1
John E Makaran: Control circuit for five-phase brushless DC motor. Siemens Electric, April 28, 1998: US05744921 (87 worldwide citation)

A control system (100) for a five-phase brushless DC motor (102) including a stator having five windings and a rotor (116) mounted for rotation relative to the windings (114). The windings (114) are adapted to be electronically commutated in response to the rotary position of the rotor (116). The co ...


2
Joseph DeSousa, Michael G Lehti: Combined air cleaner-resonator. Siemens Electric, February 2, 1999: US05865863 (61 worldwide citation)

A combined air cleaner and noise attenuating resonator device including a hollow cylindrical air cleaner element pressed to a fitting on a hose, the fitting latched to the housing in a position holding the air cleaner filter element within a cavity in a housing. An expansion chamber and a Helmholtz ...


3
Gary Kennedy: Engine induction air system having improved air filter accessibility. Siemens Electric, Russel C Wells, April 21, 1998: US05740774 (55 worldwide citation)

In installed position, a filter, comprising a removable particulate filter medium, is disposed in an induction air passage in circumferentially perimetrically sealed relation with the passage side wall. The passage wall has an opening providing for a drawer to be slid into and out of the passage. Th ...


4
Lai Lo, Dominic Leung, Piotr Grudzinski: Flexible process controller. Siemens Electric, Donald M Boles, July 29, 1997: US05651264 (55 worldwide citation)

A flexible process controller for coordinating the operations of various equipment is disclosed. Briefly stated, in the preferred embodiment of the present invention, various parameters of the sub-systems in a HVAC system are monitored and made alterable or changeable. These parameters are transmitt ...


5
John E Cook, Paul D Perry: Fuel vapor leak detection system. Siemens Electric, George L Boller, Russel C Wells, February 21, 1995: US05390645 (45 worldwide citation)

Leakage from a portion of a canister purge system which includes a fuel tank and a vapor collection canister is detected by closing off that portion and then positively pressurizing it by means of an air pump. The air that is pumped by the air pump is split into two separate paths, one to pressurize ...


6
Hugo Capdevila, Eric Bartlett, John Pharoah, William Gallivan: High efficiency, low-noise, axial fan assembly. Siemens Electric, November 26, 1996: US05577888 (42 worldwide citation)

A high efficiency fan and stator arrangement for generating an airflow through a heat exchanger is disclosed herein. The fan is rotated about its rotational axis by an electric motor, and includes eight blades extending radially from a hub to a circular band. Each fan blade has a stagger angle and c ...


7
Murray F Busato, Paul D Perry, John E Cook: Means and method for operating evaporative emission system leak detection pump. Siemens Electric, Russel C Wells, March 19, 1996: US05499614 (36 worldwide citation)

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 ambient atmospheric pressure. The pump is po ...


8
Gary I Kennedy: Multi-piece air filter housing and closure arrangement. Siemens Electric, Russel C Wells, February 25, 1997: US05605554 (35 worldwide citation)

An air filter housing including top and bottom housing portions joined by a catch. The housing portions each include a plurality of walls joined together to define an enclosure with and opening circumscribed by an edge. The edge of each portion includes a surface for contacting a seal disposed betwe ...


9
Gary Everingham: System and method for reducing engine noise. Siemens Electric, October 27, 1998: US05828759 (33 worldwide citation)

A system and method for reducing noise from an internal combustion engine using a duct housing receiving induction air flow to the engine. A space is defined within the duct housing surrounding a speaker enclosure associated with a speaker facing an open space upstream of the annular space. A sound ...


10
John E Cook, Murray F Busato, Paul D Perry: Leak detection pump with integral vent seal. Siemens Electric, December 12, 1995: US05474050 (32 worldwide citation)

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 ambient atmospheric pressure. The pump is po ...