Pre-start engine oiler

US5655495A · kind A · utility

Inventor

• John E. Richards · Metairie, US

Key dates

• Filing date: Oct 8, 1996
• Grant date: Aug 12, 1997
• Expiry date: Oct 8, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16N2280/02
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A pre-start engine oiler for internal combustion engines provides a pressurized charge of oil to the lubricating system when the ignition key is turned to the on position and prior to engaging the starter. A reservoir connected with a valve body is supplied with oil under pressure from the engine lubricating system through a check valve disposed in an oil passage in the body when the oil pump pressure exceeds the reservoir pressure during the course of operation. The oil passage is connected by an oil line to an existing oil conduit by a tee or to an adapter installed between the oil filter and the engine block. Oil ports above and below the check valve extend between the oil passage and a piston chamber containing a sliding piston which normally closes flow through the oil ports. The piston is retracted by a solenoid connected in series to the ignition circuit through an electronic timer and switch. When the ignition key is turned to the on position and before it reaches the start position to engage the starter, the solenoid is energized to retract the piston and rapidly discharge the pressurized oil from the reservoir through the oil ports and into the oil galley at a pressure ap…