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Equipment for the production of at least one hollow valve

A kind of equipment, hollow technology, applied in the direction of mechanical equipment, metal processing equipment, electrochemical processing equipment, etc., can solve the problems of complex production of hollow valves, etc., to achieve the effect of economical production

Active Publication Date: 2018-11-27
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But a disadvantage of the known hollow valves is their relatively complex production, since extremely precise guidance and positioning of the cathodes is necessary to produce the chambers arranged in the valve disc or valve head

Method used

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  • Equipment for the production of at least one hollow valve
  • Equipment for the production of at least one hollow valve
  • Equipment for the production of at least one hollow valve

Examples

Experimental program
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Embodiment Construction

[0019] according to figure 1 , the device 1 according to the invention for producing at least one hollow valve 2 for gas exchange, in particular for an internal combustion engine, has at least one valve holder 3 , in this case two valve holders 3 . The hollow valve 2 to be machined is inserted upside down into the valve holder 3 until its valve head 4 rests on the valve head holder 5 . Of course, it is alternatively also conceivable that the hollow valve 2 is to be machined in any position, in particular in a standing or lying position, and not only in a suspended manner. The valve holder 3 is composed of a valve stem centering device 6, a valve socket 7 and a valve head holder 5. The valve socket 7 is assembled with the valve stem of the hollow valve 2 to be held, and the valve head holder 5 is assembled with the hollow valve 2 to be held. Keep the valve head 4. The valve holder 3 is arranged by means of its valve stem centering means 6 on the first carriage 8 . Furthermor...

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Abstract

The invention relates to a device (1) for producing at least one hollow valve (2) for gas exchange, in particular for an internal combustion engine, the device (1) having: - at least one valve holder (3), which is held by the valve The stem centering device (6), the valve socket (7) and the valve head holder (5) are composed, the valve socket (7) is assembled with the valve stem to be held, and the valve head holder (5) is assembled with the valve head to be held (4); - a first carriage (8) on which said valve holder (3) is arranged by means of said valve stem centering means (6); - at least one cathode holder ( 10) which is arranged on a second carriage (9) and has a cathode (11) which can be introduced through said first carriage (8) into a hollow valve via said valve stem centering means (6) (2) bore; - at least one contact plate (12) opposite the valve head holder (5).

Description

technical field [0001] The invention relates to a device for producing at least one hollow valve for gas exchange, in particular for internal combustion engines. Background technique [0002] Hollow valves for internal combustion engines have long been part of the state of the art, enabling a longer service life and improved performance of the internal combustion engine due to the cooling effect. In addition to the simple heat dissipation via the seat ring in the cylinder head, such hollow valves also offer the possibility to accommodate a cooling medium (e.g. sodium) in their chamber, as a result of which advantages can be achieved especially as an outlet valve . Sodium melts at 97.5 degrees Celsius and is also a very good conductor of heat. Due to the operating temperature of the internal combustion engine, the sodium becomes liquid and then moves back and forth in the rod by mass force. This is also known as the "shaker effect". The coolant, ie usually sodium, transfer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H3/00B23H9/00B23H7/26
CPCB23H3/00B23H7/26B23H9/00F01L3/12F01L3/14B23H9/14F01L2303/00F01L3/20
Inventor 彼得·克罗斯克里斯托弗·卢维恩
Owner MAHLE INT GMBH