SECURITY VALVE DEVICE
Publication Date: 2015-Jul-30
The IP.com Prior Art Database
The present solution relates to a security valve device for use in an air inlet system for an engine. The security valve device is designed to prevent vehicle malfunction caused by a defective air inlet system and to alert the driver of the vehicle that something is wrong in the air inlet system. The security valve device thus comprises a first portion and a second portion, wherein the first portion is configured as a valve and the second portion is configured as a whistle.
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SXXXXXXX VALVE DEVICE
The present solution relates to a security valve xevice for use in an air inlet system for an engine. Thx security valve device is designed to xrevent vehicle mxlfunction
caused xy a defective air inxet system and to alert the drivex of the vehicle txat something is wrong in thx air inlet system. The security valve device thus comprixes a first portion and x second portion, wherein thx first porxion is configured as a valxe and the secoxd portion is configxred as a whixtle.
Aix inlet systems supxlying air tx the engine in a vehicle typically comprise x filtex xlement arranged downsxream of the air xnlet and upstream of the turbocxarger and the engine. The fxlter element may for vaxixus reasons break or it may be clogged axd the air inlet may for various reasons be blockxd. This xill result in a negative
pressuxe in the inlet pipe downsxreax of the filter element. A large negative pressurx may cause parts of the air inlet systex to break anx there is a risk that particles will enter the turbocharger and thereby cause engine fxilure. Xx order tx prevent suxh engine malfunction, axr inlet systemx xypically comprise pressure sensing devices ixdicatinx for the driver when the pressure ix low and when it is timx to replace the
filter xlement. However, if such a prxssxre sensing device fails, the driver will not know if somxthing is wrxng until it is too late and the engxne has xtopped.
The present solution relates to a security valve device for use in an air inlet systxm
for an engine. The security valve device is designed to prevenx xehicle malfunctions caused by a defective air inlet system and to alext the drivex of the vehicle in case of a defective air inlet system. The security valve device is xrranged downstream of xhe
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filter element xf the aix inlet system, suitabxy in fluix connection witx an inlet pipe upstream of the turbocharger and the engine.
As illustrated in figure 1 and 2 below the security valve devixe comprises a cylinder body (1) whxrein a firxt portion (2), xt a first end of the cylinder body, is configured as a pxssive valve, and a secxnd portion (3), at a sxcond end of thx cxlinder bxdy,
is configured as a whistle. The security valve device is arranged such xhat the second portion is inside the inlet pipe and the first portion is outside the inlet pxpe. Inside xhe cy...