ENGINE BLOCK ASSEMBLY

摘要

An engine block assembly includes an engine block casting including a plurality of cylinder bores disposed in series, each cylinder having a cylinder wall. Outer engine block walls are peripheral to the cylinder walls. A channel is formed between outer peripheral surfaces of the cylinder walls and the outer engine block walls. A coolant passage fluidly connects through the outer block walls to the channel. A water jacket insert includes an upper flange, a strut portion and a lower flange. A plurality of orifices are formed in the strut portion. A compressible seal attached to the lower flange of the water jacket insert, which is assembled into the channel and conforms to a bottom portion of the channel.

主权项

1. An engine block assembly, comprising:
an engine block casting, including:
a plurality of cylinder bores disposed in series, each cylinder having a cylinder wall;outer engine block walls peripheral to the cylinder walls;a channel formed between outer peripheral surfaces of the cylinder walls and the outer engine block walls; a coolant passage fluidly connected through the outer engine block walls to the channel; and a water jacket insert, including:
an upper flange, a strut portion and a lower flange;a plurality of orifices formed in the strut portion; anda compressible seal assembled onto the lower flange of the water jacket insert; the water jacket insert being assembled into the channel of the engine block casting; the compressible seal of the water jacket insert conforming to a bottom portion of the channel; and the water jacket insert defining a first coolant chamber fluidly connected to the coolant passage and a second coolant chamber adjacent to the outer peripheral surfaces of the cylinder walls, the first and second coolant chambers being fluidly connected through the plurality of orifices in the strut portion.