Patent ID: 8635864
Filing Date: 2014-01-28
Classification: B01D,F01N

Abstract:
1. An exhaust gas purifying device, comprising: a first case housing a soot filter for purifying exhaust gas; a second case that houses an oxidizing catalyst and is fitted, in a separable manner, to an upstream side of the first case in an exhaust gas flowing direction; a third case that is fitted, in a separable manner, to a downstream side of the first case in the exhaust gas flowing direction, and is configured to be connected at its downstream side to an outlet pipe in the exhaust gas flowing direction, the exhaust gas passing through the second case and the third case; a fourth case that is provided with an inflow section into which the exhaust gas flows, the inflow section being configured to be connected to an exhaust pipe of an engine, wherein the second case is fitted, in a separable manner, to a downstream end of the fourth case in the exhaust gas flowing direction; a heat insulating ring placed between the first case and at least one of the second and third cases; and a detector that detects a pressure difference between an upstream side and a downstream side of the soot filter, wherein