Coolant pump chamber cover with ignition module supports

Details Coolant pump chamber cover with ignition module supports Coolant pump chamber cover with ignition module supports

2000-06-05

2001-08-28

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Cooling

With liquid coolant circulating means

C123S041310, C123S19800E

Reexamination Certificate

active

06279515

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATIONS
(Not Applicable.)
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
(Not Applicable.)
FIELD OF THE INVENTION
The field of the invention relates to internal combustion engines, more particularly to a coolant pump housing for use with an internal combustion engine.
DESCRIPTION OF THE BACKGROUND ART
Ignition module supports or posts provide an attachment for mounting an ignition module for starting an internal combustion engine. These ignition module supports are generally elongated members having a relatively small cross-section. Due to this construction the ignition module supports can crack or break off during use. Typically, the supports are cast on the crankcase of the engine so as to be in close proximity to the engine cylinders, which is important to reduce size requirements of the engine and eliminate lengthy electrical system cabling. If one or both supports were to break, the crank case would have to be repaired by welding or replaced entirely. In either case, the labor or replacement part costs are considerable.
BRIEF SUMMARY OF THE INVENTION
The present invention provides an improved coolant pump housing for an internal combustion engine having a pump chamber cover and at least one ignition module support. The pump chamber cover fastens to a pump base to define a pump cavity in fluid communication with inlet and outlet passageways, preferably used to communicate engine coolant through the coolant pump and the rest of the engine cooling system. The ignition module support is integral to, and extends from, the pump chamber cover to a mounting end. The mounting end has a mount for attaching an ignition module.
Although a single support may be sufficient, depending upon the ignition module to be used, it may be preferred to have a pair of ignition module supports. In either case, each ignition module support is preferably an elongated, post-like member extending from a top side of the cover and having a longitudinal bore sized to receive fasteners for mounting an ignition module. Also, the entire cover, including the supports, is preferably cast of aluminum.
An objective and advantage of the present invention is to provide support for ignition modules in an engine configuration in which the coolant pump would otherwise interfere with placement of ignition module supports. This objective is accomplished by casting the ignition module supports into the cover of the coolant pump chamber.
Another object and advantage of the present invention is reduce the repair and replacement cost of cracked or broken ignition module supports. The present invention provides for replacement of the ignition module supports by replacing only the coolant pump cover, rather than repairing or replacing the crankcase.
The foregoing and other objects and advantages of the invention will appear from the following description. In the description, reference is made to the accompanying drawings which form a part hereof, and in which there is shown by way of illustration a preferred embodiment of the invention.


REFERENCES:
patent: 3421825 (1969-01-01), Maycock
patent: 4951641 (1990-08-01), Takaishi et al.

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