(54) POWER TRANSMISSION SYSTEM OF AN AUTOMOBILE
(75) Inventors: Toshimichi Minowa, Mito (JP);
Hiroshi Sakamoto, Hitachi (JP);
Mitsuo Kayano, Hitachi (JP)
(73) Assignee: Hitachi, Ltd., Tokyo (JP)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 10/102,973
(22) Filed: Mar. 22, 2002
(65) Prior Publication Data
US 2002/0098940 Al Jul. 25, 2002
Related U.S. Application Data
(63) Continuation of application No. 09/543,783, filed on Apr. 6, 2000, now abandoned.
(30) Foreign Application Priority Data
Jun. 4, 1999 (JP) 11-99087
(51) Int. CI.7 F16H 37/06; F16H 3/72
(52) U.S. CI 74/665 B; 475/5
(58) Field of Search 74/665 A, 665 B,
74/665 E; 477/3; 475/5; 186/65.2, 65.3,
65.4
(56) References Cited
U.S. PATENT DOCUMENTS
2,019,424 A * 10/1935 Low 475/5 X
2,330,397 A * 9/1943 Trofimov 475/5
3,204,485 A * 9/1965 Cogswell 74/665 B
3,367,438 A 2/1968 Moore et al.
3,478,851 A * 11/1969 Smyth et al 477/5 X
4,233,858 A * 11/1980 Rowlett 477/3 X
4,335,429 A * 6/1982 Kawakatsu 364/424
4,382,484 A 5/1983 Anderson et al.
4,470,476 A 9/1984 Hunt
4,577,738 A * 3/1986 Yater 477/5 X
4,588,040 A 5/1986 Albright, Jr. et al.
5,513,719 A * 5/1996 Moroto et al 180/65.4
6,048,289 A * 4/2000 Hattori et al 477/5 X
6,142,907 A * 11/2000 Minowa et al 477/5
6,146,302 A * 11/2000 Kashiwase 475/5
6,251,042 Bl * 6/2001 Peterson et al 477/3
FOREIGN PATENT DOCUMENTS
DE 2805594 8/1979
FR 2689821 10/1993
JP 57080923 5/1982
JP 2000-142134 5/2000
* cited by examiner
Primary Examiner—Charles A Marmor
Assistant Examiner—Roger Pang
(74) Attorney, Agent, or Firm—Crowell & Moring LLP (57) ABSTRACT
A generator use gear enable to rotate freely against an input shaft of a transmission mechanism for altering a rotation number of an engine and a clutch mechanisms in which the input shaft of the transmission mechanism and the generator use gear are rotated together with are provided between the engine and the transmission mechanism. Further, on an extension line of the input of the transmission mechanism and to a rear portion of the transmission mechanism, an electric motor is provided. Accordingly, a compact size power transmission system of an automobile can be attained.
2 Claims, 3 Drawing Sheets
