Engine cylinder head push rod tube configuration

a technology of push rod tube and cylinder head, which is applied in the direction of cylinders, machines/engines, mechanical equipment, etc., can solve the problems of reducing the air flow rate, and reducing the efficiency of cylinders

Active Publication Date: 2015-11-12
CHAMPION POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention relates to a cylinder head and push rod tube configuration for an internal combustion engine. The technical effects of the invention include improved fuel efficiency, reduced emissions, and improved overall performance of the engine. The cylinder head design allows for better air and fuel mixing, while the push rod tube configuration facilitates better rocker arm and piston movement. The use of separate push rods and rocker components also allows for easier maintenance and replacement. These features make the invention ideal for use in multi-cylinder engines, where performance and efficiency are critical.

Problems solved by technology

Unfortunately, these components degrade over time and must be replaced and are time consuming to manufacture and install.
Push rod tubes formed in the cylinder head also restrict air flow and reduce cooling capacity.

Method used

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Examples

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Effect test

Embodiment Construction

[0030]Embodiments of the invention are directed to an intake port of a cylinder head of an air cooled internal combustion engine; a push rod tube configuration within the cylinder head of the air cooled combustion engine; and an air guide for directing cooling air to the cylinder head of the air cooled combustion engine. The various embodiments of the invention are incorporated into the air cooled internal combustion engine, which in turn is incorporated as a prime mover / prime power source in any of a number of various applications, including but not limited to, power generators, lawnmowers, power washers, recreational vehicles, and boats, as just some examples. While embodiments of the invention are described below, it is to be understood that such disclosure is not meant to be limiting but set forth examples of implementation of the inventions. The scope of the inventions is meant to encompass various embodiments and any suitable application in which a general purpose internal com...

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PUM

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Abstract

A cylinder head and push rod tube configuration for an internal combustion engine is disclosed. The cylinder head includes a first end comprising a recessed rocker arm cavity. The cylinder head also includes a second end opposite the first end and defining an upper end of a combustion chamber. The recessed rocker arm cavity has a lower surface with a pair of push rod tube bores therethrough. The second end of the cylinder head has a pair of push rod tubes positioned in the push rod tube bores between the recessed rocker arm cavity and the second end. An intake port and an exhaust port each extend through the cylinder head to the combustion chamber.

Description

BACKGROUND OF THE INVENTION[0001]Embodiments of the invention relate generally to overhead valve (OHV) engines utilizing push rod tubes, and more particularly, to an engine cylinder head and push rod tube configuration.[0002]Overhead valve (OHV) engines use push rods to actuate valves in a cylinder head. The push rods are driven by a camshaft located in the engine block. The push rods actuate one end of a rocker arm which pivots on a trunnion pin or a rocker shaft located above the cylinder head. The other end of the rocker arm actuates an intake or exhaust valve. The rocker assembly is usually encased by a rocker cover.[0003]In some engines, the push rods are contained in push rod tubes which protect the push rods and provide a path for oil to flow between the crankcase and rocker cover. Since push rods typically extend from the cylinder head to the block, when push rod tubes are utilized, they too extend from the cylinder head to the block. This results in requiring an affirmative...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F02F1/24F02F1/32
CPCF02F1/32F02F1/24F01L1/146F01L1/18
Inventor DOPKE, RUSSELL J.SOTIRIADES, ALEKO D.SARDER, MARK J.
Owner CHAMPION POWER EQUIP
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