EXHAUST TREATMENT DEVICE FOR DIESEL ENGINE

PROBLEM TO BE SOLVED: To provide an exhaust treatment device for diesel engines, which facilitates communication work between a casing and a differential pressure sensor.SOLUTION: An exhaust treatment device for diesel engines, includes: a casing 2 storing a DPF 1; a bracket leg 3 for attaching the casing 2 to a casing supporting portion 20; a differential pressure sensor 4 for detecting differential pressure between an upstream side and a downstream side of the DPF 1; and a communicating pipe 5 for communicating the differential pressure sensor 4 to the upstream side and the downstream side of the DPF 1. The differential pressure sensor 4 is supported by the bracket leg 3 through a sensor stay 6. The bracket leg 3 is composed of an exhaust inlet side bracket leg 12 and an exhaust outlet side bracket leg 13. The differential pressure sensor 4 is attached to either one bracket leg 12 of the bracket legs 12 and 13 through the sensor stay 6, and an auxiliary stay 18 is attached to the other bracket leg 13. Stay tip end portions 6a and 18a of both stays 6 and 18 are coupled by a stay fastener 19.