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Exhaust-gas turbocharger

An exhaust turbine and supercharger technology, which is applied in gas turbine installations, machines/engines, thin material processing, etc., can solve problems such as aggravation of sealing problems and heating, and achieve the effect of improving sealing effect.

Inactive Publication Date: 2012-01-25
BORGWARNER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the helical tube (especially in the inlet region) is very strongly heated by the hot exhaust gases, due to the thermal load, various sealing problems arise in the known design, in the open state These sealing problems are exacerbated by the lower wing being directly impacted by the main stream of exhaust gases emitted by the turbine wheel
[0003] Furthermore, the axis of rotation of known exhaust-gas turbochargers with a wastegate arrangement extends perpendicularly to the supercharger axis, so that the adjusting rod is substantially axially relative to the supercharger axis together with the control box. aligned upwards, which in part causes various space problems and thus problems during the installation of the exhaust turbocharger

Method used

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Embodiment Construction

[0015] figure 1 An exhaust-gas turbocharger 1 is shown comprising a compressor 2 and a turbine 3 connected to each other via a rotor 4 in the usual manner. Such as figure 1 As shown, the rotor 4 extends along the charger axis L and supports a turbine wheel 19 and a compressor wheel 20 at its ends in the usual manner. The exhaust-gas turbocharger 1 is equipped with a known wastegate arrangement WG with a control box SD. In an exhaust-gas turbocharger 1 according to the invention with its essential components as explained above, said known wastegate arrangement WG is replaced by a wastegate arrangement 5 according to the invention, which will be described in The details will be described below.

[0016] However, a description of all other components, which of course also includes the exhaust-gas turbocharger 1 , can be omitted in order to explain the principle of the invention.

[0017] Therefore, based on the Figure 2 to Figure 4 For a juxtaposed description, the exhaust-...

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Abstract

The invention relates to an exhaust-gas turbocharger (1) having a wastegate arrangement (5) in which the structural adaptability to different installation situations and the sealing action of the wastegate arrangement (5) are improved. The exhaust-gas turbocharger comprises a compressor (2), a turbine (3) which has a turbine housing (16) with a spiral (15) and which is connected to the compressor (2) by means of a rotor (4) which extends along a charger axis (L), and a wastegate arrangement (5) of the turbine (3).; The wastegate arrangement (5) has a control capsule (6), a regulating rod (7) which can be moved by the control capsule (6), a lever (8) which is connected to the regulating rod (7) by means of a guide piece (9), and a spindle shaft (10) which is connected at one end to the lever (8) and at the other end to a spindle (11) which bears a flap plate (12) for opening and closing a bypass opening (13). Here, the spindle shaft (10) is arranged substantially parallel to the charger axis (L).

Description

technical field [0001] The invention relates to an exhaust-gas turbocharger according to the preamble of claim 1 . Background technique [0002] Known exhaust-gas turbochargers with a so-called wastegate arrangement have a flap which can be actuated via a control box and a lever mechanism and which regulates the throughput of a bypass opening , the bypass opening leads directly from the inlet region of the helical tube of the turbine housing to the outlet from the turbine. Since the helical tube (especially in the inlet region) is heated very strongly by the hot exhaust gas, due to the thermal load, various sealing problems arise in the known design, in the open state These sealing problems are exacerbated by the lower wing being directly impacted by the main flow of exhaust gas emitted by the turbine wheel. [0003] Furthermore, the axis of rotation of known exhaust-gas turbochargers with a wastegate arrangement extends perpendicularly to the supercharger axis, so that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/12F02B39/02F02B39/16F01D25/24
CPCY02T10/144F02B37/186F02C6/12F01D17/105Y02T10/12Y10T137/8741F01D25/24F02B37/12F02B39/02F02B39/16
Inventor C·科夫
Owner BORGWARNER INC