Matches 51 - 100 out of 193 < 1 2 3 4 >
Match Document Document Title
6609366 Branch pipes for an exhaust manifold and method of manufacturing the same  
Downstream fitting parts of exhaust manifold branch pipes which fit into a manifold container each has a sector or fan-like cross section which is formed so that the cross-section area of the...
6581376 Compact tuned exhaust system for aircraft with reciprocating engines  
A tuned exhaust system for a multi-cylinder, reciprocating, internal combustion engine is disclosed. Each exhaust tube has approximately the same overall length resulting in a predetermined...
6581377 Carburization of vehicle manifold flanges to prevent corrosion  
An exhaust manifold for a vehicle engine and a manufacturing process to prevent corrosion of the manifold during shipping and storage. The manifold includes a manifold body having a plurality of...
6564767 Method for tuning internal combustion engine manifolds  
A method for tuning input/exhaust primaries in a multi-chamber spark ignition internal combustion engine. This method improves engine performance by correlating the timing of wave pulses in the...
6467260 Gas flow headers for internal combustion engines  
An exhaust header system for an internal combustion engine having improved exhaust gas flow characteristics. Primary pipes extend from openings in a flange bolted to the engines exhaust ports. The...
6463641 Motorcycle exhaust system  
A method of manufacturing a exhaust system for an internal combustion engine having two banks of cylinders by which pulses of exhaust gas are alternately directed to a crossfire assembly. The...
6454622 Exhaust system for 4-cycle engine of small watercraft  
An internal combustion engine, which can be disposed in a water vehicle, includes an exhaust system having features improving the performance, ease of manufacturing, and/or the water preclusive...
6425243 Hybrid exhaust manifold for combustion engines  
An exhaust manifold 10 having a body 12 and a plurality of flanges 14-24 . The body 12 is separately fabricated apart from flanges 14-24 . The flanges 14-24 are later joined to the body...
6415747 Two stroke, multiple cylinder engine for small vehicle  
An improved two stroke, multiple cylinder engine having combustion chambers and a single exhaust conduit for discharging exhaust gasses from the combustion chambers. In accordance with one feature...
6381956 Exhaust system tuned for performance with shared wall  
An exhaust pipe for an internal combustion engine has non-circular passages that extend from the engine exhaust port to the atmosphere. The performance of the engine is not impaired by the...
6350166 Outboard engine with resonance-avoiding exhaust housing  
A propulsion system for a boat has a powerhead or a motor with an exhaust port for exhaust gases. The exhaust gases are exhausted through the propeller hub via an exhaust housing. The exhaust...
6338660 Exhaust system for an outboard motor  
An exhaust system for an outboard motor with a four-stroke engine having a cylinder block including a plurality of cylinders. The cylinders are arranged vertically so that a crankshaft is...
6332314 Catalyzer arrangement in exhaust system of multi-cylinder internal combustion engine  
In a catalyzer arrangement in an exhaust system of a multi-cylinder internal combustion engine, each of exhaust pipes connected with exhaust ports of the engine has a first exhaust pipe section...
6321532 Multiple tract exhaust manifold/header  
An exhaust system which unexpectedly increases engine performance significantly contains multiple tracts for exhaust gases to travel within upon exiting an internal combustion engine. The multiple...
6264571 Dynamically balanced modular putter with a sliding hosel  
The present invention teaches a dynamically balanced putter with a sliding hosel to ensure that the center of mass of the putter lies on the axis defined by the putter shaft. The putter head...
6209318 Exhaust gas system of a multi-cylinder internal-combustion engine  
An exhaust gas system of a multi-cylinder internal-combustion engine has two groups of cylinders and one exhaust pipe system respectively and has a connection pipe between the exhaust pipe systems...
6205778 Exhaust pipe assembly for multi-cylinder internal combustion engine  
An exhaust pipe assembly for a multi-cylinder internal combustion engine is made up of a plurality of exhaust pipes made of steel whose upstream ends are connected to a flange provided for...
6199376 Extension of exhaust manifold conduit into exhaust pipe  
An exhaust manifold for an internal combustion engine includes a set of exhaust manifold conduits. Pairs of the exhaust manifold conduits converge and are joined at their downstream portions. The...
6167700 Exhaust system for an internal combustion engine  
An exhaust system for an internal combustion engine. A plenum chamber has two ports, one which is connected to a header tube for conducting a stream of exhaust gas and another which is connected to...
6151892 Internal combustion engine with programmed water injection into its exhaust system  
An exhaust system for an internal combustion engine used in a marine propulsion system is provided with a water injection system by which water can be injected into the exhaust system. An engine...
6038855 Collector device for the primary pipes of an exhaust manifold  
A collector is disclosed for the primary pipes of an exhaust manifold in an internal combustion engine. The collector includes a common cavity and a plurality of primary pipes having a first...
5862662 Engine exhaust system including internal expansion chambers around the exhaust branch pipes  
A snowmobile having a lightweight fabricated frame assembly. The frame assembly includes a number of reinforcing elements, some of which comprise heat exchangers for the liquid cooling system of...
5860278 Apparatus and method for providing a compact low pressure drop exhaust manifold  
An exhaust manifold with several inlet ports and a combination of diffuser and nozzle portions associated with each inlet port for producing a high flow rate and a low pressure drop from entry to...
5822986 Exhaust system for engine  
An exhaust system for an engine having at least four exhaust ports firing in sequential order. The exhaust system includes an exhaust manifold having two collector sections which extend in...
