Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Taiho Kogyo Kabushiki Kaisha

Takamitu Mukai

Tomoo Fujii

Shozo Nakayama

Kimio Kato

Hiroya Kono

Tatsuhiko Fukuoka

Kenichiro Futamura

Eizi Asada

Hiroya Kouno

A round plate shape shoe for incorporation into a swash plate type compressor as an operative engaging element intervened between a rotatable swash plate and a reciprocal piston is structured to have a first flattened face slidably contacting the swash plate and a second face opposite to the first flattened face, the second face being formed with a recess for receiving a ball bearing, which has a spherical shape portion complementary with a part of the ball bearing and a round bore portion with a bottom. The spherical shape portion of the recess is concentric with the round bore portion.

Structure of a shoe for a swash plate type compressor

Shoes for operatively connecting a swash-plate with the compression pistons of a swash-plate type compressor are made from a novel Cu-based alloy. Improved shoes are characterized by a combination of high heat conductivity and excellent wear resistance properties particularly when subjected to a lubricating condition so severe that no lubricating oil is supplied to the surface of the shoes at the initial period of the compressor operation. At least three alloying elements are selected from Mn, Si, Pb, Sn, the IVb and VIb groups of the periodic table, and added in predetermined amounts to the Cu-based alloy, so that the properties mentioned above are simultaneously obtained. The compressor according to the present invention can be reliably employed, without the occurrence of seizure over a long operational period for air-conditioning vehicles, in which the sliding condition of the shoes is drastically varied with the rotation of the engine.

Swash-plate-type compressor for air-conditioning vehicles

A swash plate type compressor for compressing a refrigerant of an air conditioning system incorporating therein a rotating swash plate made of an aluminum alloy, one or more compressor pistons reciprocating in a cylinder block for effecting compression of the refrigerant, and an operative engagement means which is between the swash plate and the piston or pistons. The operative engagement means is made of a carbon steel material and a flattened face of the operative engagement means contacting the aluminum alloy swash plate consisting of a cementation treatment layer formed in the carbon steel material of the operative engagement means.

Swash plate type compressor

Shoes for operatively connecting a swash-plate with the compression pistons of a swash-plate type compressor are made from a novel Cu-based alloy. Improved shoes are characterized by a combination of high heat conductivity and excellent wear resistance properties particularly when subjected to a lubricating condition so severe that no lubricating oil is supplied to the surface of the shoes at the initial period of the compressor operation. Phosphorus and elements of C group (Pb and/or Sn), as well as elements of A group (Mn and Si) and/or B group (the IVb and VIb groups of the periodic table), are added in predetermined amounts to the Cu-based alloy, so that the properties mentioned above are simultaneously obtained. The compressor according to the present invention can be reliably employed, without the occurrence of seizure over a long operational period for air-conditioning vehicles, in which the sliding condition of the shoes is drastically varied with the rotation of the engine.

An apparatus for protecting a compressor from breakdown, in the case where the compressor is arranged so as to be connected to a drive source by means of an electromagnetic clutch having therein an excitation circuit connected, at its one end, to electric power source, and at its other end, to a body of the compressor via a grounding lead wire, which is characterized in that the grounding lead wire is connected to the body of the compressor by means of an electrically conductive connecting member made of a material which is capable of melting under a thermal effect of the compressor when the compressor is overheated.

Growing community of inventors

Kariya, Japan

Takamitu Mukai