11/18/2003

United States Patent  5,713,200  
Baets ,   et al.  February 3, 1998  

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Exhaust system for a turbocharged internal combustion engine 


Abstract
A simple exhaust system is disclosed with improved operational
reliability and an increased service life for a turbocharged internal
combustion engine, in which system both the advantages of shock-wave
charging and those of pulse-converter charging are used, depending on
the operating state of the internal combustion engine. These advantages
are achieved by virtue of the fact that extension pieces (12, 13) are
formed for the shock pipes (6, 7) and are arranged upstream of the
connection line (8, 9) furthest away from the exhaust turbine (5). Each
shock pipe (6, 7) is connected to a corresponding extension piece (12,
13). The interconnection conduit/s (14) is/are formed between the
extension pieces (12, 13). Each interconnection conduit (14) has a
cross-sectional constriction (15). 


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Inventors:  Baets; Jozef (Baden, CH); Codan; Ennio (Hausen, CH); Mathey;
Christoph (Fislisbach, CH)  
Assignee:  Asea Brown Boveri AG (Baden, CH)  


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United States Patent  5,816,044  
Biggs  October 6, 1998  

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Header assembly for internal combustion engines 


Abstract
An improved header assembly for use in V-8 engines. In engines having
eight cylinders, performance can be unexpectedly improved by utilizing
an improved header assembly whereby the exhaust gas from each of
cylinders 4 and 7 is routed by means of a by-pass tube to a specific
area in a second stage collector while the exhaust gas from the
remainder of the cylinders is routed to a first stage collector. Such an
arrangement of tubes routing exhaust gas into first and second stage
collectors creates smooth, non-turbulent exhaust gas flow through the
collector resulting in greater engine horsepower and torque. 


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Inventors:  Biggs; Gary L. (8661 N. 64th Pl., Paradise Valley, AZ 85253)
Appl. No.:  939018 
Filed:  September 26, 1997 


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Need to read down on summary page where he describes the use of a pulse
converter.

United States Patent  5,819,693  
Curtil  October 13, 1998  

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Method for improving the operation of an air-scavenged supercharged heat
engine, and heat engine therefor 


Abstract
A method wherein a number of cylinders (2, 3; 1, 4) are grouped on a
same exhaust gas manifold (8, 10) such that the pressure in the exhaust
pipe (1e . . . 4e) undergoes time-dependent fluctuations of substantial
amplitudes, and the exhaust valve (6) of a cylinder (1) is opened during
induction or filling thereof (i.e. adjacent to the bottom dead center)
so that, in a given engine speed range, a phase (28) of low
instantaneous exhaust pressure prevailing in the exhaust pipe enables
the inlet pipe (1a)/cylinder (1)/exhaust pipe (1e) to be scavenged while
the inlet valve (5) and the exhaust valve (6) are simultaneously open.
The phase (29) of high instantaneous exhaust pressure, caused by another
cylinder, after the inlet valve (5) has closed and while the exhaust
valve (6) is still open, is used for post-charging the cylinder (1) with
air (A) previously stored in the exhaust pipe (1e). The size of the
turbine (T) is selected so that there is virtually no post-charging of
the cylinder (1) with exhaust gases at engine speeds above said given
engine speed range. 


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Inventors:  Curtil; Remi (8, rue Nicolas-Chuquet, F-75017 Paris, FR)  
Appl. No.:  640736 
Filed:  May 6, 1996 





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United States Patent  6,279,391  
Kramer ,   et al.  August 28, 2001  

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Electrical engine firing pulse converter 


Abstract
Systems are provided which retard rotation of a driveline at times
associated with an engine firing pulse from an engine driving the
driveline to reduce torque peaks. In one system, a control monitors
rotation of a drive shaft, to provide an indication of when an engine
firing pulse should occur. The control selectively closes a switch to
power a coil such that the coil retards rotation of the driveline, and
generates electricity for use elsewhere. In a second embodiment,
circumferentially spaced magnets are mounted on a driveline and move
past a coil at a selected circumferential location. The coil resists the
rotation of the shaft, retarding torque peaks. The embodiments thus
reduce or eliminate imbalances in rotation of the shaft due to engine
firing pulses. 


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Inventors:  Kramer; Dennis A. (Troy, MI); Brissette; Ronald N. (Lake
Orion, MI); Keeney; Christopher S. (Troy, MI); McKenzie; Jack R.
(Hendersonville, NC); Mueller; Brian J. (Lake Orion, MI); Bell; Dale
(Ortonville, MI)  
Assignee:  Meritor Heavy Vehicle Systems, LLC (Troy, MI)  
Appl. No.:  427472 
Filed:  October 26, 1999