Abstract:
A tube (40) for directing fluid along a path that includes a bend. The tube (40) comprising a conduit having a first aperture, a second aperture, and a bend portion adjacent the second aperture. An outer bend surface is integrally formed as part of the conduit to at least partially define the second aperture. An insert (65) includes at least a portion of an inner bend surface and is disposed at least partially within the second aperture such that the outer bend surface and the inner bend surface cooperate to at least partially define the bend.
Abstract:
A surge tank structure in an intake manifold has a surge tank to which a plurality of branch tubes are joined at one end. The branch tubes are joined at the other end to a cylinder head mounting flange, and one end of each branch tube in the surge tank is enlarged to have a horn-like shape. The surge tank comprises a main body and a top plate. The main body has through holes provided therein for accepting the branch tubes and has its top side opened. The top plate is joined in a plane to the top of the main body. The main body has a bottom which has engagement recesses formed by raised portions, so that each engagement recess has a horn-like surface that conforms to the horn-like shape of one end of each branch tube.
Abstract:
The invention relates to an intake module (100) for a combustion engine, which includes a wall (101) having an outer surface (102) and an inner surface (103). The inner surface (103) at least partially defines an intake path (104) into the intake module (100) through which air can be brought to a cylinder (105) in the combustion engine. The outer surface (102) of the wall (101) includes a projection (106) defining a drilling axis (107) oriented from the outer surface (102) towards the intake path (104).
Abstract:
This summary refers to an invention patent for an airflow converger, belonging to the field of auto parts, that was developed to improve air supply conditions and performance of internal combustion engines, comprising: a tubular body (1) equipped at the upper end with an air inlet (2), having parallel fins (3) that direct the airflow lines in parallel; internally, said body (1) has a surface (5) that acts on the airflow; and the opposite end of said body has an outlet (4) positioned horizontally and connected an air receiving medium (20) like a carburetor or throttle body of a vehicle's engine system.
Abstract:
This summary refers to an invention patent for an airflow converger, belonging to the field of auto parts, that was developed to improve air supply conditions and performance of internal combustion engines, comprising: a tubular body (1) equipped at the upper end with an air inlet (2), having parallel fins (3) that direct the airflow lines in parallel; internally, said body (1) has a surface (5) that acts on the airflow; and the opposite end of said body has an outlet (4) positioned horizontally and connected an air receiving medium (20) like a carburetor or throttle body of a vehicle's engine system.
Abstract:
An intake manifold comprising a plurality of intake pipes (3) connecting a collector to an intake pipe mounting part, wherein the intake pipes (3) bent in specified shapes, respectively, are formed by bending a generally straight metallic dual tube, set so that a clearance (3c) between an outside tube (3a) and an inside tube (3b) is 0.2 mm or less, to bring the outside tube (3a) into contact partially with the inside tube (3b) at its middle part, whereby each intake pipe (3) is structured so that the outside tube (3a) is brought into contact partially (slidably each other) with the inside tube (3b) at its middle part, and an air layer of approx. 0.2mm or less in thickness is formed between the outside tube (3a) and the inside tube (3b) in those areas other than a contact part (3e).
Abstract:
An air intake system for a fuel injection engine having cylinders equipped with a swirl port (14a) and a conventional straight port (14b). The air intake system comprises a swirl control valve (32) for opening or closing the inlet air passage (20b) to the straight port, and further comprises an adapter (40) piece installed in the division wall (28) separating the inlet air passages (20a,20b) into the swirl port and the straight port. An aperture (27) communicating both inlet air passages is formed in the adapter piece, and the size thereof is optimized in consideration of the size of an air induction hole (32a) disposed in the swirl control valve, to thereby obtain a larger operation area of the air fuel ratio of the lean air fuel mixture supplied to the engine.