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142 results about "Close coupling" patented technology

Compact turbocharger

The use of anti-friction ball bearings in a unique arrangement does not require the use of lubricating oil from the internal combustion engine lubricating system and permits close coupling of the bearings and a compact turbocharger. A turbocharger bearing housing forms a coolant jacket with an inner bearing engaging portion that has two bearing engagement surfaces engaged with the outer races of two anti-friction bearings whose inner races carry rotating shaft, turbine and compressor of the turbocharger. The anti-friction bearings are, preferably, angular contact ball bearings, and the two bearing engagement surfaces of the bearing housing are closely spaced, providing a turbocharger shaft of minimal length and substantially reducing the thermal expansion of the shaft. The coolant jacket protects the anti-friction bearings from exposure to the extreme heat of the exhaust gas driven turbine, notwithstanding their increased proximity due to the shortened turbocharger shaft. In addition, an external motor-generator may be carried by the compact turbocharger, and its motor may be connected to the turbocharger rotor assembly by a permanent, solid connector and stay connected throughout the entire operating range of the turbocharger. In such assembly, the electronic motor-generator control is mounted on the motor housing and energizes the motor from battery power during the engine acceleration period up to approximately the torque peak speed; thereafter, the control changes to a generator mode when excess energy is available in the engine exhaust gas.
Owner:WOOLLENWEBER WILLIAM E

Non-contact multiple input voltage source type resonant converter

The invention relates to a non-contact multiple input voltage source type resonant converter, belonging to the electric energy transformation field. The resonant converter comprises a primary side circuit, a multiple winding non-contact transformer (4) and a secondary side circuit; wherein the primary side circuit is composed of n energy input branches, each branch is formed by sequentially connecting an input source (1), a voltage source type contravariant bridge (2) and a primary resonant network (3) on one primary side winding of the multiple winding non-contact transformer (4) in series; nprimary side windings of the multiple winding non-contact transformer (4) are tightly coupled, the primary side and the secondary side are relatively movable; the secondary side circuit is formed bysequentially connecting a secondary side resonant network (5) and a rectifying and filtering circuit (6) in series; and in the n energy input branches, the primary side resonant networks of at least n-1 branches includes a series inductance. Inherent current source characteristic of the voltage source type resonant converter and tightly coupled primary side multiple winding realize multiple inputsource time-sharing/simultaneous multiple mode power supply; and non-contact power supply ensures safety and convenience.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Effective SCR (selective catalytic reduction) catalyst applied to purification of nitrogen oxide in tail gas of diesel engine

The invention relates to an effective SCR catalyst applied to purification of nitrogen oxide in tail gas of a diesel engine, and belongs to the technical field of motor vehicle exhaust emission purification by a catalysis method. According to the catalyst, two or more of titanium, tungsten, silicon and zirconium oxide are used as a base coating, and one or more of vanadium oxide, manganese oxide and copper oxide are used as an active ingredient. The catalyst is coated on a cordierite honeycomb ceramic or iron-chrome-aluminum honeycomb metal carrier to be applied to post treatment of nitrogen oxide of tail gas of the diesel engine in a mode of a honeycomb catalyst. The catalyst has the advantages that the loss rate of the specific surface area of the coating under a high temperature reaction condition can be reduced by utilizing the close coupling structure among the oxides in the base coating, the heat stability and durability of the catalyst can be improved, and the service life of the catalyst can be prolonged; the low-temperature reaction cavity of the catalyst can be remarkably improved by adding manganese, copper and other active ingredients, so that nitrogen oxide can be effectively eliminated at a low exhaust temperature of the diesel engine.
Owner:WUXI WEIFU ENVIRONMENT PROTECTION CATALYST
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