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| Number | Title | Issue Date |
| 5448981 | Regulated flow canister purge system The evaporative emission control system for an internal combustion engine purges the vapor collection canister to the intake manifold through a purge regulator controlled by the engine ECU. The purge regulator comprises a diaphragm valve and an electronic... | 09/12/1995 |
| 5424494 | Noise-attenuating internal combustion engine air intake system Noise is attenuated by a resonator having an inlet pipe leading to an expansion chamber and an outlet pipe leading from the expansion chamber. The two pipes are not aligned with each other at the expansion chamber. The portions of the two pipes proximate ... | 06/13/1995 |
| 5411004 | Positive pressure canister purge system integrity confirmation The tank/canister volume's integrity against unacceptable leakage measured by a diagnostic test performed by an on-board diagnostic system which includes an electrically operated air pump and tank-mounted analog pressure transducer. At the beginning of a ... | 05/02/1995 |
| 5401001 | Internal combustion engine exhaust control valve The valve shaft passes through a journal bearing in the wall of the valve body to an actuating lever attached to the shaft on the outside of the valve body. This journal bearing is sealed by an arrangement of several parts to prevent escape of exhaust gas... | 03/28/1995 |
| 5383437 | Integrity confirmation of evaporative emission control system against leakage An on-board diagnostic system for an evaporative emission control system of an internal combustion engine powered vehicle employs a positive displacement reciprocating pump to create in evaporative emission space a pressure that differs significantly from... | 01/24/1995 |
| 5299811 | Seal member mounted in housing pocket by resilient retaining member An inexpensive, efficient seal member having a tubular housing member that can be integral to or attached to a frame of a motor to form a ring seal around the shaft of the motor prior to mating the shaft with a pump or other driven device. The flexible el... | 04/05/1994 |
| 5297529 | Positive pressure canister purge system integrity confirmation The tank/canister volume's integrity against unacceptable leakage is either confirmed or denied by a diagnostic test performed by an on-board diagnostic system which includes an electrically operated air pump and tank-mounted analog pressure transducer. A... | 03/29/1994 |
| 5267470 | Pressure sensor mounting for canister purge system An evaporative emission control system for an automotive vehicle comprises an integrated roll-over valve and vapor pressure sensor assembly mounted by means of a grommet in the top wall of the vehicle's fuel tank. The vapor pressure sensor forms part of a... | 12/07/1993 |
| 5244347 | High efficiency, low noise, axial flow fan The fan has an outer circular band that is spaced axially rearwardly of the hub. Forwardly skewed blades extend between the band and hub. Each blade has a radially intermediate portion that has reverse curvatures, namely a radially inner section curving a... | 09/14/1993 |
| 5237980 | On-board fuel vapor recovery system having improved canister purging An irregularity that might otherwise be present in the flow characteristic of the system is cured by damping the motion of the armature of the CPS valve in two ways. One way comprises incorporating a "step" into the confronting faces of the armature and s... | 08/24/1993 |
| 5230654 | Diffuser air outlet register Each vertical vane contains two vane groups that are independently pivotable about their co-axis. A push button control mechanism selects between a jet setting in which both vane groups are parallel and a diffuse setting in which the two vane groups are n... | 07/27/1993 |
| 5226398 | Regulated flow canister purge system The evaporative emission control system for an internal combustion engine purges the vapor collection canister to the intake manifold through a purge regulator controlled by the engine ECU. The purge regulator comprises a diaphragm valve and an electronic... | 07/13/1993 |
| 5211139 | Active manifold A shaft-door unit that is operable for selecting the effective lengths of runners leading from a plenum is assembled into the manifold by lengthwise insertion through an opening in an end wall of the plenum that is subsequently closed by a closure member.... | 05/18/1993 |
| 5191870 | Diagnostic system for canister purge system An on-board diagnostic system determines if there is a leak in the portion of a canister purge system that includes the fuel tank and the canister that collects volatile fuel vapors from the fuel tank's headspace. A vacuum regulator/sensor placed in the c... | 03/09/1993 |
| 5188141 | Vacuum boost valve A vacuum boost valve senses when the intensity of vacuum from a variable intensity vacuum source is about to drop below a threshold and supplies a boost so that when the intensity of the vacuum source is within a range immediately below the threshold, the... | 02/23/1993 |
| 5184773 | Pressure regulating heater control valve A pressure relief function is incorporated into a proportional solenoid controlled heater valve for an automobile heater. One of two internal valve seats is spring-biased against an internal shoulder and is exposed to pressure differential across it. When... | 02/09/1993 |
| 5183022 | Multi-slope canister purge solenoid valve A multi-slope canister purge solenoid (CPS) valve has a diaphragm-controlled valve downstream of the solenoid-actuated valve. The diaphragm-controlled valve has two diaphragms that between themselves define a chamber space that is communicated to intake m... | 02/02/1993 |
| 5176114 | Engine intake manifold tuning by active noise control Two speakers are mounted on an engine air induction system to broadcast respective pressure waves into the induction system. One speaker is near the junction of a runner and a plenum. The other is near the outside air intake. Both speakers are driven by e... | 01/05/1993 |
