Engine cylinder head with temperature-reducing pressure sensor bore
AssigneeCaterpillar Inc.
InventorsSteven Ramey, Alin R. Olaru, Jonathan R. Chittenden, Viorel Petrariu
Life of this patent
Estimating the term…
Abstract
In one instance, an engine cylinder head includes: an intake passage; an exhaust passage; a coolant channel having a first outer surface including a first portion and a second portion, the first portion being shared with the intake passage and the second portion being shared with the exhaust passage; a lubricant channel; and an in-cylinder pressure sensor (ICPS) bore at least partially defined by at least one wall having at least one second outer surface including a third portion and a fourth portion, the third portion being shared with the coolant channel and the fourth portion being shared with the lubricant channel.
Claims15
An engine cylinder head, comprising:
- an intake passage;
- an exhaust passage;
- a coolant channel having a first outer surface including a first portion and a second portion, the first portion being shared with the intake passage and the second portion being shared with the exhaust passage;
- a lubricant channel;
- and
- an in-cylinder pressure sensor (ICPS) bore at least partially defined by at least one wall having at least one second outer surface including a third portion and a fourth portion, the third portion being shared with the coolant channel and the fourth portion being shared with the lubricant channel.
An engine cylinder head system, comprising:
- an engine cylinder head comprising:
- an intake passage;
- an exhaust passage;
- a coolant channel having a first outer surface including a first portion and a second portion, the first portion being shared with the intake passage and the second portion being shared with the exhaust passage;
- a lubricant channel;
- and
- an in-cylinder pressure sensor (ICPS) bore including a first segment having a first diameter and being at least partially defined by a first wall having a second outer surface, the first wall sharing a third portion of the second outer surface with the coolant channel, and a second segment having a second diameter that is smaller than the first diameter and being at least partially defined by a second wall having a third outer surface, the second wall sharing a fourth portion of the third outer surface with the lubricant channel;
- and
- an ICPS disposed within the ICPS bore.
Dependencies are inferred from the claim text.