Rotary fluid compressor comprises a stator housing and a crankshaft rotatable about an axis of rotation and having a crank pin offset relative to the axis of rotation. A rotor is disposed by a bearing assembly on the crank pin for orbiting motion about the axis of rotation in the stator housing. An annular spring is assembled between the bearing assembly and either the rotor or the crank pin with the spring radially compressed to an extent to provide a controlled spring preload that, in combination with a controlled spring rate, maintains radial sealing force between the rotor and the stator housing between preselected minimum and maximum design values.
Vapor Recovery Control System For An Internal Combustion Engine
A system and method for controlling a vapor recovery system. The system uses a vapor sensor canister containing activated charcoal and two temperature probes. The sensor provides a differential temperature measurement that can be monitored and processed to determine hydrocarbon content in the vapor recovery system.
Bonding Material And Phase Change Material System For Heat Burst Dissipation
There is disclosed herein an electronic circuit assembly using a bonding material/phase change material system for electronic device heat burst dissipation. One embodiment of the assembly comprises: a substrate having a substrate surface with a preselected mounting site located thereon; a predetermined amount of phase change material disposed on the substrate surface at the preselected mounting site; a predetermined amount of bonding material arranged on the substrate surface at the preselected mounting site so as to substantially surround the predetermined amount of phase change material; and an electronic device having a heatspreader portion, the device being oriented such that the heatspreader portion is positioned at the preselected mounting site over the predetermined amounts of phase change material and bonding material, the heatspreader portion being attached to the substrate surface by the bonding material.
Hydraulic Lash Adjuster With An Open Ended Top Plunger Surface
A hydraulic lash adjuster mechanism for an internal combustion engine having a body portion with a bore formed in the body portion having a bottom surface. A plunger having a top surface is slidingly received within the bore of the body portion. The plunger has an internal channel with a bleed hole formed therein connecting the top surface of the plunger to a high pressure chamber formed between the bottom surface of the bore and the bottom of the plunger. The body portion has a valve opening formed therein that is in fluid communication with an engine fluid supply. A check valve mechanism selectively opens and closing the valve opening in response to pressure differences between the engine fluid reservoir and the high pressure chamber. The diameter and length of the bleed hole and the force applied to said top surface of said plunger control the leak down rate of the hydraulic lash adjuster to eliminate lash in the engine valve train components.
Hydraulic Lash Adjuster With Pressure Relief Check Valve
A hydraulic lash adjuster mechanism for an internal combustion engine, the adjuster having a body with a bore formed therein, a plunger slidingly received within the bore, and a high pressure chamber formed between the bottom of the bore and the plunger. The plunger has a fluid chamber formed therein to receive engine fluid through an inlet opening and is in communication with a first check valve mechanism for regulating the flow of fluid from the fluid chamber through a valve opening into a high pressure chamber. A leak path allows fluid to escape from the high pressure chamber due to increased force on the plunger. The high pressure chamber is in communication with a second check valve mechanism for allowing fluid to leak from the high pressure chamber at an increased rate in response to increased force on the plunger.
A fuel vapor emission control system for an automobile includes a fuel filler pipe, a filler cap, a check valve, a fuel tank, a carbon canister or other vapor storage device, a reservoir, and a vapor tube for conducting fuel vapor from one or more tank vent valves located on the fuel tank. The system reduces the amount of vapor mass which exits the fuel tank to the carbon canister by condensing some of the vapor sent to the canister during refueling. Fuel entering the filler pipe is used as a condensing agent. The system also reduces the amount of vapor pumped to the vapor storage device during diurnal cycles by permitting the volume of the fuel tank to change in response to changes in pressure within the tank.
An air inlet duct is provided for a heat exchanger of a vehicle. The heat exchanger having a top portion and a bottom portion for receiving air from an air inlet duct. The duct has an outer wall that fits against the heat exchanger and a center baffle for dividing air flow equally to the top and bottom portions of the heat exchanger. The center baffle has at least one member with a vertical portion dividing the air inlet into a plurality of vertical sections and at least one horizontal portion combining alternate ones of the vertical sections and directing air flowing therethrough to the top portion of the heat exchanger and also combining other alternate ones of the vertical sections and directing air flowing therethrough to the bottom portion of the heat exchanger so that the top and bottom portions receive substantially equal air flow.
Apparatus For Controlling The Rate Of Composition Change Of A Fluid
A reservoir in which fluid entering the reservoir is mixed with fluid already present in the reservoir is provided. The mixed fluid is then drawn from the reservoir in such a manner that the fluid drawn from the reservoir has a composition which closely approximates the average composition of the fluid in the reservoir. In this manner, the rate of composition change of fluid released from the reservoir is less than the rate of compositional change of fluid entering the reservoir.
Kevin Stanton, Charles Ballentine, Shauna Gates, Kenneth Lahman, Orville Pierce, Denise Jacobs, Keith Siruta, Carolyn Smith, Nancy Babst, Kathryn Cech, Richard Barrett, Tracee Potter