Oil filter and cooler for internal combustion engine

摘要

A heat exchanger apparatus includes a heat exchanger constituted by a multiplicity of heat exchanger units laminated one upon another and a filter having first and second filter elements for removing any unnecessary substance mixed into a working fluid. A fixing member (bolt) is disposed such as to extent through the heat exchanger so that the heat exchanger and the filter are integrally secured to each other. The heat exchanger is provided therein with a communicating passage communicated with the upstream side of the first and second filter elements, a main flow passage communicated with the downstream side of the first filter element, and a subsidiary flow passage communicated with the downstream side of the second filter element.