JPS6132527U - supercharged engine - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例を示す全体概略図、第２図は第
１図の要部の詳細図である。 １・・・エンジン、２・・・吸気通路、３・・・排気通
路、４・・・圧力面過給機、６・・・吸気導入口、７・
・・吸気吐出口、８・・・排気導入口、９・・・排気吐
出口、１５・・・吸気バイパス通路、１６・・・吸気バ
イパス弁、１７・・・排気バイパス通路、１８・・・排
気バイパス弁、１９，２０・・・遮断弁、２１・・・回
転数検出手段、２２・・・制御手段。FIG. 1 is an overall schematic diagram showing an embodiment of the present invention, and FIG. 2 is a detailed diagram of the main part of FIG. 1. DESCRIPTION OF SYMBOLS 1... Engine, 2... Intake passage, 3... Exhaust passage, 4... Pressure surface supercharger, 6... Intake inlet, 7...
...Intake discharge port, 8...Exhaust inlet, 9...Exhaust discharge port, 15...Intake bypass passage, 16...Intake bypass valve, 17...Exhaust bypass passage, 18... Exhaust bypass valve, 19, 20... Shutoff valve, 21... Rotation speed detection means, 22... Control means.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ケース内に回転可能に支持され、多数の小室を形成する
多数の隔壁が放射状に配設されたロータと、該ロータの
一端側のケースに形成された吸気導入口および吸気出口
並びに上記ロータの他端側のケースに形成された排気導
入口および排気吐出口とを有し、上記ロータの回転に伴
い排気の圧力波エネルギーを吸気に伝達して吸気の過給
を行う圧力波過給機を備えた過給機付エンジンにおいて
、上記吸気導入口上流の吸気通路と上記吸気吐出口下流
の吸気通路とを上記過給機をバイパスして連通ずる吸気
バイパス通路と、該吸気バイパス通路を開閉する吸気バ
イパス弁と、上記排気導入口上流の排気通路と上記排気
吐出口下流の排気通路とを上記過給機をバイパスして連
通ずる排気バイパス通路と、該排気バイパス通路を開閉
する排気バイパス弁と、上記過給機を介しての吸気通路
と排気通路との連通を遮断する遮断弁と、上記ロータの
回転数に関連する信号を検出する回転数検出手段と、該
回転数検出手段の信号を受け、ロータの回転数が設定値
以下のとき上記吸気バイパス弁および排気バイパス弁を
開くとともに上記遮断弁を閉じる制御手段とを設けたこ
とを特徴とする過給機付エンジン。A rotor that is rotatably supported within a case and has a number of partition walls radially arranged to form a number of small chambers, an intake inlet and an intake outlet formed in the case at one end of the rotor, and other parts of the rotor. A pressure wave supercharger is provided, which has an exhaust inlet port and an exhaust discharge port formed in the case on the end side, and supercharges the intake air by transmitting the pressure wave energy of the exhaust gas to the intake air as the rotor rotates. In a supercharged engine, an intake bypass passage connects an intake passage upstream of the intake inlet and an intake passage downstream of the intake discharge port by bypassing the supercharger, and an intake passage that opens and closes the intake bypass passage. a bypass valve, an exhaust bypass passage that connects an exhaust passage upstream of the exhaust inlet and an exhaust passage downstream of the exhaust discharge port by bypassing the supercharger, and an exhaust bypass valve that opens and closes the exhaust bypass passage; a shutoff valve that cuts off communication between the intake passage and the exhaust passage through the supercharger; a rotation speed detection means that detects a signal related to the rotation speed of the rotor; and a rotation speed detection means that receives a signal from the rotation speed detection means. . A supercharged engine, comprising control means that opens the intake bypass valve and the exhaust bypass valve and closes the cutoff valve when the rotational speed of the rotor is below a set value.