Toyota Motor Engineering & Manufacturing North America, Inc.

Toyota Motor Corporation

Toyota Motor Engineering & Manufacturing, Inc.

Kyle Thomas Bernier

Tenghua Shieh

Shohei Nomura

Wei Liu Liu

Yeongching Lin

Toshiharu Noguchi

James Guitar

Neal Berner

An annular device for the temperature control of a pump is provided. That device is in fluid communication with the radiator coolant system of a vehicle, and the engine-warmed coolant flows through the annular device to warm the pump and thaw ice buildup. The device is removable and can be added on to an existing pump without any redesign of the existing pump housing.

Temperature control ring for vehicle air pump

The variable valve timing mechanism includes a housing, a rotor rotatably supported within the housing, and a lock pin. The housing includes a plurality of fluid chambers one of which includes a lock bore. The rotor includes a central portion and a plurality of vanes extending radially from the central portion. Each of the vanes extends into the fluid chambers of the housing to define an advanced fluid chamber and a retarded fluid chamber. One of the plurality of vanes includes a pin bore. The lock pin includes a shank section and an insertion section. The insertion section includes a nonlinear outer side profile. The lock pin is slidably received within the pin bore between an unlocked position and a locked position in which the insertion section of the lock pin is received within the lock bore of the housing thereby prohibiting relative rotation between the housing and the rotor.

Lock pin for variable valve timing mechanism

The present invention provides a pump assembly having an intake, an outtake, and a rotor rotatably mounted to a shaft. A propeller is fixedly mounted to the upstream portion of the rotor and is rotatable upon actuation of the rotor. A passageway is disposed on the rotor so as to provide a path for fluids to cool the shaft. The pump assembly includes chamber and a pipe. The chamber is disposed within the housing and is located downstream the intake and is in communication with the passageway. The pipe interconnects the chamber with the outtake. An impeller is fixedly mounted to the rotor opposite the propeller and draws air bubbles from the passageway into the chamber.

Pump assembly

In one embodiment, a method for determining a blow-by gas species concentration may include calculating one-dimensional engine performance data with a one-dimensional engine performance model. The one-dimensional engine performance data may be based at least in part upon an engine operating condition. The one-dimensional engine performance data may be transformed, automatically with a processor executing a two-dimensional ring dynamics model, into piston ring motion data. The two-dimensional ring dynamics model simulates geometrical changes to a piston-ring pack flow path. The blow-by gas species concentration may be determined with a network model including the one-dimensional engine performance model and a two-dimensional ring pack model. The two-dimensional ring pack model simulates species concentration change in the piston-ring pack flow path. The blow-by gas species concentration may be determined using the engine operating condition and the piston ring motion data.

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Clarkston, MI, United States of America

Kyle Thomas Bernier