Resources Contact Us Home
Engine assembly with valve seat vent passages and method of forming

Image Number 4 for United States Patent #8127735.

An engine assembly may include an engine block defining a cylinder bore, a cylinder head fixed to the engine block, and a valve seat insert. The cylinder head may include an intake port, defining an inlet in fluid communication with an air source and an outlet in fluid communication with the cylinder bore. The valve seat may be defined at the outlet of the intake port and may include a stepped region. The stepped region may define a seating surface extending radially outward from the intake port. The seating surface may include a series of protrusions circumferentially spaced from one another around the outlet and forming a series of recesses therebetween. The valve seat insert may be located within the stepped region and may include a first axial end surface abutting the protrusions on the seating surface.

  Recently Added Patents
Permutational memory cells
Vehicle exterior
System and method of automatic piloting for in-flight refuelling of aircraft, and aircraft comprising said system
Emergency power-off button with proximity alarm
Mobile phone
Vehicle running control system
Polarity switching member of dot inversion system
  Randomly Featured Patents
Apparatus for applying a treatment fluid having pivotal nozzle combs
Housing of an electronic device formed by doubleshot injection molding
Pacemaker with circuit for pulse width modulating stimulus pulses in accordance with programmed parameter control states
Method and apparatus for inferring item position based on multiple data
Methods and apparatus for proper installation and orientation of artificial eye or eyepiece insert onto a taxidermy mannequin or life-like sculpture
Termite station container
Packaging for an interferometric modulator
Resettable sandglass-type timing device which provides selective timing periods
Microwave landing systems
Double aperture tag