摘要:
An air intake device of an engine has intake pipes connected to each of the engine cylinders divided into first and second groups to prevent the continuance of the intake strokes of adjacent cylinders. A first connecting cavity connected to the first group of cylinders and a second connecting cavity connected to the second group of cylinders are arranged in parallel with each other, for effecting supercharging by utilizing the dynamic effect of intake air into each cylinder. A first communicating passage is connected at one end to a longitudinal end of the first connecting cavity and at the other end to a longitudinal end of the second connecting cavity. A second communicating passage arranged on the same side as the first communicating passage is connected at one end to a side of the first connecting cavity and at the other end to a side of the second collecting cavity. The effective passage length of the first communicating passage is shorter than that of the second communicating passage.
摘要:
An intake system is incorporated in a multi-cylinder internal combustion engine having a plurality of cylinders. The intake system includes an intake manifold having a plurality of discrete intake passages connected to the plurality of cylinders, respectively, and two intake pipes, each intake pipe being arranged in such a way as to descend substantially vertically downwardly from a communicating portion where the intake pipe communicates with each of two groups of the intake passages, turns to extend horizontally in one longitudinal direction of the engine body and then turns back to extend in the opposite longitudinal direction of the engine body surrounding the discrete intake passages. The two groups of the discrete intake passages are connected to two groups of the cylinders which in each and the same group are not intended to be fired one after another.
摘要:
An air feeding system for a vehicle engine equipped with a supercharger comprises an inlet passage provided in an engine room with its first section interconnecting an air cleaner and a throttle valve, its second section interconnecting the throttle valve and the supercharger, and its third section interconnecting the supercharger and an engine body of the vehicle engine for feeding a cylinder in the engine body with intake air introduced through the air cleaner into the first section. The air cleaner is disposed at a front portion of one side half of the engine room and the supercharge is disposed in the other side half of the engine room. A part of the inlet passage including the first and second series is arranged to extend backward from the air cleaner and then to extend further along a dash panel forming a rear end of the engine room from one side half to the other side half of the engine room so as to reach temperature.
摘要:
A multi-cylinder internal combustion engine having a plurality of cylinders which do not fire one after another and intake ports for the cylinders. A mechanical supercharger is disposed in an intake passage. An intake resonance passage having no enlarged volume space or chambers, which consists of a resonance passage part and a collecting passage part directly communicating with the resonance passage part, is connected to an outlet port of an intercooler forming a pressure reflecting portion. The intake ports for the cylinders are separately communicated with the collecting passage part by way of a plurality of independent intake passages. A bypass passage is connected between the collecting passage part and the intake passage downstream the mechanical supercharger so as to form a circular passage running the mechanical supercharger, intercooler, intake resonance passage.
摘要:
A starter-alternator of a vehicle of the type being disposed between a vehicle engine and a transmission case having a field pole member coupled to an engine crankshaft of the vehicle engine. Crow-poles are interspaced to form alternating N and S poles. A field winding is stationarily placed radially inside the crow-poles. A three phase stator winding is stationarily placed to surround the crow-poles, and a housing accommodates the stator-alternator elements therein and connects the vehicle engine and the transmission case. The housing is provided with an air passage for introducing fresh air into the housing so as to blow it toward the three phase stator winding in order to cool it, and an air outlet pipe discharges air inside the housing. In association with either one or both of the windings, a water pipe in communication with a water jacket of the vehicle engine is provided to circulate cold water therethrough.
摘要:
An inventive automated heat treatment system has a furnace for heat treating forged engine valves, a carry-in mechanism for transporting the forged valves into the furnace, and a carry-out mechanism for transporting heat treated valves out of the furnace. Each of the carry-in mechanism and the carry-out mechanism has a retention mechanism for retaining valves hung, and a transport mechanism for transporting valves to the furnace as they are hung. The furnace has heating means, groups of paired rails for supporting and moving the valves hung in the furnace, and a stopper for controlling the positions of the valves on the rails. The engine valves are maintained hung with their umbrella-shaped portions supported by the respective mechanisms throughout the automated heat treatment processes. Thus, the heat treatment of engine valves is done in a fewer steps than in a conventional system.
摘要:
A spring-type fastener driving tool includes a plunger having a blade that drives in fasteners, a spring that urges the plunger downwards and is capable of being compressed upwards, a spring compression mechanism unit that includes a drum that causes the plunger to move in a compression direction of the spring based on rotational force of a motor, a reduction mechanism unit, and a one-way clutch than prohibits reverse rotation of the motor. Reverse rotation of the drum due to the urging force of the spring is prevented by providing the one-way clutch between an input side rotating shaft of the reduction mechanism unit and a rotation output shaft of the motor.
摘要:
A 4-aminoquinazoline derivative can be obtained by the steps of reacting quinazolin-4-one or its derivative with a chlorinating agent in a first organic solvent in the presence of an organic base, and subsequently reacting the reaction product with an amine compound represented by the formula R5—NH—R6 (each of R5 and R6 represents hydrogen or an optionally substituted hydrocarbyl group) in the presence of a second organic solvent.
摘要:
A photovoltaic module which prevents enlargement of the dimensions of a photovoltaic submodule by reducing ineffective parts which do not contribute to power generation. The photovoltaic module includes a photovoltaic submodule including a plurality of solar cells interposed between two light-transmitting substrates through the intermediary of an encapsulant, and a connecting lead extending from an edge between the two light-transmitting substrates for outputting generated electric current, a terminal box 30 attached near to the edge of the photovoltaic submodule housing a connecting part between the connecting lead and a cable for outputting generated electric current to the outside, and an outer frame set around the outer circumference of the photovoltaic submodule. An opening 28 through which the connecting lead and the terminal box are inserted is provided to the outer frame at a position which receives at least the terminal box.
摘要:
A polycyclic pentafluorosulfanylbenzene compound represented by the following general formula (1) and a process for producing the polycyclic pentafluorosulfanylbenzene compound which comprises reacting a specific pentafluorosulfanylbenzene compound with a specific boronic acid compound are provided. The polycyclic pentafluorosulfanylbenzene compound is a novel compound and can be produced by the process industrially advantageously. (R1 to R4 each independently represent hydrogen atom or fluorine atom, R5 represents a hydrocarbon group having at least two cyclic structures which may have substituents, and Z represents keto group, thioketo group, methylene group or difluoromethylene group.)