASE THE ROTATIONAL SPEED OF THE OIL PUMP (26), IT IS POSSIBLE TO PREVENT THE LOSS IN OUTPUT OF THE INTERNAL COMBUSTION ENGINE DUE TO THE INCREASED FRICTION OF THE OIL PUMP (26). FURTHER, IT IS POSSIBLE TO PREVENT AN EXCESSIVE INCREASE IN PRESSURE OF THE OIL PASSAGE BY THE EFFECT OF THE BYPASS VALVE (92).(FIG 4)</p>
申请公布号 MY128922(A) 申请公布日期 2007.02.28
申请号 MY2001PI02081 申请日期 2001.05.04
申请人 HONDA GIKEN KOGYO KABUSHIKI KAISHA 发明人 KATSUHIKO ITO;YOSHIHIRO YOSHIDA;KAZUHIRO YASUDA;HIDEYUKI TAWARA
分类号 F01M1/20;F01M1/12;F01M1/16 主分类号 F01M1/20
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