JPS5968132U - Exhaust turbocharged 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図は従来の排気ターボ過給機関の構成を示す説明図
、第２図は第１図の機関の性能を示す線図、第３図は改
善された従来の排気ターボ過給機関の構成を示す説明図
、第４図は第３図の機関の性能を示す線図、第５図は本
考案による第１実施例の装置を設けた機関を示す説明図
、第６図は同じく第２実施例の装置を設けた機関を示す
説明図、第７図は同じく第３実施例の装置を設けた機関
を示す説明図、第８図は同じく第４実施例の装置を設け
た機関を示す説、明図、第９図は排気バイパス弁または
給気バイパス弁を示す断面図、第１０図は給、排気の圧
力変化を示す線図、第１１図はシリンダ内最高圧力、排
気ターボ過給機の回転数及び排気温度を示す線図である
。 １２・・・排気管、２０．２２・・・排気タービン、２
１、　２３・・・ブロワ、２４・・・排気仕切弁、２５
・・・給気仕切弁、２６ａ・・・排気バイパス弁、２６
ｂ・・・給気バイパス弁、２７・・・調整圧力取出し管
、２９・・・排気圧力取出し管。 ８１□ ｌ−トロ ｌ　　　　　　　　　　　　　　　　　−Ｎ２　　　　
　　Ｎｌ ２５２７ ン　　ｌ ）　　。 ／７　　−７６図 １７′７？７図 、　−」ＬＩ ｌ　　− −Ｎ２ １　　　　　　　　、／＝　　　Ｉ　　　　　　　　　
　　　ＩＮ２　　　　　　　　Ｎ１Figure 1 is an explanatory diagram showing the configuration of a conventional exhaust turbocharged engine, Figure 2 is a diagram showing the performance of the engine in Figure 1, and Figure 3 is an improved configuration of a conventional exhaust turbocharged engine. FIG. 4 is an explanatory diagram showing the performance of the engine shown in FIG. 3, FIG. An explanatory diagram showing an engine equipped with the device of the embodiment, FIG. 7 is an explanatory diagram showing an engine equipped with the device of the third embodiment, and FIG. 8 shows an engine equipped with the device of the fourth embodiment. Figure 9 is a sectional view showing the exhaust bypass valve or air supply bypass valve, Figure 10 is a line diagram showing supply and exhaust pressure changes, Figure 11 is the maximum cylinder pressure and exhaust turbo supercharging. FIG. 2 is a diagram showing the rotation speed and exhaust temperature of the machine. 12...Exhaust pipe, 20.22...Exhaust turbine, 2
1, 23...Blower, 24...Exhaust gate valve, 25
...Air supply gate valve, 26a...Exhaust bypass valve, 26
b...Air supply bypass valve, 27...Adjustment pressure take-off pipe, 29...Exhaust pressure take-off pipe. 81□ l-Toro l-N2
Nl 2527 Nl). /7 -76Figure 17'7?7 figure, -''LI l - -N2 1, /= I
IN2 N1

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数台の排気ターボ過給機と、同過給機のうち一台を除
く他の過給機にはタービン入口に排気仕切弁とブロア出
口に給気仕切弁とを有し上記過給機の作動台数を可変と
した排気ターボ過給機関において、上記排気仕切弁が設
けられていない過給機のタービン入口側に設けられ流入
排気の一部を外部へ放出する排気バイパス弁または上記
給気仕切弁が設けられていない過給機のブロワ出口側に
設けられ吐出給気の一部を外部へ放出する給気バイパス
弁、上記排気または給気バイパス弁と機関の排気管とを
連通し排気圧力によりばねで設定された開弁圧に抗して
上記バイパス弁を開弁させる排気圧力取出し管、上記排
気仕切弁が設けられた過給機の同排気仕切弁よりもター
ビン入口側と上記排気及び給気バイパス弁のいずれか一
方とを連通しまたは上記給気仕切弁が設けられた過給機
の同給気仕切弁よりもブロワ出口側と上記排気及び給気
バイパス弁のいずれか一方とを連通し上記開弁圧を調整
する調整圧力取出し管を備えたことを特徴とする排気タ
ーボ過給機関。A plurality of exhaust turbo superchargers, and all but one of the superchargers have an exhaust gate valve at the turbine inlet and an intake gate valve at the blower outlet. In an exhaust turbocharged engine in which the number of operating units is variable, an exhaust bypass valve or the above-mentioned air supply partition is provided on the turbine inlet side of a turbocharger where the above-mentioned exhaust gate valve is not provided and discharges a part of the incoming exhaust gas to the outside. A supply air bypass valve is installed on the blower outlet side of a supercharger where no valve is provided and releases a portion of the discharged supply air to the outside, and the above exhaust or supply air bypass valve is connected to the engine exhaust pipe to reduce the exhaust pressure. an exhaust pressure take-off pipe that opens the bypass valve against a valve opening pressure set by a spring; Either one of the supply air bypass valves is in communication with the blower outlet side of the supply air gate valve of the turbocharger provided with the supply air gate valve, and either one of the exhaust air and supply air bypass valves is connected to the An exhaust turbocharged engine characterized by comprising an adjustment pressure take-off pipe that communicates with the valve opening pressure and adjusts the valve opening pressure.