The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 1977
Filed:
Jan. 19, 1976
Steven Anthony Reich, Waterloo, IA (US);
Deere & Company, Moline, IL (US);
Abstract
Disclosed herein is a hydraulic aneroid control consisting of a housing containing a hydraulic piston and a flow control mechanism. The housing attaches to the governor housing so that the piston can move the fuel control shaft which engages the aneroid. When the engine is started, engine oil pressure acts on the piston to engage the aneroid. When the engine is not running, spring force moves the piston and fuel control shaft to the disengage position. The flow control mechanism restricts oil flow into the cylinder thus slowing the piston movement and increasing the time to engagement so that even though engine oil comes up to pressure almost immediately upon cranking of the engine, aneroid engagement is delayed until after the engine starts. The flow control mechanism also includes a check valve to bypass the flow restriction when the engine is shut down so that the aneroid is disengaged quickly and the engine has a fast re-start capability. In the preferred embodiment of the invention the flow restriction takes the form of a bore with a wire loosely positioned therein, the bore and wire forming a capillary.