Toyota Jidosha Kabushiki Kaisha

Pacific Industrial Company, Ltd.

Nihon Parkerizing Co., Ltd.

Kabushiki Kaisha Toyota Jidoshokki

Uchiyama Manufacturing Corp.

Hiroyuki Sato

Kazuya Yoshijima

Takaomi Nakayama

Tomonari Inoue

Naohiro Hayashi

Masaki Terada

Yasushi Yamazawa

Eisaku Okada

Tsutomu Okuda

Tadashi Matsushita

Yasuhiro Tsutiya

Tosio Aoki

Toshiyuki Aishima

Katsuhiro Shiota

Fumiya Yoshida

Kazuhiro Ishikura

Atsushi Konno

Michiro Kurosawa

Yoshifumi Taga

Kenji Takeuchi

Naoto Matsubara

Daisuke Uotani

Naohisa Miyashita

Takahiro Shimizu

In an oil pan, an outer surface of an oil pan body is covered with urethane foam material. The outer surface of the oil pan body is cation treated to be a surface-treated layer, and the urethane foam material is adhered to the outer surface of the oil pan body by the surface-treated layer without any gaps therebetween. The oil pan further includes an undulating portion formed on the outer surface of the oil pan body and undulating in an inward and outward direction. The surface-treated layer is formed on the undulating portion and the urethane foam material is adhered to the undulating portion without any gaps therebetween. The undulating portion includes a bowl-shaped recess recessed into a bowl shape toward an inner side of the oil pan body and the urethane foam material is adhered to an entire inner surface of the bowl-shaped recess without any gaps therebetween.

Oil pan and method for manufacturing oil pan

A double sump oil pan includes a separator made of plastic that partitions the interior of the oil pan into an inner sump and an outer sump, a plate, and an elastically deformable sealing member attached to the plate. The sealing member closely contacts the inner wall of the oil pan and seals the outer sump. The plate and the separator are fixed to each other.

Oil pan

In an oil pan inner tank valve structure, a disc-shaped float valve is arranged below a valve port that provides fluid communication between the inside and outside of a bottom wall of an inner tank, and a lower cover is arranged below the float valve. In addition, a center recess is depressed at a lower surface center of the float valve, and a lateral movement restricting pin is upright from the lower cover and is constantly engaged with the center recess by recess/protrusion engagement. The lower cover restricts a vertically movable range of the float valve. In addition, the lateral movement restricting pin restricts lateral movement of the float valve so that a top portion of an upper surface bulged portion vertically constantly faces an area inside a valve seat.

Oil pan inner tank valve structure

A composition for surface treatment of aluminium, aluminum alloys, magnesium or magnesium alloys and the treating solutions being diluted to the desired concentration are defined. The composition contains (1) compound A containing at least one metal element selected from the group consisting of Hf(IV), Ti(IV) and Zr(IV), (2) a fluorine-containing compound of sufficient amount to make fluorine exist in the composition in an amount of at least 5 times the molarity of the total molarity of the metal contained in the above-mentioned compound A, (3) at least one metal ion B selected from the group of alkaline earth metals, (4) at least one metal ion C selected from the group consisting of Al, Zn, Mg, Mn and Cu, and (5) nitric ion and the mol concentration of compound A is 0.1-50 mmol/L as the metal element of Hf(IV), Ti(IV) and Zr(IV). A metal treated with the treating method of the present invention solution has an excellent resistance to various corrosive environments.

Surface treating solution for surface treatment of aluminum or magnesium metal and a method for surface treatment

A metal material having a coating formed by a surface treatment on the surface of the metal material is provided. The coating has an excellent corrosion resistance with or without a further coating that is equivalent or superior to the prior art coating formed by zinc phosphate treatment or chromate treatment, is free from sludge formation or environmentally harmful components, and is formed by using a component capable of deposition with a simple method. A surface-treated metal material having on a surface of a metal material a coating layer formed by a surface treatment, the coating layer containing the following components (A) and (B), wherein (A) is an oxide and/or hydroxide of at least one metallic element selected from the group of Ti, Zr, and Hf and (B) is aluminum; wherein, in the coating layer formed by the surface treatment, the weight ratio K(=B/A), which is the weight ratio of the coating weight B of aluminum of the component (B) to the total coating weight A of the metallic element in the component (A), is in the range of 0.001&#x2266;K&#x2266;2.

Surface treated metal material

A core material for steering wheels, comprising a boss equipped with sleeves in a unitary structure, each of which sleeves has a slit in the axial direction thereof, said sleeves further being packed with superposed fiber strands; a ring portion; and spoke portions which connect said ring portion to said boss and being formed by winding and stretching continuous long-staple fiber strands impregnated with a resin to form the superposed strands within said sleeves.

Fiber-reinforced plastic core material for steering wheels

Growing community of inventors

Motosu-gun, Japan

Hiroyuki Sato