Patent ID: 8727385

Claim:
A gas distribution unit including an integral or unitary block body made of rigid synthetic resin and to be fixed in or to a case of an exhaust gas measuring apparatus, the block body comprising: an L-shaped intake passage having a first end extending up from a top surface of the block body and disposed to be connected to an intake pipe on the case and a second end extending from a front surface of the block body and disposed to be connected to an intake connecting portion on a pump in the case; an L-shaped exhaust passage having a first end open at a bottom surface of the block body and disposed to be connected to an exhaust pipe on the case and a second end projecting forward from a front surface of the block body and disposed to be connected to an exhaust connecting portion on the pump; and an L-shaped air passage having a first end projecting from the top surface of the block body and disposed to be connected to a pipe for a measuring device provided on the case and a second end projecting from the front surface of the block body and disposed to be connected to an intake connecting portion provided on the measuring device in the case.