Internal combustion engine with cartridge style water pump assembly

Patent metadata

Field	Value
Publication number	US-9410472-B2
Application number	US-201414289698-A
Country	US
Kind code	B2
Filing date	May 29, 2014
Priority date	May 29, 2014
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

An internal combustion engine includes a cylinder block having a cylinder head connected to an upper end thereof. A front end of the cylinder block has a coolant introduction passage. A timing chain provided at the front end is engaged to a camshaft sprocket associated with the cylinder head. A timing chain cover is mounted to and spaced forward of the cylinder block front end. A water pump assembly includes a pump housing and an impeller assembly. The pump housing is directly secured to the cylinder block and interposed between the timing chain cover and the front end of the cylinder block. The pump housing has a pump chamber in fluid communication with the coolant introduction passage. The impeller assembly is removably mounted in the pump chamber without removal of the timing chain cover. An end of an impeller drive shaft extends forward of the timing chain cover.

First claim

What is claimed is:

1. An internal combustion engine for a vehicle comprising:
a cylinder block having a cylinder head connected to an upper end of the cylinder block, a front end of the cylinder block having a coolant introduction passage;
a timing chain provided at the front end of the cylinder block and engaged to a camshaft sprocket operably associated with the cylinder head;
a timing chain cover mounted to the cylinder block and spaced forward of the front end of the cyli…

Assignees

• Honda Motor Co Ltd

Inventors

• Gacka Thomas B
• Walters Steven K

Classifications

• Y10T29/49233

  Cross-Sectional Technologies · mapped topic

• F01P5/12 Primary

  Mechanical Engineering · mapped topic