Valve device for a motor vehicle

Patent metadata

Field	Value
Publication number	US-2016195044-A1
Application number	US-201314654322-A
Country	US
Kind code	A1
Filing date	Dec 5, 2013
Priority date	Dec 20, 2012
Publication date	Jul 7, 2016
Grant date	—

Abstract

A valve device for a motor vehicle includes: a housing; a flow duct situated in the housing; and a flap arranged in the flow duct to close off the flow duct, the flap having regions in which a shaft penetrating the flap is fastened. The shaft is rotatably mounted in the housing and a valve seat is arranged in the flow duct, the valve seat being in contact with the flap in the closed position thereof. At least one portion of the flow duct adjacent to the valve seat has a cross section smaller than the inside diameter of the valve seat.

First claim

1 - 8 . (canceled)

9 . A valve device for a motor vehicle, comprising:
a housing ( 1 ); a flow duct ( 2 ) situated in the housing ( 1 ); a flap ( 3 ) arranged in the flow duct ( 2 ) to close off the flow duct ( 2 ) in a closed position of the flap ( 3 ); a spindle ( 4 ) extending through the flap ( 3 ), the flap ( 3 ) having regions in which tie spindle ( 4 ) is fastened, the spindle ( 4 ) being mounted rotatably in the housing ( 1 ); and a valve seat ( 8 ) having an inner diameter, the valve seat ( 8 ) being arranged in the flow duct ( 2 ) and being in contact with the flap ( 3 ) when the flap ( 3 ) is in the closed position, wherein at least a section ( 9 , 10 ) of the flow duct ( 2 ) adjacent to the valve seat ( 8 ) has a cross section smaller than the inner diameter of the valve seat ( 8 ).

10 . The valve device as claimed in claim 9 , wherein the section ( 9 , 10 ) of the flow duct ( 2 ) with the smaller cross section is arranged downstream, with respect to the direction of flow, of the valve seat ( 8 ).

11 . The valve device as claimed in claim 9 , wherein the section ( 9 , 10 ) of the flow duct ( 2 ) with the smaller cross section is formed by an insert ( 11 ) arranged in the flow duct ( 2 ) and adjacent to the valve seat ( 8 ), wherein the insert ( 11 ) has a smaller cross section than the inner diameter of the valve seat ( 8 ).

12 . The valve device as claimed in claim 9 , wherein the section ( 9 , 10 ) of the flow duct ( 2 ) with the smaller cross section is formed by two inserts ( 11 , 12 ) arranged in the flow duct ( 2 ), wherein first and second respective inserts ( 11 , 12 ) are arranged one at each side of the valve seat ( 8 ), both the first and second respective inserts ( 11 , 12 ) having a smaller cross section than the inner diameter of the valve seat ( 8 ).

13 . The valve device as claimed in claim 12 , wherein the smaller cross section of at least one of the first and second respective inserts ( 11 , 12 ) or of the flow duct ( 9 ) widens continuously up to the inner diameter of the valve seat ( 8 ).

14 . The valve device as claimed in claim 12 , wherein the valve seat ( 8 ) and/or the first and second respective inserts ( 11 , 12 ) is/are screwed or pressed into the flow duct ( 2 ).

15 . The valve device as claimed in claim 12 , wherein the cross section ( 10 ) of at least one of the first and second respective inserts ( 11 , 12 ) merges continuously into the cross section of the flow duct ( 2 ).

16 . The valve device as claimed in claim 9 , wherein the cross section of the flow duct ( 2 ) widens in cross section downstream of the valve seat ( 8 ).

Assignees

• Continental Automotive Gmbh

Inventors

• Montigny Sybille
• Von Willich Joachim
• Kohlen Peter

Classifications

• F16K47/08

  for decreasing pressure {or noise level} and having a throttling member separate from the closure member {, e.g. screens, slots, labyrinths} · CPC title

• F16K27/0218

  Butterfly valves · CPC title

• F16K1/2261

  the sealing being arranged on the valve member · CPC title

• F02M26/70 Primary

  Flap valves; Rotary valves; Sliding valves; Resilient valves · CPC title

• F02M26/68

  Closing members; Valve seats; Flow passages · CPC title