摘要:
In an assist-air type fuel injection device for an internal combustion engine in which an assist-air for atomizing fuel is supplied toward an injected fuel on the lower stream of a nozzle hole of a fuel injection valve, a pressure detection part for detecting a pressure of the above assist-air is provided at the fuel injection valve, and the pressure of the assist-air detected at the above pressure detection part is supplied as a signal pressure to a pressure regulator for regulating a fuel supply pressure to the fuel injection valve. Without being affected by the assist-air pressure, a fuel flow rate can be stabilized, whereby control accuracy of the fuel injection amount can be maintained favorably.
摘要:
An internal combustion engine having an assist air supply device for finely dividing injected fuel and an exhaust gas recirculation device for selectively circulating an exhaust gas from an exhaust passage into an air intake passage. In this internal combustion engine, a swirl operation for a lean burn during a low load on the engine and a non-swirl operation for a burn based on a theoretical air-fuel ratio can be selectively switched between such operations. In the non-swirl operation, the supply of an assist air and the recirculation of a large amount of an exhaust gas are carried out. This makes it possible to reduce both specific consumption of fuel and the amount of NO.sub.x in the exhaust gas over the entire operational region of the engine.
摘要:
Disclosed herein is an emission control device for use with a carburetor having a base and at least one fuel opening defined in its base. The device is comprised of a body member of predetermined thickness and defining therein at least one through opening. The through opening communicates with the fuel opening in the carburetor. The device also has an air passageway largely defined in its surface. The air passageway communicates with the through opening. The passageway lies generally adjacent the carburetor and the fuel opening so that air passed through the passageway passes into the through opening and under the fuel opening.
摘要:
A pneumatic direct cylinder fuel injection system for an internal combustion engine includes a pneumatic injector for each cylinder so as to supply a pressurized air/fuel charge to an associate stratified charge chamber forming a part of the associate combustion chamber preferably during the compression stroke of the associate piston, the quantity of fuel being supplied by an electromagnetic fuel injector. The pressurized air for the system can be supplied by an electrical or engine driven air pump or preferably the engine itself can be used as an air compressor with each cylinder having an air source control valve operatively associated therewith to control the flow of pressurized air during the compression stroke of the piston in its associate cylinder.
摘要:
A control system for internal combustion engines adapted to take in ambient air and mix it with waste gases from a crankcase to form a molecular comburent mixture to aid in combustion. The system includes a housing mounted between the crankcase and the engine manifold that both forms the comburent mixture and regulates the introduction of the same into the engine manifold.
摘要:
An engine carburetor and related methods, the disclosed carburetor comprising (a) an atomizing section comprising several fuel/air mixing sites where a high degree of vaporization and homogenization is achieved, (b) a crankcase fume recycling section, (c) a main air intake section, (d) a fuel metering section and (e) an excess fuel removal and fuel recycling section.
摘要:
In an air assist device of a fuel injection type internal combustion engine, having an air assisted injector provided close to a nozzle thereof with an adapter constituting an assist air introducing portion, in which assist air introduced into the assist air introducing portion through assist air intake ports formed in the peripheral wall of the adapter is blown out of an assist air jet formed at the bottom of the adapter together with fuel so as to facilitate the atomization of fuel, the diameter of each opening of the assist air intake ports is made smaller than the diameter of an opening of the assist air jet, the assist air intake ports are provided in a plural number, so that the total opening area of the assist air intake ports can be made larger than the opening area of the assist air jet, and/or the assist air intake ports are penetrated in directions tangential to the inner wall surface of the adapter.
摘要:
A device for use in association with a carburetor of the type used for supplying fuel at the intake manifold of a gasoline internal combustion engine has an annular chamber at the exit port of the carburetor, adapted to collect uncarbureted raw gasoline particles or globules for drainage through an external vaporizing system under the influence of the vacuum created at the intake manifold during operation of the engine for reintroduction as vaporized fuel at the intake manifold, thereby converting raw gasoline, otherwise wastefully fed to the engine, into efficiently combustible fuel.
摘要:
A secondary air feeder for an internal combustion engine, including a vortex chamber provided between a carburetor and a suction pipe. The air supply to the vortex chamber is regulated by an air supply regulator, in which a valve is opened and closed in accordance with the engine speed.
摘要:
A fuel economizer for internal combustion engines which increases turbulence of the fuel and air mixture in the carburetor by decreasing the throat of its venturi to a predetermined minimum necessary to induce fuel flow through its fuel jets and then downstream of the venturi adding further atmospheric air for complete combustion.