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    • 3. 发明专利
    • MOUNTING METHOD OF ENGINE OIL PAN
    • JPS6043155A
    • 1985-03-07
    • JP15071283
    • 1983-08-17
    • TOYOTA MOTOR CO LTD
    • SASAKI YOSHIONOZAWA AKIRASHIBATA SEISHI
    • F01M11/00F02F7/00F02F11/00F16J15/14
    • PURPOSE:To prevent leakage of oil and improve the incorporating property of a pan by a method wherein liquid gasket is coated on the protruded arcic surface of a member at the side of an engine and the oil pan, coated with the liquid gasket on the mounting surface thereof, is pressed against and fixed to the engine side member when the liquid gasket, coated on the engine side member, is dried or half dried. CONSTITUTION:The semi-arcic protruded surface of an oil seal retainer 6 of the engine side member, which is positioned so as to oppose to the recessed arciform surface 4 of the oil pan 2, is the mounting surface for the oil pan and the engine side mounting surface except said mounting surface is flat. A recess 10 is formed on the recessed semi-arciform surface 4 of the oil pan 2 along the whole length thereof while a recessed groove 11 is indented at the center of axial direction of the semi-arciform protruded mounting surface 7 of the oil seal retainer 6 along the whole periphery of circumferential direction of the semi-arciform protruded mounting surface 7 and a part of the flat mounting surface. The liquid gasket is coated on the recessed groove 11 and is half dried or dried, thereafter, the liquid gasket is coated on the whole periphery of the mounting surface 3 of the oil pan 2 and, then, both of them are pressed and fixed.
    • 5. 发明专利
    • METHOD OF SEALING GROOVED TYPE FLANGE
    • JPS58163865A
    • 1983-09-28
    • JP4702582
    • 1982-03-24
    • THREE BOND CO LTDTOYOTA MOTOR CO LTD
    • TAKEUCHI YUKIOSHIBATA SEISHINOZAWA AKIRA
    • F16J15/14F16L23/16
    • PURPOSE:To obtain stability of long period and high reliability to grooved type flanges of various shapes, by casting liquid sealing material in the groove of the grooved type flange into which an annular bank of one of joint surfaces is fitted, and pressingly mating both joint surfaces after the sealing material is cured. CONSTITUTION:A circular bank 3 on one of flanges is abutted to a sealing material 7 which is made resilient in a groove 5, and then the opposite surfaces of both flanges are pressingly contacted together by fastening a bolt 6 so that sealing is obtained. Since the sealing material 7 is held in a thickness larger than the clearance between the top of the bank 3 and the bottom of the groove 5, the sealing material 7 is partly built up into the gaps each defined between one of the lateral walls of the circular bank 3 and the associated lateral wall of the groove 5 when both flanges are mated at their opposed contacting surfaces 8 in the condition of metal touch. Thereby, the surface pressure exerted to the outer surface of the resilient material 7 given with resiliency, is relaxed so that it is not subjected directly to rigid strain due to flange vibration, thereby liquid leakage due to pumping action may be prevented.