Title:
固着された滑り軸受層を備えた連接棒
Document Type and Number:
Japanese Patent JP4444491
Kind Code:
B2
Abstract:
Bearing shells are inserted into the connecting rods of internal combustion engines. This complicates the production process and can lead to errors being made. The aim of the invention is to provide a method for producing connecting rod bearings which are easier to mount and which are tightly connected to the bearing metal. According to the invention, the large connecting rod eye (3) is microporously plasma-coated with an aluminium-bronze. At the start of the plasma-spraying process, the plasma layer is deposited at a high temperature in order to ensure that the plasma layer bonds well to the connecting rod eye material and has a low level of porosity. In order to prevent the connecting rod eye material from glowing out, the depositing temperature of the plasma layer is reduced for the area which is removed when the plasma layer is subsequently treated. Once the plasma-coating process is complete, the connecting rod eye is opened by taking off the bearing cover (9), thus breaking the plasma layer. The cover (9) is then screwed back on and the actual friction layer is finished by fine spindling. The plasma layer (16) has a ring-shaped groove (32) in order to improve the oil holding volume. A particularly tight bond between the aluminium-bronze and the connecting rod material can be achieved by multiple sand-blasting of the surface to be coated with sand particles of increasing grain size. The invention is used in internal combustion engines.
Inventors:
Schlegel Oud
Vogelsang Reinhardt
Vogelsang Reinhardt
Application Number:
JP2000505430A
Publication Date:
March 31, 2010
Filing Date:
July 20, 1998
Export Citation:
Assignee:
VOLKSWAGEN AKTIENGESELLSCHAFT
International Classes:
F16C7/02; F16C33/10; C23C4/00; C23C4/12; C23C4/16; F16C9/04; F16C33/14
Domestic Patent References:
| JP9067662A | ||||
| JP5263212A | ||||
| JP61006421A | ||||
| JP61228121A | ||||
| JP7506176A | ||||
| JP8296024A | ||||
| JP8284621A | ||||
| JP9085311A | ||||
| JP3064443A | ||||
| JP7197935A | ||||
| JP1500763A | ||||
| JP8311634A | ||||
| JP55018522A |
Foreign References:
| WO1996004485A1 | ||||
| GB1531222A |
Attorney, Agent or Firm:
Mitsufumi Esaki
Tsuneo Mihara
Okumura Yoshimichi
Blacksmith
Tsuneo Mihara
Okumura Yoshimichi
Blacksmith