摘要:
A fuel injector has a chamber between a valve body and a plate in which a plurality of through holes are formed. The chamber has a diameter larger than that of an opening of the valve body. The through holes are opened at an outer chamber area shaded by the valve body are distanced from an outer wall of the chamber more than a diameter of the through hole. Fuel flowing along an inner inclined surface of the valve body turns to the through holes and flows into the through hole from all directions and collides with each other at inlets of the through hole. Therefore, injected fuel has a lot of turbulences and is finely atomized.
摘要:
In a fuel supply device for an engine, a clip is fitted in two grooves formed in a fuel injector through its pawls parallel with each other, and fitted with a convex portion formed on a fuel delivery pipe through its window portion. The clip is prevented from slipping out of the injector in an axial direction and the fuel delivery pipe. Even if a wire harness tends to slip out of an electric connector, a sealing member is stopped at a stopper plate of the clip to thereby prevent the wire harness from slipping out.
摘要:
A flow meter for measuring a flow rate of fluid includes a body providing a main passage through which the fluid flows. A plurality of support elements connect an inner wall surface of the body and a central element so as to support the central element substantially at the center of the main passage. An introducing port opens to the central element for introducing a part of the fluid flowing through the main passage. A branch passage is formed within the central element, through which such part of the fluid flows. A sensor is disposed within the branch passage for measuring a flow rate within the branch passage. An outlet opens to a portion of the central element located at upperstream of the downstream ends of the support elements for returning the fluid flowing through the branch passages to the main passage.
摘要:
Disclosed is a new and improved method for automatically balancing the temperature of a plurality of reversing heat exchanger units provided in parallel relation with each other. The balancing method comprises the steps of: detecting the temperature in portions of each core of the reversing heat exchangers whenever the flow paths of a feed stream and a heat medium stream are changed over, calculating a mean temperature of each core from the said detected values during the most recent certain changeover period from the current time point, calculating a mean temperature for all exchangers from the said calculated mean temperatures of each core, calculating deviation and deviation trend in temperature of respective exchangers depending on a difference between the mean temperature of each core and the mean temperature of all exchangers, feeding back a system deviation in dependence on the said deviation and deviation trend to control valves for balancing the temperature of reversing heat exchangers.
摘要:
A mounting structure of an LED includes an LED unit including an LED, a lens element in front of the LED, and a collar around the lens element; a support member including a through-hole through which the lens element of the LED unit is exposed and an annular portion; an annular contacting surface formed on one of the annular portion as an annular concave surface and the collar as an annular convex surface; an annular contacting portion, formed on the other of the annular portion and the collar, wherein an orientation of the LED unit is adjusted by changing a relative contacting position between the annular contacting surface and the annular contacting portion; and a fixing device which fixes the LED unit to the support member while maintaining the contacting position of the annular contacting surface and the annular contacting portion after the adjustment.
摘要:
A fluid injection nozzle has an injection port plate, an injection port and a protruding portion. The injection port plate is to be mounted on a downstream end of a fluid injection valve so that a center axis thereof is coaxial to the fluid injection valve. The injection port penetrates the injection port plate between an inlet and an outlet. The protruding portion protrudes from an inner surface of the injection port to shift a direction of at least a part of a fluid flow passing through the injection port to flow in a circumferential direction of the inner surface.
摘要:
A central member of a sensor unit is inserted through a sensor unit mounting hole of a cylindrical body having a main passage and the sensor unit is assembled on the cylindrical body. The sensor unit comprises the central member which is provided at the center of the main passage and has internally a bypass passage, a flow sensor provided in the bypass passage, a rib which supports the central member, a mounting section which secures the rib to the cylindrical body, an electronic circuit assembled on the rib, and a connector section retaining terminals being connected electrically to the electronic circuit section. Positioning, mounting and securing of the flow sensor can be made simultaneously by a simple process to insert the sensor sensor unit through the hole. Turbulence, eccentricity and others in the upstream air are reduced so that the flow rate of a highly rectified fluid can be measured.
摘要:
An apparatus for measuring a flow rate of gas comprises a gas passage through which the gas to be measured flows in an axial direction thereof, a movable member linearly movable being disposed in the gas passage in a gas flow direction, a flow pipe providing therein the gas passage, a cross-sectional area of the flow pipe being increased along the gas flow direction in at least over a moving range of the movable member, a rod secured to the movable member to extend from the movable member along the gas flow direction, a bearing for bearing the rod for movement in response to moving of the movable member, the bearing being disposed in the gas passage and secured to the flow pipe, a helical spring for urging the movable member towards a direction opposite to the gas flow direction, a potentiometer for converting an amount of displacement of the rod into an electric signal, an amount of the displacement of the rod corresponding to that of movement of the movable member, a first cylinder closed at one end thereof by the movable member and opened at the other end thereof, the first cylinder extending along the gas flow direction, and a second cylinder disposed in the gas passage and secured to the flow pipe, the second cylinder being closed at one end thereof and opened at the other end thereof, the second cylinder being engaged at the other end thereof with the other end of the first cylinder through a minute clearance therebetween.
摘要:
At fuel downstream end of a valve body, there is arranged an injection port plate formed into a thin disc shape. In the injection port plate, there are formed four injection ports having fuel inlets in a common circumference on the center axis of the injection port plate. The injection ports are formed in the fuel injecting direction apart from the center axis of the injection port plate. In each injection port, with respect to the injection port axis joining the center of the fuel inlet and the center of the fuel outlet of each injection port, the injection port inner circumference more distant from the center axis of the injection port plate is more inclined toward the outer circumference with respect to the center axis than the injection port inner circumference less distance from the center axis of the injection port plate with respect to the injection port axis.
摘要:
A rotation transmitting device 1 introduces rotation into a vacuum side space 200 via a flexible meshing type gear drive 4 from an atmosphere side space 100. A first spacer 15 is disposed between ball bearings 13 and 14 of a rotation output shaft 5 positioned at the vacuum side, and a magnetic circuit is formed passing from the spacer 15 and through the ball bearing 13, a shaft portion 51 of the rotation output shaft 5 and the ball bearing 14. A magnetic fluid is filled as lubricant for lubricating potions of the ball bearings 13 and 14, which is retained on these portions by magnetic force generated by the magnetic circuit, whereby these portions are always lubricated appropriately. The magnetic fluid retained on these portions captures wear particles or other dust generated from the ball bearings 13 and 14, preventing these particles from leaking out to the vacuum side.