Intake passage of internal combustion engine with supercharger

Abstract

Abstract PURPOSE:To adjust intake temperature at all ranges without generating a pressure loss at an intake side by branching an intake passage, arranging a cooler at one of branch passages, and arranging opening/closing valves which interlock mutually at both the branch passages. CONSTITUTION:Intake passage 4 of an engine E is branched into branch passages 41, 42, and opening/closing valves 1A, 1B are arranged respectively, and they are integrally opened and closed by an interlocking mechanism 2. The mechanism 2 is driving controlled by a control circuit 6 via an actuator 61 based on detection signals from intake temperature sensor 63 arranged near an intake manihold E1 of the engine E and the like. The opening/closing valves 1A, 1B are opened and closed relatively to vary a mixed quantity of intake air which passed through a cooler 5 and which is not passed therethrough thereby adjusting intake temperature. The sum of opening areas at the opening/ closing valves 1A, 1B is always maintained 100%, and a pressure loss at the intake side is prevented.

Inventors

• 👤 Hiroyuki Ando
• 👤 裕之 安藤
• 👤 Morinaga Okada
• 👤 岡田　守永

Bibliographic Details