5816044 Header assembly for internal combustion engines  
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...
5809778 Exhaust manifold with sheet metal inlet pipes  
Curved inlet pipes, which themselves are assembled from at least two curved individual pipes, are provided in an exhaust manifold with sheet metal inlet pipes from the respective cylinder head...
5787709 Exhaust manifold  
An exhaust manifold of which each exhaust port is formed by a pipe member is disclosed. Each pipe member at one end portion has a wedge shape section. Each pipe member at the other end portion is...
5768891 Exhaust system with scavenging venturi  
A collector system for exhausts that uses a junction to merge the an engine's primary tubes in a linear arrangement. Thus, all exhaust gas passes cleanly through the unit with no interference or...
5765372 Lean burn engine for automobile  
A lean burn engine adapted to establish a specified air-fuel ratio leaner by predetermined rate than a stoichiometric air-fuel ratio in a range of low engine speeds and low engine loads is provided...
5729973 Exhaust collector with primary tube  
An exhaust collector for collecting exhaust gases from a multiple cylinder combustion engine to a common flow includes primary tubes. To reduce mass and heat losses in the exhaust system, the...
5729974 Exhaust system for a "V"-type engine  
An exhaust system for a "V"-type engine having front and rear banks of cylinders each containing two cylinders is disclosed. The exhaust system includes a pair of cylinder heads and exhaust pipes...
5727386 Structure of an exhaust manifold branch collecting portion  
A collecting portion for an exhaust manifold branch where a combined pipe portion including a plurality of pipes is welded to a collecting pipe wherein, (1) an intermediate member is provided...
5678404 Internal combustion engine variable tuned exhaust system  
An exhaust system for an internal combustion engine having an exhaust port and an exhaust chamber communicating between the ports includes a variable dimension element in the exhaust chamber...
5568726 Exhaust pipe structure for a motorcycle  
To provide an exhaust pipe structure capable of arranging a plurality of exhaust pipes in a restricted space inside a cover and suppressing the discoloring of the cover due to an increase in the...
5519994 Muffler with inlet pipe equalizer  
An arrangement for silencing the exhaust gases discharged from a multi-cylinder internal combustion engine, wherein the exhaust gas is discharged in first and second streams from separate exhaust...
5473891 Three-piece stamp formed connector for achieving equal length exhaust pipes  
A connector is provided for joining two upstream exhaust pipes with a downstream exhaust pipe and for substantially offsetting any difference in length that may exist in the upstream exhaust pipes....
5471835 Exhaust system for internal combustion engines  
An exhaust control system having a plurality of exhaust manifolds is configured and arranged such that combustion of exhaust gases flowing therethrough is unhibited to the extent that the...
5463194 Exhaust system  
An exhaust system for a motor vehicle internal combustion engine is described in which the lower end of the exhaust manifold (10) and the upper end of the down pipe (12a, 12b) each comprise two or...
5437155 Outboard motor exhaust system  
An outboard motor comprising a lower unit including an outer housing and an inner exhaust housing mounted within the outer housing, the inner exhaust housing defining an exhaust chamber, the upper...
5392601 Exhaust system for an internal combustion engine  
An exhaust system for an internal combustion engine includes a conduit in fluid communication with a combustion chamber for transferring exhaust gases from the combustion chamber. The exhaust...
RE34764 Exhaust gas discharge system for two-stroke internal combustion engine  
Disclosed herein is a two stroke internal combustion engine comprising first, second, third, and fourth cylinders which fire in a predetermined sequence and which include respective first, second,...
5351481 Muffler assembly with balanced chamber and method  
A compact, high performance exhaust assembly (50) for an internal combustion engine (20) or the like having a balanced chamber (52). Two substantially parallel inlet exhaust pipes (38, 40) are...
5261231 Intake/exhaust air pressure balancer and method of reducing intake/exhaust air pressure resistance  
The specification related to an intake/exhaust air pressure balancer connected to an intake apparatus and/or an exhaust apparatus of an internal combustion engine and a method of reducing the...
5216883 Header assembly for internal combustion engine and method  
A header assembly for an internal combustion engine including a pair of header pipes having discharge ends, a collector mounted on the discharge ends and having a housing directing exhaust gas...
5199258 Adjustable torque/horsepower exhaust control system  
An automotive vehicle header system is described as incorporating a collector having pipes of inside diameter slightly greater than the outside diameter of the pipes exiting from the engine heads...
5152138 Exhaust system for sideway-mounted engine  
An engine has first and second cylinder rows substantially parallel to each other and is mounted sideways so that the cylinder rows are arranged side by side in the longitudinal direction of the...
5144799 Crossfire calibrated exhaust system  
This invention relates to a dual-exhaust system for an internal combustion automotive engine. Instead of just the usual direct channeling of exhaust gases from the engine towards the muffler, the...
5134851 Five cylinder outboard motor  
A five cylinder two cycle outboard motor includes exhaust tuning of the five in-line cylinders. Exhaust tuning of five in-line cylinders provides increased horsepower for the five cylinder two...
5092284 Control valve arrangement for engine  
An improved control valve arrangement for an internal combustion engine that includes a staged, separately tuned induction system and an exhaust system that contains an exhaust control valve. The...
5072583 Exhaust system for internal combustion engines  
An exhaust system for internal combustion engines includes at least two exhaust passages, each passage communicated with at least one branch exhaust passage of an exhaust manifold communicating...
Matches 51 - 100 out of 193 < 1 2 3 4 >