摘要:
Central mounting of control electronics proximate to the engine is provided by attaching the electronics to an upper surface of the intake manifold to provide heat shielding and heat conduction for active components on the circuit card. The central location provides extremely short harnesses to important actuators located in cylinder heads of the engine thus reducing wiring clutter and cost.
摘要:
A liquid cooled semiconductor device is provided. The device includes a semiconductor die, a heat spreader, a wetting material, a sealant, a substrate, and a base. The spreader is mounted to a substrate such that a first side of the spreader is exposed on one side of the substrate and that a second side of the spreader is exposed on an opposing side of the substrate. Attached to a first side of the spreader is the semiconductor die. The wetting material is used to provide a thermal/electrical connection between the die and heat spreader. Sealant is provided between the die and the heat spreader to encapsulate and contain the wetting material. The substrate is mounted to the base, whereby the second side of the spreader is exposed to allow fluid to flow across the second side, directed within a channel defined by the base, and transfer heat away from the spreader.
摘要:
A throttle body and an air control system that integrates the electronic engine control modules, sensors, actuators, and associated wiring on a throttle body is disclosed. In one version of the invention, there is provided a throttle body including a throttle body wall defining an airflow passage in the throttle body, a movable throttle plate that substantially conforms to the interior dimensions of the air flow passage, an engine control device (such as a sensor or an actuator) attached to the throttle body wall, and engine control electronics mounted to the throttle body wall in spaced apart relationship with the engine control device, the engine control electronics being electrically connected with the engine control device. In another version of the invention, there is provided an air control system including a throttle body having a wall defining a first airflow passage in the throttle body, a movable throttle plate substantially conforming to the interior dimensions of the first airflow passage, an air intake manifold having a wall defining a second airflow passage, the air intake manifold being attached to the throttle body such that the first airflow passage and the second airflow passage are placed in fluid communication, an engine control device mounted to the air intake manifold, and engine control electronics mounted to the throttle body wall, the engine control electronics being electrically connected with the engine control device.
摘要:
A method is provided for applying a fluid to a plurality of locations on a non-planar substrate. The apparatus used includes a movable base and an array of pins connected to the base. Each pin has a distal end which is vertically movable with respect to the base independently of the rest of the array of pins. Each distal end is adapted to transfer fluid to a location on the substrate by having a greater affinity for the fluid than the fluid has for itself and a lesser affinity for the fluid than the fluid has for the substrate. Accordingly, the distal ends may be dipped in the fluid and moved into contact with the substrate such that the distal ends may collapse toward the base as the distal ends engage the substrate to facilitate further movement of the base toward the substrate for application of fluid to each of the plurality of locations.
摘要:
A novel apparatus for compressing viscous material through openings in a stencil is disclosed. The novel apparatus has a compression headcap which provides a contained environment to direct and to aid the flow of pressurized viscous material through the openings in the stencil. The compression headcap includes two generally parallel wiper blades that are biased into sliding communication with the stencil. Longitudinal diffuser plates guide and equalize the flow of the viscous material into the volume between two generally parallel wiper blades.
摘要:
A method of forming a position measurement system includes melting a surface of a substrate formed from a first material, wherein the surface defines at least one groove therein and wherein the surface is melted within the at least one groove. The method also includes, concurrent to melting, depositing a second material into the at least one groove to form a mixture of the first material and the second material. The method further includes solidifying the mixture to form an indicator material that is distinguishable from and metallurgically bonded to the first material, and depositing an alloy onto the substrate to form a corrosion-resistant cladding that covers the indicator material and the surface to thereby form the position measurement system. A position measurement system is also disclosed.
摘要:
A fluid vessel includes a body structure defining a cavity, an inlet structure defining a first channel, and an outlet structure defining a second channel. The body structure includes an overlay material surrounding the cavity, and includes a metal substrate surrounding the overlay material. The first channel and second channel are provided in fluid communication with the cavity. The inlet structure and outlet structure each include an overlay material surrounding the respective first channel and second channel, and include a metal substrate surrounding the respective overlay material. The overlay material of each of the body structure, the inlet structure, and the outlet structure is fused to the respective metal substrate of the body structure, the inlet structure, and the outlet structure through laser cladding.
摘要:
A method of forming a position measurement system includes melting a surface of a substrate formed from a first material, wherein the surface defines at least one groove therein and wherein the surface is melted within the at least one groove. The method also includes, concurrent to melting, depositing a second material into the at least one groove to form a mixture of the first material and the second material. The method further includes solidifying the mixture to form an indicator material that is distinguishable from and metallurgically bonded to the first material, and depositing an alloy onto the substrate to form a corrosion-resistant cladding that covers the indicator material and the surface to thereby form the position measurement system. A position measurement system is also disclosed.
摘要:
A novel apparatus for compressing viscous material through openings in a stencil is disclosed. The novel apparatus has a compress on head cap which provides a contained environment to direct and to aid the flow of pressurized viscous material through the openings in the stencil. In another embodiment of the invention, the compression head includes a viscous material reception chamber which has a certain shape which is effective to cause said received viscous material to be selectively dispensed while having a substantially uniform velocity profile and which further provides for the creation of a substantially uniform pressure profile.
摘要:
A method of manufacturing an improved multi-layer printed circuit assembly having at least two conductor patterns. The method includes providing a first layer having a first metal surface a second layer having a second metal surface. A thin flexible carrier is placed between the first and second layers. The first and second layers are attached to opposite surfaces of the carrier. The first and second metal surfaces are etched to form first and second conductor patterns. The conductor patterns form the electrical traces interconnecting components on an electronic circuit assembly. The first and second conductor patterns are electrically connected to form an electronic circuit assembly that includes electronic traces on both sides of the circuit board.