HEAT EXCHANGER

• Main Authors: FUJIKURA KEISUKE, SEIKE TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 20.06.2019
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

To provide a heat exchanger which can automatically discharge condensed water without leaking a gas as a cooling object.SOLUTION: In a structure for opening and closing a drain hole 43 of an intercooler by a valve 5, when a force obtained by subtracting a total valve-descending force from a total valve-ascending force when the valve 5 is immersed with water up to a prescribed height is set as an immersion-time total external force, and a value obtained by dividing the immersion-time total external force by the density of a valve material and gravity acceleration is set as a valve float critical volume, a capacity of an air chamber 53 formed at the valve 5 is set larger than a value obtained by subtracting the valve float critical volume from a contour volume of the valve 5. Then, a length dimension of a leg part 52 of the valve 5 in a vertical direction is set longer than the prescribed height. By this constitution, condensed water stored in a downstream-side tank part 4 can be automatically discharged without leaking intake air while preventing the come-off of the leg part 52 from the drain hole 43.SELECTED DRAWING: Figure 4 【課題】冷却対象としての気体の漏出を生じさせることなく、凝縮水の排出を自動的に行うことを可能にする熱交換装置を提供する。【解決手段】インタクーラの排水孔４３をバルブ５によって開閉する構造に対し、バルブ５が所定高さまで浸水した場合における総和バルブ上昇力から総和バルブ下降力を減じた力を浸水時総外力とし、該浸水時総外力をバルブ材質の密度と重力加速度とによって除した値をバルブ浮上臨界体積とした場合に、バルブ５に備えられる空気室５３の容積を、バルブ５の外形体積からバルブ浮上臨界体積を減じた値よりも大きく設定する。また、バルブ５の脚部５２の上下方向の長さ寸法を前記所定高さよりも長く設定する。これにより、脚部５２が排水孔４３から抜け出ることを防止しながら、下流側タンク部４に貯留された凝縮水の排出を、吸気の漏出を生じさせることなく自動的に行うことが可能になる。【選択図】図４