Patent ID: 9745885
Date: 2017-08-29
CPC Classifications: F01N,Y10T

Claim:
1. A modular exhaust manifold of a motor vehicle comprising: multiple adjoining single-wall manifold pipe modules, with at least one engine flange, via which multiple inlet connecting pieces of the manifold pipe modules can be connected to a cylinder head of the motor vehicle, wherein at least one manifold pipe module configured as a collector pipe module and having a contact flange is provided, via which manifold pipe module the exhaust manifold can be connected to an exhaust system of the motor vehicle, wherein each of the manifold pipe modules has a cylindrical overlapping contour of a length (a) that ensures a telescoping of two adjacent manifold pipe modules at a time to an insertion depth (t) for a purpose of coupling and welding afterwards, wherein at least two manifold pipe modules are identical in shape, wherein at least one of two adjacent manifold pipe modules of the identical shape has a diameter of the cylindrical overlapping contour that is a) tapered with respect to a non-overlapping contour portion of the other adjacent manifold pipe module of identical shape or b) expanded with respect to the non-overlapping contour portion of the other adjacent manifold pipe module of identical shape, wherein each of the manifold pipe modules are made of sheet metal and have only one inlet connecting piece at a time, wherein formation of the length (a) of the overlapping contour allows for a variation of the insertion depth (t) of at least 5 mm to 100 mm for adapting to different cylinder head architectures, wherein the insertion depth (t) is fixed by welding one of the manifold pipe modules to the manifold pipe module inserted therein.