序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 VEHICULAR EXHAUST RESONATOR WITH COOLING FEATURE US12200012 2008-08-28 US20090057056A1 2009-03-05 Fred Baumgartner
A vehicular exhaust resonator features an exhaust inlet conduit which narrows down in a manner such as to define a venturi effect region. Air entrainment apertures in the housing of the resonator provide fluid communication between outside cooling air and an air inlet chamber in the resonator. A further air inlet aperture in an outlet conduit section of the resonator is in fluid communication with the air inlet chamber. Due to the venturi effect inside the inlet conduit, a pressure drop is created to pull air from the outside into the air inlet chamber and then into an outlet conduit of the resonator for mixing with the exhaust gas to provide cooling thereof.
2 Exhaust gas muffler for a two-stroke engine US240818 1988-09-06 US4890690A 1990-01-02 Hartmut Fischer; Jurgen Grassmuck; Michael Wissmann; Albert Dreher
The invention is directed to an exhaust gas muffler for a two-cycle engine, especially for a handheld portable tool, such as a chain saw. In exhaust gas mufflers equipped with a catalyzer, the formation of flame from the fuel-containing exhaust gases exiting from the muffler must be prevented. These exhaust gases are intensely overheated because of the exothermal process in the catalyzer. The muffler according to the invention includes a catalyzer which establishes a connection between separate component chambers of the muffler housing. The muffler can be mounted directly on the motor outlet.
3 Catalytic method US08377861 1995-01-25 US06205777B1 2001-03-27 William C. Pfefferle
An emissions control system for rich-burn internal combustion engines, includes a reaction chamber for thermal oxidation of exhaust gas fuel values. A passive means utilizes exhaust flow energy for induction of air into engine exhaust gas, and a duct transfers the exhaust gas together with the inducted air into the reaction chamber for thermal oxidation. To achieve a high degree of efficiency the thermal oxidation is facilitated by through mixing of air and exhaust gas to insure gas phase thermal reaction.
4 Exhaust temperature control US083355 1993-06-28 US5421154A 1995-06-06 William C. Pfefferle; Dyland H. Hixon
An emissions control system for rich-burn internal combustion engines, said control system comprising:a. a reaction chamber for oxidation of exhaust gas fuel values,b. passive means to utilize reaction chamber effluent flow energy to mix cooling air into reaction chamber effluent to lower the temperature of said effluent.c. flame arrestor means to prevent ignition of flammable fuel-air mixtures external to the engine.
5 Exhaust configuration US245569 1988-09-19 US4926637A 1990-05-22 James Gassen
An exhaust configuration for a gasoline engine where the exhaust gas is merged with an air stream in a direction counter to the direction of flow of the air stream for reducing noise and for supercharging the engine and for reducing the amount of oil that may become entrained in the exhaust stream.
6 Vehicular exhaust resonator with cooling feature US12200012 2008-08-28 US07845465B2 2010-12-07 Fred Baumgartner
A vehicular exhaust resonator features an exhaust inlet conduit which narrows down in a manner such as to define a venturi effect region. Air entrainment apertures in the housing of the resonator provide fluid communication between outside cooling air and an air inlet chamber in the resonator. A further air inlet aperture in an outlet conduit section of the resonator is in fluid communication with the air inlet chamber. Due to the venturi effect inside the inlet conduit, a pressure drop is created to pull air from the outside into the air inlet chamber and then into an outlet conduit of the resonator for mixing with the exhaust gas to provide cooling thereof.
7 Muffler US10783666 2004-02-20 US07503427B2 2009-03-17 Youhei Toyoshima
