Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Check valve arrangement and motor vehicle vacuum pump

A technology of check valves and valve seats, applied in the direction of valve devices, machines/engines, components of pumping devices for elastic fluids, etc., capable of solving problems such as low effective flow cross-sections

Pending Publication Date: 2021-05-14
PIERBURG PUMP TECH
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The non-return valve arrangements disclosed in EP 1927786 B1 and DE 102012200492 A1 also only provide relatively low effective flow cross-sections, so that the non-return valve arrangements only allow a relatively low fluid throughput in the open position

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Check valve arrangement and motor vehicle vacuum pump
  • Check valve arrangement and motor vehicle vacuum pump
  • Check valve arrangement and motor vehicle vacuum pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The illustrated check valve arrangement 10 comprises a pot-shaped valve housing 12 having an integral valve seat portion 14, a valve travel limiter 16 fixed within the valve housing 12, and a valve travel limiter 16 loosely arranged within the valve housing 12. The disc-shaped valve body 18.

[0028] The valve housing 12 includes a cylindrical housing side wall 20 and a transverse housing base 22 . The housing sidewall 20 radially defines a valve body chamber 24 and the housing base 22 defines the valve body chamber 24 in a first axial direction. The housing base 22 is provided with a valve inlet opening 26 and defines a valve seat portion 14 radially surrounding the valve inlet opening 26 . Accordingly, the valve seat portion 14 is located at the first axial end portion 28 of the valve body chamber 24 .

[0029]The valve travel limiter 16 includes a support ring 30 , a platform structure 32 axially protruding from the axial side of the support ring 30 facing the valv...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention is directed to a check valve arrangement (10) comprising - a valve housing (12) radially defining a valve body chamber (24), - a valve seat (14) being located at a first axial end (28) of the valve body chamber (24) and radially surrounding a valve inlet opening (26), - a valve travel limiter (16) being located at a valve-seat-remote second axial end (36) of the valve body chamber (24), and - a disc-shaped valve body (18) being loosely arranged within the valve body chamber (24), - wherein the valve travel limiter (16) is provided with a support ring (30) being fixed to the valve housing (12), a central transversal platform structure (32) axially protruding from a valve-seat-facing side of the support ring (30), and a platform frame (34) axially connecting the transversal platform structure (32) with the support ring (30), wherein the platform frame (34) is provided with at least one radial frame opening (52). Because of the loosely arranged valve body (18), only a low actuation force is required to open the check valve arrangement (10). The valve travel limiter (16) with the axially protruding platform structure (32) avoids a canting or jamming of the valve body (18) and also allows a relatively high fluid throughput in the forward flow direction (F). The invention is also directed to a motor vehicle vacuum pump provided with such a check valve arrangement.

Description

technical field [0001] The present invention relates to a check valve device, in particular to a check valve device provided with a disc-shaped valve body. The invention also relates to a motor vehicle vacuum pump provided with such a non-return valve arrangement. Background technique [0002] WO 2017 / 036548 A1 discloses a motor vehicle vacuum pump provided with a non-return valve arrangement arranged in the suction port of the vacuum pump. The disclosed check valve device is provided with a valve housing radially defining a valve body chamber. The check valve device includes an annular shaped valve seat portion at a first axial end of the valve body chamber radially surrounding the valve inlet opening. The check valve device further includes an annular-shaped valve stroke limiter at a second axial end of the valve body chamber remote from the valve seat portion. The check valve device also includes a disc-shaped valve body disposed within the valve body chamber. The val...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16K15/02F04C25/02
CPCF04C25/02F16K15/028F04C29/126F16K27/0209
Inventor 斯特芬·施努尔纳比尔·萨利姆·阿尔哈桑斯坦尼斯劳斯·鲁斯托比亚斯·格吕内彼得拉·哈根马塞尔·彼得罗夫斯基塞巴斯蒂安·伊默尔
Owner PIERBURG PUMP TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com