Spool valve having a channel

US10767781B2 · kind B2 · utility

Assignee

• SVM Schultz Verwaltungs-GmbH & Co. KG · DE

Inventors

• Helmut Mang · Memmingen, DE
• Florian Schreiber · Kadeltshofen, DE

Key dates

• Filing date: Dec 22, 2017
• Grant date: Sep 8, 2020
• Expiry date: Dec 22, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2061/0253
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A spool valve, in particular for an automatic transmission of a motor vehicle, having a valve housing, which houses a guide element, in which an axially movable valve spool is arranged, and the valve housing having at least one radial pressure connection and a radial tank connection being axially distanced therefrom, and a frontal working connection. The guide element has at least one pressure connection opening connected to the pressure connection and one tank connection opening, axially distanced therefrom and connected to the tank connection and one working connection opening, which is axially positioned between the pressure connection opening and the tank connection opening and is connected to the working connection. In the valve housing a partially axially extending connection duct is present, which connects the working connection opening to the working connection.