Abstract: The present invention provides an engine exhaust gas purification device comprising a filter B provided in an exhaust passage (10) of an engine (1) for trapping particulate matter contained in the exhaust gas, a catalyst A for regenerating the filter B by burning the particulate matter trapped in the filter B, an EGR valve (8) provided in an EGR passage (7) linking the intake side and exhaust side of the engine 1, an injector (2) for injecting fuel into a cylinder, and control unit (20) for controlling the injector (2) and EGR valve (8). During regeneration of the filter B, the control unit (20) close the EGR valve (8) when fuel injection from the injector (2) is controlled to supply unburned fuel components to the catalyst A, and open the EGR valve (8) when no fuel is injected from the injector (2) upon a request for speed reduction or the like. In so doing, residual unburned fuel components in the EGR passage (7) are scavenged by air.

Abstract: The present invention provides an engine exhaust gas purification device comprising a filter B provided in an exhaust passage (10) of an engine (1) for trapping particulate matter contained in the exhaust gas, a catalyst A for regenerating the filter B by burning the particulate matter trapped in the filter B, an EGR valve (8) provided in an EGR passage (7) linking the intake side and exhaust side of the engine 1, an injector (2) for injecting fuel into a cylinder, and control unit (20) for controlling the injector (2) and EGR valve (8). During regeneration of the filter B, the control unit (20) close the EGR valve (8) when fuel injection from the injector (2) is controlled to supply unburned fuel components to the catalyst A, and open the EGR valve (8) when no fuel is injected from the injector (2) upon a request for speed reduction or the like. In so doing, residual unburned fuel components in the EGR passage (7) are scavenged by air.

Abstract: A seat is mounted on an engine covering panel to form a clearance between a seat portion of the seat and the panel. The clearance is fluidly connected to a portion where an air flow produced by an engine cooling fan is present, thereby causing generation of air flow in the clearance to cool the seat portion.

Abstract: A letter segmenting apparatus for the optical character recognition is disclosed. In response to a binary pattern of signals for a letter group, a proportioning circuit predicts possible locations of dividing lines between the letters. A binary signal processor processes the binary pattern to find correct dividing lines near the predicted locations. When this processor fails to find a correct dividing line, a multi-level signal processor finds the correct dividing line near the predicted location.

Abstract: A character recognizing system for recognizing an input pattern of a character by comparing with a plurality of standard patterns is disclosed. The standard patterns are classified into a plurality of groups, and each group has a common standard pattern and a plurality of non-common standard patterns. The non-common standard patterns represent differences between the standard patterns and the common standard pattern. An input pattern read out by scanning a printed character is first compared with the common standard pattern of any group. When the difference between the input pattern and the common standard pattern is less than a predetermined value, the input pattern is compared with the non-common standard patterns in the same group.