A muffler is capable of sufficiently reducing flow noise, discharge noise, vehicle noise, and cabin noise, preventing a pressure loss, and improving output power. The muffler has a muffler body, an upstream pipe that opens in the muffler body, and a downstream pipe that opens in the muffler body. An opening is formed in a side wall of the downstream pipe in the muffler body. The opening consists of many small holes arranged in an elongated area extending in an axial direction of the downstream pipe.
8 Muffler US10783666 2004-02-20 US20040182643A1 2004-09-23 Youhei Toyoshima
A muffler is capable of sufficiently reducing flow noise, discharge noise, vehicle noise, and cabin noise, preventing a pressure loss, and improving output power. The muffler has a muffler body, an upstream pipe that opens in the muffler body, and a downstream pipe that opens in the muffler body. An opening is formed in a side wall of the downstream pipe in the muffler body. The opening consists of many small holes arranged in an elongated area extending in an axial direction of the downstream pipe.
9 2-cycle engine US966286 1992-10-26 US5239950A 1993-08-31 Masanori Takahashi
A number of embodiments of outboard motors embodying pressure scavenged 2-cycle internal combustion engines. In each embodiment, a plenum chamber serves the scavenge passages of the engine and the pressure relief for a scavenge pump is provided by a pressure relief valve in the plenum chamber so as to reduce the opening and closing of the pressure relief valve due to pulsations caused by the engine operation. In one embodiment, the pressure is relieved by discharging the air to the exhaust system for silencing and also for cooling the exhaust gases. In other embodiments, the air for pressure relief is discharged to the atmosphere.
10 CATALYTIC METHOD EP95944219 1995-12-21 EP0752057A4 1999-04-21 PFEFFERLE WILLIAM C
An emissions control system for rich-burn internal combustion engines, includes a reaction chamber (7) for thermal oxidation of exhaust gas fuel values. A passive means (5, 4) utilizes exhaust flow energy (2) for induction of air into engine exhaust gas, and a duct (3) transfers the exhaust gas together with the inducted air into the reaction chamber (7) for thermal oxidation. To achieve a high degree of efficiency the thermal oxidation is facilitated by thorough mixing of air and exhaust gas by recirculation means (9) to insure gas phase thermal reaction.
11 Silencer JP2003042392 2003-02-20 JP4166593B2 2008-10-15 洋平 豊島
12 Catalytic process JP52285896 1995-12-21 JPH09511044A 1997-11-04 プフェファーレ・ウイリアム・シー
(57)【要約】 濃縮燃焼エンジンの放出ガス制御系は、排気ガス燃料物を熱酸化させる反応室(7)を有する。 受動的手段(5,4)は空気をエンジンの排気ガスに導入するため排気流のエネルギ(2)を利用し、導管(3)は排気ガスを導入した空気と共に熱酸化用の反応室(7)に移す。 効率を高めるため、熱酸化は気相熱反応を保証する再循環手段(9)により空気と排気ガスを徹底的に混合して行われる。
13 Two-cycle engine JP31531991 1991-11-02 JPH05125948A 1993-05-21 TAKAHASHI MASAAKI
PURPOSE: To provide a two-cycle engine which can prevent increase in power loss while preventing lowering of output over the whole operational range and which can also prevent rise in intake air temperature. CONSTITUTION: A two-cycle engine is provided with a main scavenging port 44 and an auxiliary scavenging port both of which are open to a cylinder 12 and opened and closed by the reciprocating motion of a piston 22, a fresh air supply passage 37 communicated with a combustion chamber 28 via the scavenging ports, and a scavenging pump 34 connected to the upstream side of the fresh air supply passage and driven by a crankshaft 10. In the two-cycle engine, the fresh air supply passage 37 is provided with a relief valve 56; when pressure within the fresh air supply passage is raised above a predetermined value, intake air in the fresh air supply passage 37 is discharged to the outside via the relief valve 56. Thereby intake air to be fed into the combustion chamber is restrained below predetermined pressure and so air is not fed in excess into the combustion chamber, thus preventing nonconformity such as increase in power loss and rise in air temperature. COPYRIGHT: (C)1993,JPO&Japio
14 Aktoranordnung für aktive Abgasanlagen und Verfahren zum Betreiben derselben EP12194799.8 2012-11-29 EP2607640A1 2013-06-26 Drees, Rainer; Bichler, Hubert; Mayer, Christian; Mirlach, Robert; Rachor, Julius; Dr.Truman Sutanto, Pagra

