Abstract:
An air cleaner housing system with an detachable air cleaner tube and a method of doing same. The air cleaner housing system includes the air cleaner tube, an air cleaner housing including an aperture, an air filter disposed inside the air cleaner housing, an attachment mechanism comprising a first portion disposed on the air cleaner tube and a second portion disposed on the air cleaner housing, and a first seal disposed between the air filter and the air cleaner tube. The attachment mechanism is a radial twist fit connector which moves between a first rotational position to attach the air cleaner tube to the air cleaner housing, and a second rotational position to detach the air cleaner tube from the air cleaner housing. Alternately, the attachment mechanism is an axial twist fit connector.
Abstract:
An intake manifold has a plurality of branch tubes each joined by brazing in a furnace at one end to a flange on the engine side and at the other end to a surge tank on the throttle chamber side. The surge tank is separated into two pieces or a brazing side member and a non-heating side member. Branch tubes are fixed in position relative to the brazing side member by peen locking with a peening tool or the like and are then joined to the brazing side member by brazing in the furnace. The non-heating side member is not subjected to the brazing in the furnace but is joined to the brazing side member by bolts or the like.
Abstract:
An intake manifold with vacuum storage for a vehicle engine defined by an integrally formed enclosure assembly for the manifold and for the vacuum storage. The intake manifold portion of the enclosure assembly defines a plenum space and a plurality of branch runners fluidly connected to an air inlet for providing air flow into the associated engine. The vacuum storage portion of the enclosure assembly defines a storage space for vacuum. A passageway extends between the plenum space and the vacuum storage space and a check valve is provided therein to allow air flow from the vacuum storage space into the plenum space to block air flow from the plenum space into the vacuum storage space.
Abstract:
The device is utilized to create swirling, turbulent flow to the air entering an internal combustion engine, and to the exhaust gases therefrom prior to the gases entering an air pollution system. The device utilizes multiple curved and radially angled vanes to force the air into a predetermined turbulent, swirling pattern. For carbureted engines, the device is positioned between the air filter and the inlet to the carburetor and on fuel injection engines, the device is positioned at the inlet port of the intake manifold. 100% of the air which will enter the engine will have been forced into a swirling and turbulent flow by the device for maximum combustion efficiency. Within the exhaust system, the device is positioned within the exhaust tube(s) just upstream of the catalytic converter to force the gases into a swirling and turbulent flow, thereby permitting a more efficient utilization of the catalytic converter process.
Abstract:
Method and apparatus of manufacturing a synthetic resin tubular member having differently oriented inlet tube and outlet tube portions uses a pair of displaceable molding dies. One of the dies is rotatable relative to the other die. The molding dies have a core portion fitted to the tube end of one of the inlet and outlet tube portions and is slideable in a direction different from the direction in which the dies open and close. The method includes the steps of core insertion, die clamping, injection, die opening, core removal, ejection, and die rotation. Each time the molding die is rotated one step, a primary molding step, in which two molding halves of the tubular member are formed, and a secondary molding operation, in which the two molding halves are joined, are formed, so that a finished tubular member is obtained for each rotational movement of the molding dies. A melted resin is filled into an interior passage defined along a peripheral edge of one of the dies after the molding dies are brought into abutment with each other to join the two halves. The finished product can be a synthetic resin manifold. The manifold has a plurality of outlet tube portions branching from an inlet tube portion. One of the two halves has both the inlet and out tube portions. That is, the inlet and outlet portions are monolithic to provide seamless inlet and outlet.
Abstract:
between two half-shells (2, 3) molded and fixed to each other in order to form an envelope (1), there are mounted air tubes (12a) with a ringed external face (14) and a smooth interbl face (13) which are fixed by means of end sleeves (17a, 18a) to the envelope (1). The outlet sleeve (18a) is held within a half-shell (3) by means of a fixing clamp (6) to the cylinder-head of the engine by being sealingly connected to an opening (7) of the nozzle comprised of a cradle (29a) integrally cast cover (31a) fixed to the cradle in prder to hold a seal (28) to the extremity of the outlet sleeve (18a), the seal being compressed between the sleeve (18a) and the nozzle (29a, 31a). Application particularly to intake manifolds of internal combustion engines, preferably with controlled ignition.
Abstract:
An air cleaner, a throttle, a surge tank and air-intake pipes of an intake manifold are combined in a unit and a fuel delivery pipe and fuel injectors are installed in the unit before the unit of an air-intake device is assembled to an internal combustion engine. Cases of the above members are integrally formed thereby to reduce the size of the device and material used for the device. A dusty-side of the air cleaner is disposed under a filter element to prevent dust and water from getting into the clean-side of the filter element when the element is removed to have serviced or inspected.
Abstract:
In a flow deflector structure for an intake air duct of an internal combustion engine which includes a housing with air inlet and outlet openings arranged at a predetermined angle with respect to each other for redirecting air flowing through the deflector structure and with flow guide vanes curved according to the flow direction change provided by the flow deflector structure, the housing has a flow cross-section which is larger than the flow cross-section of the inlet and outlet openings and a side wall opening with a cover to facilitate forming, or insertion of the guide vanes in the housing.
Abstract:
In brazing a first metal piece having a tubular joint portion of predetermined length at an end thereof and a second metal piece having a bore for inserting the extremity of the joint portion thereinto by replaced brazing with the extremity of the joint portion inserted in the bore, a plurality of axial grooves having a depth of 0,3 to 1,5 mm and arranged at a spacing of 5 to 30 mm in the circumferential direction are formed in the outer peripheral surface of joint portion of the first metal piece. Each of the grooves has one end extending to the outside of the bore of the second metal piece when the joint portion is inserted in the bore. The gas or residue of flux produced during brazing escapes through the grooves, whereby voids or like defects are prevented from occurring in the fillet of the brazed joint. Since the grooves are all filled up with the brazing filler metal, the brazed joint is given a sufficient bond strength and prevented from permitting leakage there-through.
Abstract:
An intake manifold (10) includes cast plenum (12) and flange (14) members defining a plurality of outlet (22) and inlet (24) holes therein. Tubes (16) have opposite first (44) and second (46) ends which are received into the outlet (22) and inlet (24) holes with an interference fit and joined thereto with metallurgical bonds (48,50) comprising a low melting point metal coating material (52), such as zinc, alloyed with the tube metal and each of the plenum and flange metals. The method includes coating the ends (44,46) of the tubes (16) and the walls of the holes (22,24) with the molten coating material (52), heating the plenum (12) and flange (14) to an elevated temperature and then forcing the tubes (16) into the holes (22) to form the metallurgical bonds (48,50).