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Bypass valve with cover skirt and exhaust gas turbocharger with such a bypass valve

A technology of exhaust gas turbine and bypass valve, which is applied in the direction of lifting valve, control valve, valve device, etc., and can solve problems such as wear and tear

Active Publication Date: 2021-02-09
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, these embodiments have the disadvantage that a solid valve body increases the weight and thus the inertia and can lead to increased wear in the event of excited vibrations of the valve cover.

Method used

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  • Bypass valve with cover skirt and exhaust gas turbocharger with such a bypass valve
  • Bypass valve with cover skirt and exhaust gas turbocharger with such a bypass valve
  • Bypass valve with cover skirt and exhaust gas turbocharger with such a bypass valve

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Embodiment Construction

[0035] Parts with the same function and designation are always identified with the same reference symbols in the figures.

[0036] figure 1 and 2 Used to illustrate the prior art, and in this case the opening description has already been given above.

[0037] image 3 An advantageous embodiment of the bypass valve according to the invention in the form of a pivoting flap valve in the closed state is shown in a simplified sectional illustration. In this case, the valve cover 55 rests with its closing surface 56 in a sealing manner on the valve seat surface 52 of the valve cover seat 51 . The valve seat axis 53 is perpendicular to the valve seat surface 52 and is shown with a dotted line. The valve cover 55 is arranged on the crank arm 60 and pivots by means of the crank arm about the crank axis of rotation 62 from the open state of the bypass valve to the closed position, wherein the valve cover 55 moves on a circular track about the crank axis of rotation 62 .

[0038] In...

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PUM

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Abstract

The invention relates to a bypass valve for an exhaust gas turbocharger, the bypass valve having a valve cover seat (51) and a valve cover (55) formed on the end of a bypass channel (50), wherein the valve cover (55) has a cover skirt (57) on the outer edge of its closing surface (56), which in the closed state of the bypass valve extends from the closing surface (56) mainly in the direction of the seat axis (53) for more than bonnet seat (51) and extends over at least a portion of the bonnet periphery (59) so that the cover skirt (57) at least partially surrounds the valve seat periphery (54a) of the bonnet seat (51) and in the overlapping region with The skirt height (58) is the magnitude that overlaps the bonnet seat.

Description

technical field [0001] The invention relates to a bypass valve for an exhaust gas turbocharger, in particular for an internal combustion engine, and an exhaust gas turbocharger, the bypass valve being designed as a cover valve with a valve cover seat and a valve cover interacting with the valve cover seat, The turbine housing and / or the compressor housing of the exhaust gas turbocharger has a bypass valve with a valve cover and a valve cover seat. Background technique [0002] Exhaust gas turbochargers are increasingly used for power boosting in internal combustion engines of motor vehicles. This is increasingly happening with the goal of reducing the structural size and weight of the internal combustion engine at the same or even increased power and at the same time reducing the consumption and thus the CO in view of increasingly stringent legal regulations for this 2 emission. The principle of action is this: the energy contained in the exhaust gas flow is used to increa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/18F16K25/00G05D7/06
CPCF16K1/2014F16K15/03F16K25/04F02B37/183Y02T10/12
Inventor M.保洛夫
Owner VTESCO TECH GMBH