Es wird eine Aktoranordnung für aktive Abgasanlagen zum Erzeugen eines Schallsignals (z.B. Anti-Schall) mit mindestens einem Aktor (28a) bereitgestellt, wobei die Aktoranordnung zumindest mit einem Verbindungsabschnitt (28b) gasführend mit mindestens einem Abgasstrang (22) der Abgasanlage verbindbar ist, und die Aktoranordnung eine Druckausgleichsanordnung (29) zum Zuführen von Fluid in den Verbindungsabschnitt umfasst. Das zugeführte Fluid sorgt für eine Belüftung und Kühlung der Aktoranordnung, verhindert ein Einströmen von heissem Abgas aus dem Abgasstrang und drückt dieses in Richtung des Abgasstrangs zurück.

Darüber hinaus werden eine entsprechend ausgestattete aktive Abgasanlage sowie ein entsprechendes Verfahren zum Betreiben der Aktoranordnung sowie ein Steuergerät hierfür vorgeschlagen.

15 Muffler EP04003868.9 2004-02-20 EP1450014A1 2004-08-25 Toyoshima, Youhei

A muffler is capable of sufficiently reducing flow noise, discharge noise, vehicle noise, and cabin noise, preventing a pressure loss, and improving output power. The muffler has a muffler body, an upstream pipe that opens in the muffler body, and a downstream pipe that opens in the muffler body. An opening is formed in a side wall of the downstream pipe in the muffler body. The opening consists of many small holes arranged in an elongated area extending in an axial direction of the downstream pipe.

16 Exhaust temperature control EP95108164.5 1995-05-29 EP0759501B1 1999-03-31 Pfefferle, William C.
17 For a vehicle equipped with a cooling function exhaust resonator JP2010522961 2008-08-28 JP2010538204A 2010-12-09 バウムガートナー,フレッド
車両用排気レゾネーターは、ベンチュリー効果領域を規定するように、先が細くなっている形状を有する排気ガスの吸気管を備えていることを特徴としている。 レゾネーターの筐体における空気取り入れ孔は、外部の冷却用空気とレゾネーター内部の吸気チャンバとの流動体通路を提供する。 吸気チャンバにおける流動体通路内に、レゾネーターの排気管部におけるさらなる吸気孔が形成される。 吸気管内部におけるベンチュリー効果によって、外部から吸気チャンバ内部に空気を吸い込むような圧低下が生じて、この空気は、排気ガスを冷却して混合するように、レゾネーターの排気管に引き込まれる。
18 Silencer JP2003042392 2003-02-20 JP2004251197A 2004-09-09 TOYOSHIMA YOHEI
PROBLEM TO BE SOLVED: To provide a silencer capable of suppressing vehicle noises and cabin noises by significantly reducing draft noise/discharging noise level, and capable of realizing minimum pressure loss and high output. SOLUTION: This silencer 1A is constructed by opening an upstream side pipe 7 toward the inside of the silencer body 2, opening a downstream side pipe 8, and forming an opening portion 10 at a side wall of the downstream side pipe 8. The opening portion 10 is constituted of a number of small holes 10a arranged the axial direction of the downstream side pipe 8. COPYRIGHT: (C)2004,JPO&NCIPI
19 Exhaust silencer of the two-stroke engine JP21861688 1988-09-02 JP2813351B2 1998-10-22 ドレーヤー アルバート; フィッシャー ハルトムート; ヴィスマン ミヒャエル; グラスムック ユルゲン
20 Exhaust gas muffler for two-cycle engine JP21861688 1988-09-02 JPH01110824A 1989-04-27 HARUTOMUUTO FUITSUSHIYAA; YURUGEN GURASUMUTSUKU; MIHIYAERU BUISUMAN; ARUBAATO DOREEYAA
PURPOSE: To promote catalyzer activation in starting by arranging a catalyzer spaced from a housing wall inside an exhaust gas muffler. CONSTITUTION: A housing 17 of an exhaust gas muffler 8 is formed by a housing portion 18 adjacent a cylinder 12 and a housing shell 19. A separate wall 25 is fixed inside the housing shell 19. A catalyzer 24 is supported in a through hole of the separate wall 25. The catalyzer 24 is spaced from the housing wall. Thus, as the catalyzer is insulated, the converting process starts immediately after start. Therefore, catalyzer activation can be promoted. COPYRIGHT: (C)1989,JPO
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