JPS6155134U

JPS6155134U -

Info

Publication number: JPS6155134U
Application number: JP7286785U
Authority: JP
Priority date: 1985-05-16
Filing date: 1985-05-16
Publication date: 1986-04-14

Description

[Brief explanation of the drawing]

第１図は従来の排気タービン式過給機のタービ
ン側の断面図、第２図は本考案の一実施例である
過給機のタービン側の断面図、第３図は内燃機関
の回転数と各部の温度との関係を比較して示す線
図、第４図は第２図の変形例である遮熱板の断面
図である。１……タービンケース、３……タービンホイー
ル、５……ハウジング、６……回転軸、７……軸
受部、１０……溝部、１１……シールリング、１
２……先端孔、１３……遮熱板、１４，１５，２
０……空気室、１６……段差部、１７……フラン
ジ部、１８，１９……中心孔、２１……鍔部。 Fig. 1 is a sectional view of the turbine side of a conventional exhaust turbine supercharger, Fig. 2 is a sectional view of the turbine side of a supercharger that is an embodiment of the present invention, and Fig. 3 is the rotational speed of the internal combustion engine. FIG. 4 is a cross-sectional view of a heat shield plate that is a modification of FIG. 2. DESCRIPTION OF SYMBOLS 1... Turbine case, 3... Turbine wheel, 5... Housing, 6... Rotating shaft, 7... Bearing part, 10... Groove part, 11... Seal ring, 1
2... Tip hole, 13... Heat shield plate, 14, 15, 2
0... Air chamber, 16... Step portion, 17... Flange portion, 18, 19... Center hole, 21... Flange portion.

Claims

[Claims for Utility Model Registration] 1. An exhaust turbine type in which exhaust gas from an internal combustion engine drives a turbine, and air is compressed into the cylinders of the internal combustion engine by a compressor wheel installed coaxially with the turbine wheel. In a supercharger, the turbine wheel and the turbine case form a bearing part of a rotating shaft to which the turbine wheel and the compressor wheel are attached, and the end face of a housing that connects the turbine case and the compressor case. A plurality of heat shield plates are installed in the air chamber to overlap and surround the end faces of the housing, and the intervals between the center holes of these heat shield plates and the end faces of the housing are set at the rotating shaft. An exhaust turbine supercharger characterized in that the width of the seal ring is smaller than the width of the seal ring installed in the groove, and the seal ring is configured to be able to be inserted into the rotating shaft before the turbine wheel is mounted. 2. Utility model registration claim 1, wherein the heat shield plate is a plurality of metal plates whose peripheral portions are sandwiched between the flange portion of the housing and the stepped portion of the turbine case, and which partition the air chamber. Exhaust turbine supercharger described. 3. The heat shield plate is parallel to a metal plate whose peripheral portion is sandwiched between the flange portion of the housing and the stepped portion of the turbine case, with other metal plates apart from the peripheral portion. The exhaust turbine type supercharger according to claim 1, which is a plurality of metal plates welded to each other to partition the air chamber.