Patent ID: 7922004

Claim:
A diesel filter comprising: a case including an opening that is upwardly opened; a cap detachably attached to the opening of the case for closing the opening; and a filter member detachably housed in the case, the filter member including an element and an element-holding member for holding an upper part of the element, wherein: in a state where the filter member is housed in the case, a water reservoir is formed in the case below the filter member, and a passage is formed between an inner peripheral surface of the case and an outer peripheral surface of the element so as to introduce fuel that has been introduced to a portion above the element-holding member into the water reservoir, the element-holding member has an opening for allowing the fuel to flow out from the element, the opening being in communication with a fuel outlet port formed in the cap, wherein the element-holding member holds the upper part of the element such that a space is maintained above the element between a top surface of the element and a bottom surface of the element-holding member, and the element-holding member includes a flange which is provided at an outer periphery of the element-holding member and which includes openings through which the fuel flows, the flange is held by the cap and the case in a state where the flange of the element-holding member is placed on a top surface of a middle stepped portion of the case, the cap is placed on a top surface of an upper stepped portion of the case, and the opening of the case is closed by the cap, and a sealing member is placed in direct contact with the middle stepped portion and is sandwiched between the middle stepped portion and the cap.