INTAKE SYSTEM

• Main Author: NAKAMURA TAKEHIDE
• Format: Patent
• Language: English; Japanese
• Published: 31.05.2018
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

PROBLEM TO BE SOLVED: To provide a technique for suppressing a variation in the flow amount of gas to be supplied from an exhaust recirculation device to an intake passage with gas supplied from a purge supply device to the intake passage.SOLUTION: An intake system includes the purge supply device including a purge passage connected to the intake passage of an internal combustion engine for a vehicle, for supplying evaporated fuel from a fuel tank via the purge passage to the intake passage, the exhaust recirculation device including a circulation passage connected between a connection position of the intake passage to the purge passage and a throttle valve, for supplying part of exhaust gas from the internal combustion engine via the circulation passage to the intake passage, and a pressure regulating part arranged between the connection position of the intake passage to the purge passage and a connection position of the intake passage to the circulation passage for regulating a pressure in the connection position of the intake passage to the circulation passage.SELECTED DRAWING: Figure 1 【課題】 パージ供給装置から吸気経路に供給される気体によって、排気再循環装置から吸気経路に供給される気体流量が変動することを抑制する技術を提供する。【解決手段】 車両の内燃機関の吸気経路に接続されるパージ経路を備え、燃料タンク内の蒸発燃料を、パージ経路を介して吸気経路に供給するパージ供給装置と、吸気経路のパージ経路との接続位置とスロットルバルブとの間に接続される循環経路を備え、内燃機関の排気ガスの一部を、循環経路を介して吸気経路に供給する排気再循環装置と、吸気経路のパージ経路との接続位置と、吸気経路の循環経路との接続位置と、の間に配置され、前記吸気経路の前記循環経路との前記接続位置における圧力を調整する圧力調整部と、を備える吸気システム。【選択図】 図１