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Vacuum Pump

a vacuum pump and vacuum technology, applied in the field of vacuum pumps, can solve the problems of high noise level of vacuum pumps and ineffective heat dissipation of vacuum pumps, and achieve the effect of reducing noise level and increasing thermal dissipation efficiency

Inactive Publication Date: 2011-07-14
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In viewing of the above, the present invention provides an improved vacuum pump with a reduced noise level and higher thermal dissipation efficiency.
In the vacuum pump according to an embodiment of the present invention, the air flows from the pumping device into the inner dampening chamber, then the air runs into the outer dampening chamber. Because the inner dampening chamber has a volume smaller than that of the outer dampening chamber, the air flow is slowed down effectively by the presence of the hollow dampening member. Accordingly, noise is reduced effectively. Further, the sound-proof cap is attached to the pump ring, thus the first base plate and the pump ring are directly exposed in the air. Accordingly, heat from the air can be dissipated efficiently by being directly discharged into the air from the pump ring.

Problems solved by technology

Thus, the vacuum pump operates with a high level of noise.
Thus, the vacuum pump does not dissipate the heat effectively.

Method used

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Embodiment Construction

Reference will be made in detail to embodiments of the present invention. The embodiments described herein with reference to drawings are explanatory, illustrative, and used to generally understand the present invention. The embodiments shall not be construed to limit the present invention. The same or similar elements and the elements having same or similar functions are denoted by like reference numerals throughout the descriptions.

According to an embodiment of the invention, as shown in FIG. 2, a vacuum pump may comprise an actuator 20 with an actuating shaft 201; a mounting base 21 with a first side being attached to the actuator 20; a pumping device 10 having a pump ring 28 being attached to a second side of the mounting base 21 opposite to the first side; and a sound-proof cap 34 being attached to an end face of the pump ring 28 and the pumping device 10 being driven by the actuating shaft 201 passing through the mounting base 21. The end face of the pump ring 28 in the pumpin...

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Abstract

A vacuum pump comprises an actuator with an actuating shaft; a mounting base with a first side being attached to the actuator; a pumping device having a pump ring being attached to a second side of the mounting base opposite to the first side; and a sound-proof cap being attached to an end face of the pump ring and the pumping device being driven by the actuating shaft penetrating through the mounting base.

Description

CROSS-REFERENCE TO RELATED APPLICATIONThis application claims priority to and benefit of Chinese Patent Application No. 200810216288.0, filed in the State Intellectual Property Office of the P. R. China on Sep. 20, 2008, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to a vacuum pump.2. Background of the Related ArtA vacuum pump is a device for creating and maintaining a vacuum in an enclosed space. Presently, vacuum systems comprising a vacuum pump, a vacuum valve, a meter and pipes etc. are widely used many industries.Two types of vacuum pumps are gas transportation pumps and gas collection pumps. The gas transportation pumps, generally, include liquid ring vacuum pumps, reciprocating vacuum pumps and rotary vane vacuum pumps. The gas collection pumps include sorption pumps and cryopumps. The rotary vane vacuum pumps are used most widely due to a higher degree of vacuum and a compa...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F01D25/00
CPCF04C18/3442F04C27/005F04C2220/10F04C29/065F04C29/068F04C29/04
Inventor ZHAO, BINGYUAN, YECHEN, SHUJUNTANG, ZHENLIN
Owner BYD CO LTD
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