Compressor of exhaust turbocharger
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMasakazu Tabata
Life of this patent
Estimating the term…
Abstract
A compressor includes an impeller, a housing, and a connecting shaft. An inlet for introducing gas into a suction side of the impeller, and an annular groove formed in an outer periphery of the inlet are formed in the housing. The groove communicates with the inlet on the intake passage side. The groove is blocked on the impeller side. A gas outlet of an EGR passage is connected with a middle of the groove. An inner diameter of the groove is machined to be larger than an inner diameter of an end part of the gas outlet of the intake passage (an end part on the inlet side).
Claims6
A compressor of an exhaust turbocharger, the compressor comprising:
- an impeller coupled with an exhaust turbine shaft;
- a housing including an inlet communicated with an intake passage of an internal combustion engine on an upstream side of the impeller, the housing having
- a circular space communicated with the inlet and an EGR passage, the circular space being located so as to surround the inlet,
- one end of the circular space on the intake passage side being communicated with the inlet, the circular space being communicated with the EGR passage at a position closer to the impeller than a position communicated with the inlet, at least one part of the circular space being blocked at a position closer to the impeller than a position communicated with the EGR passage, and
- an inner diameter of an end of the inlet on the intake passage side being larger than an inner diameter of an end part of the intake passage on the inlet side.
Dependencies are inferred from the claim text.