ENGINE SUCTION RATE CONTROLLER

• Main Authors: HIRAKATA, YOSHIAKI, IWAO, SUMINARI, AKIYAMA, HIROSHIGE
• Format: Patent
• Language: English; French; Japanese
• Published: 13.03.2003
• Edition: 7
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

An engine suction rate controller comprising a control block (28) joined to a throttle body (17), the control block having a coupler (80) integrally formed therewith, a bypass valve (35), sensors (64, 73, 76), an actuator (39), the control block (28) having an electronic control unit (84) disposed on the outer end surface thereof, a cap (101) attached to the control block (28) to cover the electronic control unit (84), the cap (101) having a synthetic resin (103) potted therein to wrap the electronic control unit (84), the attaching portion of the cap (101) being sealed. This makes it possible for a functional test of the bypass control system to be conducted before it is attached to the throttle body, enhancing productivity. An engine suction rate controller comprising a control block 28 joined to a throttle body 17, the control block having a coupler 80 integrally formed therewith, a bypass valve 35, sensors 64, 73, 76, an actuator 39, the control block 28 having an electronic control unit 84 disposed on the outer end surface thereof, a cap 101 attached to the control block 28 to cover the electronic control unit 84, the cap 101 having a synthetic resin 103 potted therein to wrap the electronic control unit 84, the attaching portion of the cap 101 being sealed. This makes it possible for a functional test of the bypass control system to be conducted before it is attached to the throttle body, enhancing productivity. Cette invention se rapporte à un régulateur de régime d'aspiration de moteur, comprenant un bloc de commande, qui est joint à un corps d'étrangleur (17) et avec lequel un coupleur (80) est formé solidaire, une soupape de dérivation (35), des capteurs (64, 73, 76) et un actuateur (39). Le bloc de commande (28) comporte une unité de commande électronique (84) disposée sur sa surface terminale externe. Un couvercle (101) est fixé au bloc de commande (28) pour recouvrir l'unité de commande électronique (84) et une résine synthétique (103) est encapsulée dans ce couvercle (101) de façon à envelopper l'unité de commande électronique (84), la partie de fixation du couvercle (101) étant fermée hermétiquement. Cette structure permet d'effectuer un test fonctionnel du système de commande de dérivation, avant que celui-ci soit fixé au corps de l'étrangleur, améliorant ainsi la productivité.