Turbocharger
A technology of turbocharger and turbine impeller, which is applied in the direction of machine/engine, liquid fuel engine, mechanical equipment, etc., can solve the problems of increased resistance and hindered boosting efficiency of turbocharger, and achieves reduction of thrust load, The effect of improving supercharging efficiency
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no. 1 approach
[0029] figure 1 is a sectional view of the turbocharger according to the first embodiment of the present invention.
[0030] Such as figure 1 As shown, the turbocharger 1A includes: a turbine wheel 2 ; a compressor wheel 3 ; a rotating shaft 4 ; journal bearings (radial bearings) 5A, 5B; a thrust bearing 8 ; This turbocharger 1A is mounted, for example, in an automobile or the like as an auxiliary machine of an engine in such a posture that the rotating shaft 4 extends in the horizontal direction. here, figure 1 The dotted line shown indicates the central axis C of the rotary shaft 4 .
[0031] The bearing housing 6 is supported by the vehicle body or the like via a bracket (not shown), a compressor P, a turbine T, and the like. The bearing housing 6 has an opening 60a at one end thereof, and an opening 60b at the other end thereof.
[0032] The rotary shaft 4 is rotatably supported around the central axis C while being supported by a radial load perpendicular to the cent...
no. 2 approach
[0065] Next, a second embodiment of the turbocharger of the present invention will be described. The turbocharger shown in the second embodiment differs from the turbocharger in the first embodiment only in the structure of the fluid supply portion. Therefore, in the description of the second embodiment, the same parts as those of the first embodiment will be described with the same symbols, and redundant description will be omitted. That is, description of the overall structure of the turbocharger that is common to the structure described in the first embodiment is omitted.
[0066] figure 2 is a sectional view of a turbocharger according to a second embodiment of the present invention.
[0067] Such as figure 2 As shown, the turbocharger 1B of the second embodiment includes a fluid supply portion 70B that supplies fluid to the first end portion 4a side of the rotary shaft 4 ( figure 1 Right in center) the fluid pushing against the turbine wheel 2 in order to balance th...
no. 3 approach
[0077] Next, a third embodiment of the turbocharger of the present invention will be described. The turbocharger of the third embodiment is different from the turbochargers of the first and second embodiments only in the structure of the fluid supply part. Therefore, in the description of the third embodiment, the same symbols are attached to the same parts, and repeated descriptions are omitted. That is, the description will focus on the points of difference from the first and second embodiments, and the description of the overall configuration of the turbocharger that is common to the configuration described in the first and second embodiments will be omitted.
[0078] image 3 is a sectional view of a turbocharger according to a third embodiment of the present invention.
[0079] Such as image 3 As shown, the turbocharger 1C of the third embodiment includes a fluid supply part 70C that supplies fluid to the first end part 4a side of the rotary shaft 4 ( figure 1 Right ...
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