Air compressor having tilted piston

Abstract

An air compressor includes a cylinder housing having an outlet tube and an inner peripheral surface, a piston slidably received in the cylinder housing and having a piston rod, the piston is tilted relative to a longitudinal or lateral axis T of the piston rod, and a motor is coupled to the piston for moving the piston relative to the cylinder housing in a reciprocating action in order to generate pressurized air. The piston rod is tilted relative to the longitudinal axis Z of the cylinder housing, and the piston is arranged to be perpendicular to the longitudinal axis Z and the inner peripheral surface of the cylinder housing when the piston is moved toward the outlet tube in a pumping stroke for effectively compressing and pumping the air in the cylinder housing.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an air compressor, and more particularly to an air compressor having a tilted piston for effectively compressing or pumping the air in the pumping movement or stroke and / or for suitably increasing the compressing or pumping effect or operation to the air.[0003]2. Description of the Prior Art[0004]Typical air compressors comprise a cylinder housing attached or secured to a base and having a piston slidably disposed therein, and a motor secured to the base and coupled to the piston of the cylinder housing for actuating or driving the piston of the cylinder housing in a reciprocating action, in order to generate a pressurized air of a greater air pressure and a decreased flowing quantity and for supplying the pressurized air to inflate various air facilities, such as tires, air beds, air cushions, hovercrafts, etc.[0005]The cylinder housing normally includes an outlet tube having one or mor...

AI Technical Summary

Benefits of technology

[0010]The primary objective of the present invention is to provide an air compressor including a tilted piston for effectively compressing or pumping the air in the pumping movement or stroke and / or for suitably increasing the compressing or pumping effect or operation to the air.

[0012]The piston is tilted relative to the lateral axis T of the piston rod for a non-zero angle θ ranged between 0 and 45 degrees (0°<θ<45°, and preferably ranged between 2 and 10 degrees (2°<θ<10°), the piston rod is tilted relative to the longitudinal axis Z of the cylinder housing, and the piston is arranged to be perpendicular to the longitudinal axis Z and the inner peripheral surface of the cylinder housing when the piston is moved toward the outlet tube in a pumping stroke for effectively compressing and pumping an air in the chamber of the cylinder housing.

[0014]The valve device includes an opening form in the second side thereof, and the piston includes a limiting device extended from the piston and extended through the opening of the valve device for engaging with the second side of the valve device and for limiting the second side of the valve device to move relative to the piston, and for preventing the second side of the valve device from being over bent relative to the valve device. The cylinder housing includes a cavity formed therein for selectively receiving and engaging with the limiting device.

[0015]The cylinder housing includes a valve seat provided in the outlet tube and located between the outlet tube and the cylinder housing, and a spring-biased check valve disposed in the outlet tube and engaged with the valve seat to limit the pressurized air to flow from the chamber of the cylinder housing into the compartment of the outlet tube only, and to prevent the pressurized air from flowing backwardly from the compartment of the outlet tube into the chamber of the cylinder housing.

Problems solved by technology

However, all the pistons of prior arts include a piston rod extended therefrom, the piston rod includes a longitudinal axis and a lateral axis perpendicular with each other and passing through the orifice of the piston rod, but the piston is always parallel to the lateral axis and is simultaneously perpendicular to the longitudinal axis, while in use, particularly when the piston is forced to move into the cylinder housing in the compressing or pumping movement or stroke, the piston will be tilted relative to the cylinder housing and may not effectively compress or pump the air in the pumping movement or stroke.

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