| 5176121 | Bumpers for protecting an O-ring seal of a fuel injector during the injector's insertion into a socket The interior sidewall surface of a fuel injector socket is provided with a pair of bumpers, one to either side of an opening in the sidewall surface that communicates the socket to a fuel passage. The bumpers prevent an O-ring seal that is disposed around... | 01/05/1993 |
| 5163387 | Device for attenuating standing waves in an induction intake system The device has a generally cylindrical chamber with a fluid inlet in an end wall and a fluid outlet in the sidewall. Fluid introduced into the device via the inlet passes through a venturi before being discharged into the interior of the chamber. A curved... | 11/17/1992 |
| 5162621 | Internal sidebranch resonator A Helmholtz resonator is disposed interiorly of a gas-carrying conduit to attenuate noise passing through the conduit. The Helmholtz resonator encloses a volume that is communicated to the gas flow by a through hole in the wall of the enclosure. The condu... | 11/10/1992 |
| 5158045 | Engine induction system having a telescopic throttle body A throttle body has telescopically engaged parts that allows it to be telescopically contracted for insertion into the induction system at assembly and then telescopically expanded to secure its installation.... | 10/27/1992 |
| 5146902 | Positive pressure canister purge system integrity confirmation The tank/canister volume's integrity against unacceptable leakage is either confirmed or denied by a diagnostic test performed by an on-board diagnostic system which includes an electrically operated air pump and a pressure switch. At the beginning of a t... | 09/15/1992 |
| 5140844 | Air bag sensor thruster fixture A testing fixture for use on a thruster machine for the purposes of testing ball and tube supplemental inflatable sensors for use in air bag applications for motor vehicles. The fixture is fabricated from light weight materials and has clamp 30 fabricated... | 08/25/1992 |
| 5140963 | Fuel rail mounting for a fuel injector Tabs and slots are provided on a fuel injector and a fuel rail respectively to provide for the injector to be installed in a transverse through-hole in the fuel rail by circumferentially registering the tabs with the slots, inserting the injector into the... | 08/25/1992 |
| 5115785 | Carbon canister purge system A pulse width modulated solenoid-actuated valve and a vacuum-actuated valve for cooperatively associated such that the purge system possesses both accurate control at low purge flows and the capacity for handling much higher flows. The two valves are in p... | 05/26/1992 |
| 5094218 | Engine exhaust gas recirculation (EGR) EGR is controlled by a valve whose actuator is a moving electromagnetic coil through which control current representing the desired degree of valve opening is conducted. The coil is disposed in an air gap of a magnetic circuit such that the magnetic flux ... | 03/10/1992 |
| 5069188 | Regulated canister purge solenoid valve having improved purging at engine idle Improved idle purging is obtained in a regulated canister purge solenoid valve by communicating the atmospheric chamber space of the regulator mechanism to atmosphere through the canister and providing in the movable wall of the regulator mechanism an ori... | 12/03/1991 |
| 5065575 | Air flow/check valve An air flow/check valve for an exhaust emission system combines flow and check functions into a single valve which is especially well-suited for use with an electric motor driven air pump. The valving mechanism is operated by a fluid actuator, and pressur... | 11/19/1991 |
| 5060983 | Clampless hose connection A relatively resilient hose end telescoped over a relatively rigid tube end wherein a first axial zone of the tube end has an exterior rib with a circumferentially continuous radially outermost edge and a second axial zone of the tube end proximal to the ... | 10/29/1991 |
| 5059751 | Combination arming/discriminating inertia switch The switch assembly comprises a single inertial sensing mass which is magnetically biased to an initial position along a path of travel within an enclosure. In this position, the mass holds a normally closed arming switch open. A normally open discriminat... | 10/22/1991 |
| 5050568 | Regulated flow canister purge system The evaporative emission control system for an internal combustion engine purges the vapor collection canister to the intake manifold through a purge regulator controlled by the engine ECU. The purge regulator comprises a diaphragm valve and an electronic... | 09/24/1991 |
| 5048566 | One-piece blow-molded valve and actuator A valve assembly embodies a valve element, an expansible and contractible chamber space having porting via which it is expanded and contracted, and a connecting rod that transmits the expansion and contraction of the chamber space to the valve element, in... | 09/17/1991 |
| 5042448 | Idle air bypass A valve assembly of novel configuration is associated with the main air induction passage of a fuel-injected, spark-ignited, automotive internal combustion engine for the purpose of regulating the idle air flow. The valve assembly has an inlet connected u... | 08/27/1991 |
| 5012050 | Dual pole switch assembly for an inertia actuated switch An inertia switch comprises a mass which actuates an electrical switch assembly upon being subjected to a predetermined velocity change. The switch assembly comprises a set of two electrical contacts that are disposed within a switch enclosure in resilien... | 04/30/1991 |
| 5010217 | Inertia switch mounting housing An inertia switch assembly comprises an inertia switch assembly element encapsulated by potting material within a housing. The inertia switch assembly element comprises a non-magnetic enclosure containing an inertial mass and switch contacts. The switch c... | 04/23/1991 |
| 4973804 | Low profile inertia switch A diaphragm-type inertia switch for sensing deceleration places the inertial mass in the chamber that contains the contacts. The other chamber has a thin concave-convex shape that gives the switch a low profile. The switch has a molded plastic base contai... | 11/27/1990 |
